diff --git a/.github/workflows/blake2.yml b/.github/workflows/blake2.yml
index 3303e5a71..cafd60cce 100644
--- a/.github/workflows/blake2.yml
+++ b/.github/workflows/blake2.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -49,7 +49,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v3
@@ -70,7 +70,7 @@ jobs:
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly-2021-05-01
+          toolchain: nightly
           override: true
       - run: cargo test --features simd
       - run: cargo test --features simd_opt
@@ -81,7 +81,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.51 # 1.41-1.50 `--features` can't be used inside virtual manifest
+          - 1.57.0
           - stable
         target:
           - aarch64-unknown-linux-gnu
diff --git a/.github/workflows/fsb.yml b/.github/workflows/fsb.yml
index 145676ae1..3e3481674 100644
--- a/.github/workflows/fsb.yml
+++ b/.github/workflows/fsb.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -49,7 +49,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/gost94.yml b/.github/workflows/gost94.yml
index fbac73a17..0878ee250 100644
--- a/.github/workflows/gost94.yml
+++ b/.github/workflows/gost94.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -63,21 +63,3 @@ jobs:
       - run: cargo test --no-default-features
       - run: cargo test
       - run: cargo test --all-features
-
-  # TODO: merge with test on MSRV bump to 1.57 or higher
-  test-msrv-41:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        rust:
-          - 1.41.0 # MSRV
-    steps:
-      - uses: actions/checkout@v3
-      - uses: RustCrypto/actions/cargo-cache@master
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: ${{ matrix.rust }}
-          override: true
-      - run: cargo test
-      - run: cargo test --no-default-features
diff --git a/.github/workflows/groestl.yml b/.github/workflows/groestl.yml
index 3fcf501bd..15fe10e27 100644
--- a/.github/workflows/groestl.yml
+++ b/.github/workflows/groestl.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -49,7 +49,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/k12.yml b/.github/workflows/k12.yml
index aede85d36..2f83e5fb4 100644
--- a/.github/workflows/k12.yml
+++ b/.github/workflows/k12.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
         target:
           # - thumbv7em-none-eabi # TODO: no_std w/o liballoc
@@ -49,7 +49,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/md2.yml b/.github/workflows/md2.yml
index 48f29a12c..3f9a771cc 100644
--- a/.github/workflows/md2.yml
+++ b/.github/workflows/md2.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -63,22 +63,3 @@ jobs:
       - run: cargo test --no-default-features
       - run: cargo test
       - run: cargo test --all-features
-
-  # TODO: merge with test on MSRV bump to 1.57 or higher
-  test-msrv-41:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        rust:
-          - 1.41.0 # MSRV
-          - stable
-    steps:
-      - uses: actions/checkout@v3
-      - uses: RustCrypto/actions/cargo-cache@master
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: ${{ matrix.rust }}
-          override: true
-      - run: cargo test --no-default-features
-      - run: cargo test
diff --git a/.github/workflows/md4.yml b/.github/workflows/md4.yml
index 19adf96d3..867e6d9f4 100644
--- a/.github/workflows/md4.yml
+++ b/.github/workflows/md4.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -64,21 +64,3 @@ jobs:
       - run: cargo test
       - run: cargo test --all-features
 
-  # TODO: merge with test on MSRV bump to 1.57 or higher
-  test-msrv-41:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        rust:
-          - 1.41.0 # MSRV
-          - stable
-    steps:
-      - uses: actions/checkout@v3
-      - uses: RustCrypto/actions/cargo-cache@master
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: ${{ matrix.rust }}
-          override: true
-      - run: cargo test --no-default-features
-      - run: cargo test
diff --git a/.github/workflows/md5.yml b/.github/workflows/md5.yml
index 681453d47..dd4b7b5fc 100644
--- a/.github/workflows/md5.yml
+++ b/.github/workflows/md5.yml
@@ -26,7 +26,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -52,7 +52,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v3
@@ -66,20 +66,3 @@ jobs:
       - run: cargo test --no-default-features
       - run: cargo test
       - run: cargo test --features asm
-
-  # TODO: merge with test on MSRV bump to 1.57 or higher
-  test-msrv:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        rust:
-          - 1.57.0 # MSRV
-    steps:
-      - uses: actions/checkout@v3
-      - uses: RustCrypto/actions/cargo-cache@master
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: ${{ matrix.rust }}
-          override: true
-      - run: cargo test --features oid
diff --git a/.github/workflows/ripemd.yml b/.github/workflows/ripemd.yml
index 7c1e74c30..a2878f506 100644
--- a/.github/workflows/ripemd.yml
+++ b/.github/workflows/ripemd.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -49,8 +49,6 @@ jobs:
     strategy:
       matrix:
         rust:
-          # Crate supports MSRV 1.41 without `oid` feature. We test true MSRV
-          # in the `test-msrv` job.
           - 1.57.0
           - stable
     steps:
@@ -66,20 +64,3 @@ jobs:
       - run: cargo test
       - run: cargo test --all-features
 
-  # TODO: merge with test on MSRV bump to 1.57 or higher
-  test-msrv:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        rust:
-          - 1.57.0 # MSRV
-    steps:
-      - uses: actions/checkout@v3
-      - uses: RustCrypto/actions/cargo-cache@master
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: ${{ matrix.rust }}
-          override: true
-      - run: cargo test --features oid
-      - run: cargo test --no-default-features
diff --git a/.github/workflows/sha1.yml b/.github/workflows/sha1.yml
index ca09fd895..bd6b91353 100644
--- a/.github/workflows/sha1.yml
+++ b/.github/workflows/sha1.yml
@@ -21,8 +21,6 @@ jobs:
   set-msrv:
     uses: RustCrypto/actions/.github/workflows/set-msrv.yml@master
     with:
-        # Crate supports MSRV 1.41 without `oid` feature. We test true MSRV
-        # in the `test-msrv` job.
         msrv: 1.57.0
 
   # Builds for no_std platforms
@@ -146,7 +144,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.51.0 # 1.41-1.50 `--features` can't be used inside virtual manifest
+          - 1.57.0
           - stable
         target:
           - aarch64-unknown-linux-gnu
@@ -173,17 +171,3 @@ jobs:
           package: ${{ github.workflow }}
           target: ${{ matrix.target }}
           features: ${{ matrix.features }}
-
-  # TODO: remove on MSRV bump to 1.57 or higher
-  test-msrv:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: RustCrypto/actions/cargo-cache@master
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: 1.41.0
-          override: true
-      - run: cargo test --no-default-features
-      - run: cargo test
diff --git a/.github/workflows/sha2.yml b/.github/workflows/sha2.yml
index d0cbe99a3..f3bcbfd77 100644
--- a/.github/workflows/sha2.yml
+++ b/.github/workflows/sha2.yml
@@ -21,8 +21,6 @@ jobs:
   set-msrv:
     uses: RustCrypto/actions/.github/workflows/set-msrv.yml@master
     with:
-        # Crate supports MSRV 1.41 without `oid` feature. We test true MSRV
-        # in the `test-msrv` job.
         msrv: 1.57.0
 
   # Builds for no_std platforms
@@ -118,10 +116,8 @@ jobs:
     strategy:
       matrix:
         include:
-          # 64-bit Windows (GNU)
-          # TODO(tarcieri): try re-enabling this when we bump MSRV
-          #- target: x86_64-pc-windows-gnu
-          #  toolchain: 1.41.0 # MSRV
+          - target: x86_64-pc-windows-gnu
+            rust: 1.57.0 # MSRV
           - target: x86_64-pc-windows-gnu
             rust: stable
 
@@ -143,7 +139,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.51.0 # 1.41-1.50 `--features` can't be used inside virtual manifest
+          - 1.57.0
           - stable
         target:
           - aarch64-unknown-linux-gnu
@@ -168,17 +164,3 @@ jobs:
           package: ${{ github.workflow }}
           target: ${{ matrix.target }}
           features: ${{ matrix.features }}
-
-  # TODO: remove on MSRV bump to 1.57 or higher
-  test-msrv:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: RustCrypto/actions/cargo-cache@master
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: 1.41.0
-          override: true
-      - run: cargo test --no-default-features
-      - run: cargo test
diff --git a/.github/workflows/sha3.yml b/.github/workflows/sha3.yml
index 94fd650ba..36246251c 100644
--- a/.github/workflows/sha3.yml
+++ b/.github/workflows/sha3.yml
@@ -21,8 +21,6 @@ jobs:
   set-msrv:
     uses: RustCrypto/actions/.github/workflows/set-msrv.yml@master
     with:
-        # Crate supports MSRV 1.41 without `oid` feature. We test true MSRV
-        # in the `test-msrv` job.
         msrv: 1.57.0
 
   build:
@@ -78,7 +76,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.51.0 # 1.41-1.50 `--features` can't be used inside virtual manifest
+          - 1.57.0
           - stable
         target:
           - aarch64-unknown-linux-gnu
@@ -99,17 +97,3 @@ jobs:
           package: ${{ github.workflow }}
           target: ${{ matrix.target }}
           features: ${{ matrix.features }}
-
-  # TODO: remove on MSRV bump to 1.57 or higher
-  test-msrv:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: RustCrypto/actions/cargo-cache@master
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: 1.41.0
-          override: true
-      - run: cargo test --no-default-features
-      - run: cargo test
diff --git a/.github/workflows/shabal.yml b/.github/workflows/shabal.yml
index e9a059d68..9e412d384 100644
--- a/.github/workflows/shabal.yml
+++ b/.github/workflows/shabal.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -49,7 +49,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/sm3.yml b/.github/workflows/sm3.yml
index 9ae65d354..49dfc218b 100644
--- a/.github/workflows/sm3.yml
+++ b/.github/workflows/sm3.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -49,7 +49,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/streebog.yml b/.github/workflows/streebog.yml
index dfdb4c522..52abfdd8a 100644
--- a/.github/workflows/streebog.yml
+++ b/.github/workflows/streebog.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -49,7 +49,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          #- 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v3
@@ -63,17 +63,3 @@ jobs:
       - run: cargo test --no-default-features
       - run: cargo test
       - run: cargo test --all-features
-
-  # `oid` feature bumps MSRV to 1.57, so we temporarily split this job.
-  test-msrv:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: RustCrypto/actions/cargo-cache@master
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: 1.41.0
-          override: true
-      - run: cargo test --no-default-features
-      - run: cargo test
diff --git a/.github/workflows/tiger.yml b/.github/workflows/tiger.yml
index d4c302703..49d077f56 100644
--- a/.github/workflows/tiger.yml
+++ b/.github/workflows/tiger.yml
@@ -26,7 +26,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -52,7 +52,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/whirlpool.yml b/.github/workflows/whirlpool.yml
index 049094070..41ab6ef08 100644
--- a/.github/workflows/whirlpool.yml
+++ b/.github/workflows/whirlpool.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -49,7 +49,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.41.0 # MSRV
+          - 1.57.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v3
diff --git a/Cargo.lock b/Cargo.lock
index d851c17b4..56d9eb367 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,12 +2,27 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "belt-block"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a1be3fcfd5950762b6ac3f929b7ac65f31b35afee94e17f6fcadd58ee47abee"
+
+[[package]]
+name = "belt-hash"
+version = "0.2.0"
+dependencies = [
+ "belt-block",
+ "digest",
+ "hex-literal 0.3.4",
+]
+
 [[package]]
 name = "blake2"
-version = "0.10.6"
+version = "0.11.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
 ]
 
 [[package]]
@@ -18,10 +33,11 @@ checksum = "847495c209977a90e8aad588b959d0ca9f5dc228096d29a6bd3defd53f35eaec"
 
 [[package]]
 name = "block-buffer"
-version = "0.10.3"
+version = "0.11.0-pre"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "69cce20737498f97b993470a6e536b8523f0af7892a4f928cceb1ac5e52ebe7e"
+checksum = "23b6a33d658e9ef24ba0c4566d3d023d7978ca2ea3efb65e4eacd4586695892b"
 dependencies = [
+ "crypto-common",
  "generic-array",
 ]
 
@@ -54,9 +70,9 @@ dependencies = [
 
 [[package]]
 name = "crypto-common"
-version = "0.1.6"
+version = "0.2.0-pre"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
+checksum = "6faaa83e7700e0832cbbf84854d4c356270526907d9b14fab927fc7a9b5befb8"
 dependencies = [
  "generic-array",
  "typenum",
@@ -64,9 +80,9 @@ dependencies = [
 
 [[package]]
 name = "digest"
-version = "0.10.6"
+version = "0.11.0-pre"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8168378f4e5023e7218c89c891c0fd8ecdb5e5e4f18cb78f38cf245dd021e76f"
+checksum = "1f2e47350a84ef81587a050177f84af69defbf2bee70bdfb92b500dbbd247e97"
 dependencies = [
  "blobby",
  "block-buffer",
@@ -77,10 +93,10 @@ dependencies = [
 
 [[package]]
 name = "fsb"
-version = "0.1.3"
+version = "0.2.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
  "whirlpool",
 ]
 
@@ -96,18 +112,18 @@ dependencies = [
 
 [[package]]
 name = "gost94"
-version = "0.10.4"
+version = "0.11.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
 ]
 
 [[package]]
 name = "groestl"
-version = "0.10.1"
+version = "0.11.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
 ]
 
 [[package]]
@@ -120,6 +136,12 @@ dependencies = [
  "proc-macro-hack",
 ]
 
+[[package]]
+name = "hex-literal"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ebdb29d2ea9ed0083cd8cece49bbd968021bd99b0849edb4a9a7ee0fdf6a4e0"
+
 [[package]]
 name = "hex-literal-impl"
 version = "0.2.3"
@@ -131,10 +153,10 @@ dependencies = [
 
 [[package]]
 name = "k12"
-version = "0.2.1"
+version = "0.3.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
 ]
 
 [[package]]
@@ -154,27 +176,27 @@ checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8"
 
 [[package]]
 name = "md-5"
-version = "0.10.5"
+version = "0.11.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
  "md5-asm",
 ]
 
 [[package]]
 name = "md2"
-version = "0.10.2"
+version = "0.11.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
 ]
 
 [[package]]
 name = "md4"
-version = "0.10.2"
+version = "0.11.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
 ]
 
 [[package]]
@@ -194,20 +216,20 @@ checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
 
 [[package]]
 name = "ripemd"
-version = "0.1.3"
+version = "0.2.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
 ]
 
 [[package]]
 name = "sha1"
-version = "0.10.5"
+version = "0.11.0"
 dependencies = [
  "cfg-if",
  "cpufeatures",
  "digest",
- "hex-literal",
+ "hex-literal 0.2.2",
  "sha1-asm",
 ]
 
@@ -222,12 +244,12 @@ dependencies = [
 
 [[package]]
 name = "sha2"
-version = "0.10.6"
+version = "0.11.0"
 dependencies = [
  "cfg-if",
  "cpufeatures",
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
  "sha2-asm",
 ]
 
@@ -242,35 +264,35 @@ dependencies = [
 
 [[package]]
 name = "sha3"
-version = "0.10.6"
+version = "0.11.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
  "keccak",
 ]
 
 [[package]]
 name = "shabal"
-version = "0.4.1"
+version = "0.5.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
 ]
 
 [[package]]
 name = "sm3"
-version = "0.4.1"
+version = "0.5.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
 ]
 
 [[package]]
 name = "streebog"
-version = "0.10.2"
+version = "0.11.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
 ]
 
 [[package]]
@@ -281,10 +303,10 @@ checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
 
 [[package]]
 name = "tiger"
-version = "0.2.1"
+version = "0.3.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
 ]
 
 [[package]]
@@ -301,10 +323,10 @@ checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
 name = "whirlpool"
-version = "0.10.4"
+version = "0.11.0"
 dependencies = [
  "digest",
- "hex-literal",
+ "hex-literal 0.3.4",
  "whirlpool-asm",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index beee3a843..947808030 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,8 +1,7 @@
 [workspace]
-# This causes issues like https://github.com/RustCrypto/hashes/issues/396
-# Do not uncomment it until MSRV is bumped to 1.51 or higher.
-# resolver = "2"
+resolver = "2"
 members = [
+    "belt-hash",
     "blake2",
     "fsb",
     "gost94",
@@ -21,7 +20,6 @@ members = [
     "tiger",
     "whirlpool",
 ]
-exclude = ["belt-hash"]
 
 [profile.dev]
 opt-level = 2
diff --git a/README.md b/README.md
index 5a255d21a..e8e0d97ca 100644
--- a/README.md
+++ b/README.md
@@ -14,23 +14,23 @@ Additionally all crates do not require the standard library (i.e. `no_std` capab
 | Algorithm | Crate | Crates.io | Documentation | MSRV | [Security] |
 |-----------|-------|:---------:|:-------------:|:----:|:----------:|
 | [BelT] hash | [`belt-hash`] | [![crates.io](https://img.shields.io/crates/v/belt-hash.svg)](https://crates.io/crates/belt-hash) | [![Documentation](https://docs.rs/belt-hash/badge.svg)](https://docs.rs/belt-hash) | ![MSRV 1.57][msrv-1.57] | :green_heart: |
-| [BLAKE2] | [`blake2`] | [![crates.io](https://img.shields.io/crates/v/blake2.svg)](https://crates.io/crates/blake2) | [![Documentation](https://docs.rs/blake2/badge.svg)](https://docs.rs/blake2) | ![MSRV 1.41][msrv-1.41] | :green_heart: |
-| [FSB] | [`fsb`] | [![crates.io](https://img.shields.io/crates/v/fsb.svg)](https://crates.io/crates/fsb) | [![Documentation](https://docs.rs/fsb/badge.svg)](https://docs.rs/fsb) | ![MSRV 1.41][msrv-1.41] | :green_heart: |
-| [GOST R 34.11-94][GOST94] | [`gost94`] | [![crates.io](https://img.shields.io/crates/v/gost94.svg)](https://crates.io/crates/gost94) | [![Documentation](https://docs.rs/gost94/badge.svg)](https://docs.rs/gost94) | ![MSRV 1.41][msrv-1.41] | :yellow_heart: |
-| [Grøstl] (Groestl) | [`groestl`] | [![crates.io](https://img.shields.io/crates/v/groestl.svg)](https://crates.io/crates/groestl) | [![Documentation](https://docs.rs/groestl/badge.svg)](https://docs.rs/groestl) | ![MSRV 1.41][msrv-1.41] | :green_heart: |
-| [KangarooTwelve] | [`k12`] | [![crates.io](https://img.shields.io/crates/v/k12.svg)](https://crates.io/crates/k12) | [![Documentation](https://docs.rs/k12/badge.svg)](https://docs.rs/k12) | ![MSRV 1.41][msrv-1.41] | :green_heart: |
-| [MD2] | [`md2`] | [![crates.io](https://img.shields.io/crates/v/md2.svg)](https://crates.io/crates/md2) | [![Documentation](https://docs.rs/md2/badge.svg)](https://docs.rs/md2) | ![MSRV 1.41][msrv-1.41] | :broken_heart: |
-| [MD4] | [`md4`] | [![crates.io](https://img.shields.io/crates/v/md4.svg)](https://crates.io/crates/md4) | [![Documentation](https://docs.rs/md4/badge.svg)](https://docs.rs/md4) | ![MSRV 1.41][msrv-1.41] | :broken_heart: |
-| [MD5] | [`md5`] [:exclamation:] | [![crates.io](https://img.shields.io/crates/v/md-5.svg)](https://crates.io/crates/md-5) | [![Documentation](https://docs.rs/md-5/badge.svg)](https://docs.rs/md-5) | ![MSRV 1.41][msrv-1.41] | :broken_heart: |
-| [RIPEMD] | [`ripemd`] | [![crates.io](https://img.shields.io/crates/v/ripemd.svg)](https://crates.io/crates/ripemd) | [![Documentation](https://docs.rs/ripemd/badge.svg)](https://docs.rs/ripemd) | ![MSRV 1.41][msrv-1.41] | :green_heart: |
-| [SHA-1] | [`sha1`] | [![crates.io](https://img.shields.io/crates/v/sha1.svg)](https://crates.io/crates/sha1) | [![Documentation](https://docs.rs/sha1/badge.svg)](https://docs.rs/sha1) | ![MSRV 1.41][msrv-1.41] | :broken_heart: |
-| [SHA-2] | [`sha2`] | [![crates.io](https://img.shields.io/crates/v/sha2.svg)](https://crates.io/crates/sha2) | [![Documentation](https://docs.rs/sha2/badge.svg)](https://docs.rs/sha2) | ![MSRV 1.41][msrv-1.41] | :green_heart: |
-| [SHA-3] (Keccak) | [`sha3`] | [![crates.io](https://img.shields.io/crates/v/sha3.svg)](https://crates.io/crates/sha3) | [![Documentation](https://docs.rs/sha3/badge.svg)](https://docs.rs/sha3) | ![MSRV 1.41][msrv-1.41] | :green_heart: |
-| [SHABAL] | [`shabal`] | [![crates.io](https://img.shields.io/crates/v/shabal.svg)](https://crates.io/crates/shabal) | [![Documentation](https://docs.rs/shabal/badge.svg)](https://docs.rs/shabal) | ![MSRV 1.41][msrv-1.41] | :green_heart: |
-| [SM3] (OSCCA GM/T 0004-2012) | [`sm3`] | [![crates.io](https://img.shields.io/crates/v/sm3.svg)](https://crates.io/crates/sm3) | [![Documentation](https://docs.rs/sm3/badge.svg)](https://docs.rs/sm3) | ![MSRV 1.41][msrv-1.41] | :green_heart: |
-| [Streebog] (GOST R 34.11-2012) | [`streebog`] | [![crates.io](https://img.shields.io/crates/v/streebog.svg)](https://crates.io/crates/streebog) | [![Documentation](https://docs.rs/streebog/badge.svg)](https://docs.rs/streebog) | ![MSRV 1.41][msrv-1.41] | :yellow_heart: |
-| [Tiger] | [`tiger`] | [![crates.io](https://img.shields.io/crates/v/tiger.svg)](https://crates.io/crates/tiger) | [![Documentation](https://docs.rs/tiger/badge.svg)](https://docs.rs/tiger) | ![MSRV 1.41][msrv-1.41] | :green_heart: |
-| [Whirlpool] | [`whirlpool`] | [![crates.io](https://img.shields.io/crates/v/whirlpool.svg)](https://crates.io/crates/whirlpool) | [![Documentation](https://docs.rs/whirlpool/badge.svg)](https://docs.rs/whirlpool) | ![MSRV 1.41][msrv-1.41] | :green_heart: |
+| [BLAKE2] | [`blake2`] | [![crates.io](https://img.shields.io/crates/v/blake2.svg)](https://crates.io/crates/blake2) | [![Documentation](https://docs.rs/blake2/badge.svg)](https://docs.rs/blake2) | ![MSRV 1.57][msrv-1.57] | :green_heart: |
+| [FSB] | [`fsb`] | [![crates.io](https://img.shields.io/crates/v/fsb.svg)](https://crates.io/crates/fsb) | [![Documentation](https://docs.rs/fsb/badge.svg)](https://docs.rs/fsb) | ![MSRV 1.57][msrv-1.57] | :green_heart: |
+| [GOST R 34.11-94][GOST94] | [`gost94`] | [![crates.io](https://img.shields.io/crates/v/gost94.svg)](https://crates.io/crates/gost94) | [![Documentation](https://docs.rs/gost94/badge.svg)](https://docs.rs/gost94) | ![MSRV 1.57][msrv-1.57] | :yellow_heart: |
+| [Grøstl] (Groestl) | [`groestl`] | [![crates.io](https://img.shields.io/crates/v/groestl.svg)](https://crates.io/crates/groestl) | [![Documentation](https://docs.rs/groestl/badge.svg)](https://docs.rs/groestl) | ![MSRV 1.57][msrv-1.57] | :green_heart: |
+| [KangarooTwelve] | [`k12`] | [![crates.io](https://img.shields.io/crates/v/k12.svg)](https://crates.io/crates/k12) | [![Documentation](https://docs.rs/k12/badge.svg)](https://docs.rs/k12) | ![MSRV 1.57][msrv-1.57] | :green_heart: |
+| [MD2] | [`md2`] | [![crates.io](https://img.shields.io/crates/v/md2.svg)](https://crates.io/crates/md2) | [![Documentation](https://docs.rs/md2/badge.svg)](https://docs.rs/md2) | ![MSRV 1.57][msrv-1.57] | :broken_heart: |
+| [MD4] | [`md4`] | [![crates.io](https://img.shields.io/crates/v/md4.svg)](https://crates.io/crates/md4) | [![Documentation](https://docs.rs/md4/badge.svg)](https://docs.rs/md4) | ![MSRV 1.57][msrv-1.57] | :broken_heart: |
+| [MD5] | [`md5`] [:exclamation:] | [![crates.io](https://img.shields.io/crates/v/md-5.svg)](https://crates.io/crates/md-5) | [![Documentation](https://docs.rs/md-5/badge.svg)](https://docs.rs/md-5) | ![MSRV 1.57][msrv-1.57] | :broken_heart: |
+| [RIPEMD] | [`ripemd`] | [![crates.io](https://img.shields.io/crates/v/ripemd.svg)](https://crates.io/crates/ripemd) | [![Documentation](https://docs.rs/ripemd/badge.svg)](https://docs.rs/ripemd) | ![MSRV 1.57][msrv-1.57] | :green_heart: |
+| [SHA-1] | [`sha1`] | [![crates.io](https://img.shields.io/crates/v/sha1.svg)](https://crates.io/crates/sha1) | [![Documentation](https://docs.rs/sha1/badge.svg)](https://docs.rs/sha1) | ![MSRV 1.57][msrv-1.57] | :broken_heart: |
+| [SHA-2] | [`sha2`] | [![crates.io](https://img.shields.io/crates/v/sha2.svg)](https://crates.io/crates/sha2) | [![Documentation](https://docs.rs/sha2/badge.svg)](https://docs.rs/sha2) | ![MSRV 1.57][msrv-1.57] | :green_heart: |
+| [SHA-3] (Keccak) | [`sha3`] | [![crates.io](https://img.shields.io/crates/v/sha3.svg)](https://crates.io/crates/sha3) | [![Documentation](https://docs.rs/sha3/badge.svg)](https://docs.rs/sha3) | ![MSRV 1.57][msrv-1.57] | :green_heart: |
+| [SHABAL] | [`shabal`] | [![crates.io](https://img.shields.io/crates/v/shabal.svg)](https://crates.io/crates/shabal) | [![Documentation](https://docs.rs/shabal/badge.svg)](https://docs.rs/shabal) | ![MSRV 1.57][msrv-1.57] | :green_heart: |
+| [SM3] (OSCCA GM/T 0004-2012) | [`sm3`] | [![crates.io](https://img.shields.io/crates/v/sm3.svg)](https://crates.io/crates/sm3) | [![Documentation](https://docs.rs/sm3/badge.svg)](https://docs.rs/sm3) | ![MSRV 1.57][msrv-1.57] | :green_heart: |
+| [Streebog] (GOST R 34.11-2012) | [`streebog`] | [![crates.io](https://img.shields.io/crates/v/streebog.svg)](https://crates.io/crates/streebog) | [![Documentation](https://docs.rs/streebog/badge.svg)](https://docs.rs/streebog) | ![MSRV 1.57][msrv-1.57] | :yellow_heart: |
+| [Tiger] | [`tiger`] | [![crates.io](https://img.shields.io/crates/v/tiger.svg)](https://crates.io/crates/tiger) | [![Documentation](https://docs.rs/tiger/badge.svg)](https://docs.rs/tiger) | ![MSRV 1.57][msrv-1.57] | :green_heart: |
+| [Whirlpool] | [`whirlpool`] | [![crates.io](https://img.shields.io/crates/v/whirlpool.svg)](https://crates.io/crates/whirlpool) | [![Documentation](https://docs.rs/whirlpool/badge.svg)](https://docs.rs/whirlpool) | ![MSRV 1.57][msrv-1.57] | :green_heart: |
 
 NOTE: the [`blake3`] crate implements the `digest` traits used by the rest of the hashes in this repository, but is maintained by the BLAKE3 team.
 
@@ -230,7 +230,6 @@ Unless you explicitly state otherwise, any contribution intentionally submitted
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
 [deps-image]: https://deps.rs/repo/github/RustCrypto/hashes/status.svg
 [deps-link]: https://deps.rs/repo/github/RustCrypto/hashes
-[msrv-1.41]: https://img.shields.io/badge/rustc-1.41.0+-blue.svg
 [msrv-1.57]: https://img.shields.io/badge/rustc-1.57.0+-blue.svg
 
 [//]: # (crates)
diff --git a/belt-hash/Cargo.toml b/belt-hash/Cargo.toml
index 14891c809..bc3a7cc21 100644
--- a/belt-hash/Cargo.toml
+++ b/belt-hash/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "belt-hash"
-version = "0.1.0"
+version = "0.2.0"
 description = "BelT hash function (STB 34.101.31-2020)"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
@@ -13,18 +13,14 @@ keywords = ["crypto", "belt", "stb", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.4"
+digest = "0.11.0-pre"
 belt-block = { version = "0.1.1", default-features = false }
 
 [dev-dependencies]
-digest = { version = "0.10.4", features = ["dev"] }
+digest = { version = "0.11.0-pre", features = ["dev"] }
 hex-literal = "0.3.3"
 
 [features]
-default = ["std"]
+default = ["std", "oid"]
 std = ["digest/std"]
-oid = ["digest/oid"]
-
-# TODO: remove when crate will be part of the root workspace
-[profile.dev]
-opt-level = 2
+oid = ["digest/oid"] # Enable OID support
diff --git a/belt-hash/src/lib.rs b/belt-hash/src/lib.rs
index 925ca6094..7b618f622 100644
--- a/belt-hash/src/lib.rs
+++ b/belt-hash/src/lib.rs
@@ -111,7 +111,7 @@ impl FixedOutputCore for BeltHashCore {
         let pos = buffer.get_pos();
         if pos != 0 {
             let block = buffer.pad_with_zeros();
-            self.compress_block(block);
+            self.compress_block(&block);
         }
         let bs = Self::BlockSize::USIZE as u128;
         let r = encode_r(8 * ((bs * self.r) + pos as u128));
diff --git a/belt-hash/tests/mod.rs b/belt-hash/tests/mod.rs
index d8259a128..5b6e7de61 100644
--- a/belt-hash/tests/mod.rs
+++ b/belt-hash/tests/mod.rs
@@ -11,10 +11,11 @@ fn belt_rand() {
     let mut h = BeltHash::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
+        h.finalize(),
         hex!(
             "a45053f80827d530008198c8185aa507"
             "403b4a21f591579f07c34358e5991754"
-        )[..]
+        )
+        .into()
     );
 }
diff --git a/blake2/Cargo.toml b/blake2/Cargo.toml
index 11c00ac01..6f45c1341 100644
--- a/blake2/Cargo.toml
+++ b/blake2/Cargo.toml
@@ -1,22 +1,23 @@
 [package]
 name = "blake2"
-version = "0.10.6"
+version = "0.11.0"
 description = "BLAKE2 hash functions"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/blake2"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "blake2", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = { version = "0.10.3", features = ["mac"] }
+digest = { version = "0.11.0-pre", features = ["mac"] }
 
 [dev-dependencies]
-digest = { version = "0.10.3", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3.3"
 
 [features]
 default = ["std"]
diff --git a/blake2/README.md b/blake2/README.md
index 913b729e9..139c390f7 100644
--- a/blake2/README.md
+++ b/blake2/README.md
@@ -13,7 +13,7 @@ Pure Rust implementation of the [BLAKE2 hash function][1] family.
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -47,7 +47,7 @@ dual licensed as above, without any additional terms or conditions.
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [build-image]: https://github.com/RustCrypto/hashes/workflows/blake2/badge.svg?branch=master
 [build-link]: https://github.com/RustCrypto/hashes/actions?query=workflow%3Ablake2
 
diff --git a/blake2/src/macros.rs b/blake2/src/macros.rs
index 917a212c8..fc4ec886a 100644
--- a/blake2/src/macros.rs
+++ b/blake2/src/macros.rs
@@ -224,7 +224,7 @@ macro_rules! blake2_impl {
             ) {
                 self.t += buffer.get_pos() as u64;
                 let block = buffer.pad_with_zeros();
-                self.finalize_with_flag(block, 0, out);
+                self.finalize_with_flag(&block, 0, out);
             }
         }
 
diff --git a/blake2/tests/mac.rs b/blake2/tests/mac.rs
index 97fbc9d70..fe44ac6d7 100644
--- a/blake2/tests/mac.rs
+++ b/blake2/tests/mac.rs
@@ -12,11 +12,11 @@ fn blake2b_new_test() {
 
     fn run<T: Mac + KeyInit>(key: &[u8]) {
         const DATA: &[u8] = &[42; 300];
-        let res1 = <T as Mac>::new(GenericArray::from_slice(key))
+        let res1 = T::new(GenericArray::from_slice(key))
             .chain_update(DATA)
             .finalize()
             .into_bytes();
-        let res2 = <T as Mac>::new_from_slice(&key)
+        let res2 = T::new_from_slice(&key)
             .unwrap()
             .chain_update(DATA)
             .finalize()
diff --git a/blake2/tests/persona.rs b/blake2/tests/persona.rs
index 49e6574e9..f4716293d 100644
--- a/blake2/tests/persona.rs
+++ b/blake2/tests/persona.rs
@@ -2,39 +2,39 @@ use blake2::{digest::FixedOutput, Blake2bMac512, Blake2sMac256};
 use hex_literal::hex;
 
 #[test]
-#[rustfmt::skip]
 fn blake2s_persona() {
-    let key= hex!("
-        000102030405060708090a0b0c0d0e0f
-        101112131415161718191a1b1c1d1e1f
-    ");
+    let key = hex!(
+        "000102030405060708090a0b0c0d0e0f"
+        "101112131415161718191a1b1c1d1e1f"
+    );
     let persona = b"personal";
     let ctx = Blake2sMac256::new_with_salt_and_personal(&key, &[], persona).unwrap();
     assert_eq!(
-        ctx.finalize_fixed()[..],
-        hex!("
-            25a4ee63b594aed3f88a971e1877ef70
-            99534f9097291f88fb86c79b5e70d022
-        ")[..],
+        ctx.finalize_fixed(),
+        hex!(
+            "25a4ee63b594aed3f88a971e1877ef70"
+            "99534f9097291f88fb86c79b5e70d022"
+        )
+        .into(),
     );
 }
 
 #[test]
-#[rustfmt::skip]
 fn blake2b_persona() {
-    let key = hex!("
-        000102030405060708090a0b0c0d0e0f
-        101112131415161718191a1b1c1d1e1f
-    ");
+    let key = hex!(
+        "000102030405060708090a0b0c0d0e0f"
+        "101112131415161718191a1b1c1d1e1f"
+    );
     let persona = b"personal";
     let ctx = Blake2bMac512::new_with_salt_and_personal(&key, &[], persona).unwrap();
     assert_eq!(
-        ctx.finalize_fixed()[..],
-        hex!("
-            03de3b295dcfc3b25b05abb09bc95fe3
-            e9ff3073638badc68101d1e42019d077
-            1dd07525a3aae8318e92c5e5d967ba92
-            e4810d0021d7bf3b49da0b4b4a8a4e1f
-        ")[..],
+        ctx.finalize_fixed(),
+        hex!(
+            "03de3b295dcfc3b25b05abb09bc95fe3"
+            "e9ff3073638badc68101d1e42019d077"
+            "1dd07525a3aae8318e92c5e5d967ba92"
+            "e4810d0021d7bf3b49da0b4b4a8a4e1f"
+        )
+        .into(),
     );
 }
diff --git a/fsb/Cargo.toml b/fsb/Cargo.toml
index 8e652f3e9..cc24fa590 100644
--- a/fsb/Cargo.toml
+++ b/fsb/Cargo.toml
@@ -1,23 +1,24 @@
 [package]
 name = "fsb"
-version = "0.1.3"
+version = "0.2.0"
 description = "FSB hash function"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/fsb"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "fsb", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.3"
-whirlpool = { version = "0.10.1", path = "../whirlpool", default-features = false }
+digest = "0.11.0-pre"
+whirlpool = { version = "0.11", path = "../whirlpool", default-features = false }
 
 [dev-dependencies]
-digest = { version = "0.10.3", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3.3"
 
 [features]
 default = ["std"]
diff --git a/fsb/README.md b/fsb/README.md
index bff04069c..2cb95e30f 100644
--- a/fsb/README.md
+++ b/fsb/README.md
@@ -13,7 +13,7 @@ Pure Rust implementation of the [FSB hash function][1] family.
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
diff --git a/fsb/tests/mod.rs b/fsb/tests/mod.rs
index 928f1b979..a6edd6366 100644
--- a/fsb/tests/mod.rs
+++ b/fsb/tests/mod.rs
@@ -14,8 +14,8 @@ fn fsb160_rand() {
     let mut h = Fsb160::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("40b7538be5e51978690d1a92fe12a7f25f0a7f08")[..]
+        h.finalize(),
+        hex!("40b7538be5e51978690d1a92fe12a7f25f0a7f08").into(),
     );
 }
 
@@ -24,8 +24,8 @@ fn fsb224_rand() {
     let mut h = Fsb224::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("0ec203ccec7cbf0cadd32e5dc069d0b4215a104c4dad5444944a0d09")[..]
+        h.finalize(),
+        hex!("0ec203ccec7cbf0cadd32e5dc069d0b4215a104c4dad5444944a0d09").into(),
     );
 }
 
@@ -34,35 +34,35 @@ fn fsb256_rand() {
     let mut h = Fsb256::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("eecb42832a2b03bc91beb1a56ddf2973c962b1aeb22f278e9d78a7a8879ebba7")[..]
+        h.finalize(),
+        hex!("eecb42832a2b03bc91beb1a56ddf2973c962b1aeb22f278e9d78a7a8879ebba7").into(),
     );
 }
 
 #[test]
-#[rustfmt::skip]
 fn fsb384_rand() {
     let mut h = Fsb384::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("
-            f17533ed4d4484434715e63bc8e801c9cfe988c38d47d3b4be0409571360aa2f
-            b360b2804c14f606906b323e7901c09e
-        ")[..]
+        h.finalize(),
+        hex!(
+            "f17533ed4d4484434715e63bc8e801c9cfe988c38d47d3b4be0409571360aa2f"
+            "b360b2804c14f606906b323e7901c09e"
+        )
+        .into()
     );
 }
 
 #[test]
-#[rustfmt::skip]
 fn fsb512_rand() {
     let mut h = Fsb512::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("
-            957a7733643e075ab7a3b04607800a6208a26b008bdaee759a3a635bb9b5b708
-            3531725783505468bf438f2a0a96163bbe0775468a11c93db9994c466b2e7d8c
-        ")[..]
+        h.finalize(),
+        hex!(
+            "957a7733643e075ab7a3b04607800a6208a26b008bdaee759a3a635bb9b5b708"
+            "3531725783505468bf438f2a0a96163bbe0775468a11c93db9994c466b2e7d8c"
+        )
+        .into()
     );
 }
diff --git a/gost94/Cargo.toml b/gost94/Cargo.toml
index 19c8472d4..ca554cf02 100644
--- a/gost94/Cargo.toml
+++ b/gost94/Cargo.toml
@@ -1,24 +1,25 @@
 [package]
 name = "gost94"
-version = "0.10.4"
+version = "0.11.0"
 description = "GOST R 34.11-94 hash function"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/gost94"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "gost94", "gost", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.3"
+digest = "0.11.0-pre"
 
 [dev-dependencies]
-digest = { version = "0.10.4", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3"
 
 [features]
-default = ["std"]
+default = ["std", "oid"]
 std = ["digest/std"]
-oid = ["digest/oid"] # Enable OID support. WARNING: Bumps MSRV to 1.57
+oid = ["digest/oid"] # Enable OID support
diff --git a/gost94/README.md b/gost94/README.md
index a1bd9fd98..b86b32d09 100644
--- a/gost94/README.md
+++ b/gost94/README.md
@@ -13,7 +13,7 @@ Pure Rust implementation of the [GOST R 34.11-94 hash function][1].
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -45,7 +45,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/gost94/badge.svg
 [docs-link]: https://docs.rs/gost94/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/gost94/badge.svg?branch=master
diff --git a/groestl/Cargo.toml b/groestl/Cargo.toml
index 463078c1b..fe2de8b65 100644
--- a/groestl/Cargo.toml
+++ b/groestl/Cargo.toml
@@ -1,22 +1,23 @@
 [package]
 name = "groestl"
-version = "0.10.1"
+version = "0.11.0"
 description = "Grøstl hash function"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/groestl"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "groestl", "grostl", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.3"
+digest = "0.11.0-pre"
 
 [dev-dependencies]
-digest = { version = "0.10.3", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3.3"
 
 [features]
 default = ["std"]
diff --git a/groestl/README.md b/groestl/README.md
index b22a23313..f30bb7dfd 100644
--- a/groestl/README.md
+++ b/groestl/README.md
@@ -13,7 +13,7 @@ Pure Rust implementation of the [Grøstl hash function][1].
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -45,7 +45,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/groestl/badge.svg
 [docs-link]: https://docs.rs/groestl/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/groestl/badge.svg?branch=master
diff --git a/groestl/tests/mod.rs b/groestl/tests/mod.rs
index 41a5cf261..e6c4bf1d9 100755
--- a/groestl/tests/mod.rs
+++ b/groestl/tests/mod.rs
@@ -13,8 +13,8 @@ fn groestl224_rand() {
     let mut h = Groestl224::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("2000744c2f85a7fb4733e97da8db00069dd6defa9186dac3461dfeb8")[..]
+        h.finalize(),
+        hex!("2000744c2f85a7fb4733e97da8db00069dd6defa9186dac3461dfeb8").into(),
     );
 }
 
@@ -23,35 +23,35 @@ fn groestl256_rand() {
     let mut h = Groestl256::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("aac71c789678f627a6474605322ae98d1647e47f405d00b1461b90ee5f0cfbc4")[..]
+        h.finalize(),
+        hex!("aac71c789678f627a6474605322ae98d1647e47f405d00b1461b90ee5f0cfbc4").into(),
     );
 }
 
 #[test]
-#[rustfmt::skip]
 fn groestl384_rand() {
     let mut h = Groestl384::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("
-            dab78eea895a6dde0c53dc02fc79c7986f5d6811618ca6e5922f01e8aca9bfeb
-            20ed5eda4130bf0ab474ac0b6f0290f8
-        ")[..]
+        h.finalize(),
+        hex!(
+            "dab78eea895a6dde0c53dc02fc79c7986f5d6811618ca6e5922f01e8aca9bfeb"
+            "20ed5eda4130bf0ab474ac0b6f0290f8"
+        )
+        .into(),
     );
 }
 
 #[test]
-#[rustfmt::skip]
 fn groestl512_rand() {
     let mut h = Groestl512::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("
-            7e4d8257c217c7ae59331126e0f984f145e9789862de7c099675ac29e46424ef
-            e93543974fa7113190d492f607f629a03db35ec5551abcb2785ae145fd3c543f
-        ")[..],
+        h.finalize(),
+        hex!(
+            "7e4d8257c217c7ae59331126e0f984f145e9789862de7c099675ac29e46424ef"
+            "e93543974fa7113190d492f607f629a03db35ec5551abcb2785ae145fd3c543f"
+        )
+        .into(),
     );
 }
diff --git a/k12/Cargo.toml b/k12/Cargo.toml
index ada20f487..58373e54c 100644
--- a/k12/Cargo.toml
+++ b/k12/Cargo.toml
@@ -1,22 +1,23 @@
 [package]
 name = "k12"
-version = "0.2.1"
+version = "0.3.0"
 description = "Experimental pure Rust implementation of the KangarooTwelve hash function"
 authors = ["Diggory Hardy <github1@dhardy.name>"]
 license = "Apache-2.0 OR MIT"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/k12"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = { version = "0.10.3", features = ["alloc"] }
+digest = { version = "0.11.0-pre", features = ["alloc"] }
 
 [dev-dependencies]
-digest = { version = "0.10.3", features = ["alloc", "dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["alloc", "dev"] }
+hex-literal = "0.3.3"
 
 [features]
 default = ["std"]
diff --git a/k12/README.md b/k12/README.md
index 844711ff4..7ffb9a6cf 100644
--- a/k12/README.md
+++ b/k12/README.md
@@ -13,7 +13,7 @@ function (XOF).
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -45,7 +45,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/k12/badge.svg
 [docs-link]: https://docs.rs/k12/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/k12/badge.svg?branch=master
diff --git a/k12/tests/mod.rs b/k12/tests/mod.rs
index bd27c4464..cd40e54d3 100644
--- a/k12/tests/mod.rs
+++ b/k12/tests/mod.rs
@@ -12,7 +12,6 @@ fn digest_and_box(data: &[u8], n: usize) -> Box<[u8]> {
 }
 
 #[test]
-#[rustfmt::skip]
 fn empty() {
     // Source: reference paper
     assert_eq!(
@@ -22,10 +21,10 @@ fn empty() {
 
     assert_eq!(
         digest_and_box(b"", 64)[..],
-        hex!("
-            1ac2d450fc3b4205d19da7bfca1b37513c0803577ac7167f06fe2ce1f0ef39e5
-            4269c056b8c82e48276038b6d292966cc07a3d4645272e31ff38508139eb0a71
-        ")[..]
+        hex!(
+            "1ac2d450fc3b4205d19da7bfca1b37513c0803577ac7167f06fe2ce1f0ef39e5"
+            "4269c056b8c82e48276038b6d292966cc07a3d4645272e31ff38508139eb0a71"
+        )[..]
     );
 
     assert_eq!(
diff --git a/md2/Cargo.toml b/md2/Cargo.toml
index 234c4ada2..715c0ef69 100644
--- a/md2/Cargo.toml
+++ b/md2/Cargo.toml
@@ -1,24 +1,25 @@
 [package]
 name = "md2"
-version = "0.10.2"
+version = "0.11.0"
 license = "MIT OR Apache-2.0"
 authors = ["RustCrypto Developers"]
 description = "MD2 hash function"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/md2"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "md2", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.4"
+digest = "0.11.0-pre"
 
 [dev-dependencies]
-digest = { version = "0.10.3", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3"
 
 [features]
-default = ["std"]
+default = ["std", "oid"]
 std = ["digest/std"]
 oid = ["digest/oid"]
diff --git a/md2/README.md b/md2/README.md
index 877765562..f6a6d209d 100644
--- a/md2/README.md
+++ b/md2/README.md
@@ -13,7 +13,7 @@ Pure Rust implementation of the [MD2 hash function][1].
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -45,7 +45,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/md2/badge.svg
 [docs-link]: https://docs.rs/md2/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/md2/badge.svg?branch=master
diff --git a/md2/src/lib.rs b/md2/src/lib.rs
index 9ab2750b1..773bbb878 100644
--- a/md2/src/lib.rs
+++ b/md2/src/lib.rs
@@ -109,10 +109,10 @@ impl FixedOutputCore for Md2Core {
     fn finalize_fixed_core(&mut self, buffer: &mut Buffer<Self>, out: &mut Output<Self>) {
         let pos = buffer.get_pos();
         let rem = buffer.remaining() as u8;
-        let block = buffer.pad_with_zeros();
+        let mut block = buffer.pad_with_zeros();
         block[pos..].iter_mut().for_each(|b| *b = rem);
 
-        self.compress(block);
+        self.compress(&block);
         let checksum = self.checksum;
         self.compress(&checksum);
         out.copy_from_slice(&self.x[0..16]);
diff --git a/md4/Cargo.toml b/md4/Cargo.toml
index 78faeb71d..58217b1d6 100644
--- a/md4/Cargo.toml
+++ b/md4/Cargo.toml
@@ -1,24 +1,25 @@
 [package]
 name = "md4"
-version = "0.10.2"
+version = "0.11.0"
 description = "MD4 hash function"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/md4"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "md4", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.3"
+digest = "0.11.0-pre"
 
 [dev-dependencies]
-digest = { version = "0.10.4", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3"
 
 [features]
-default = ["std"]
+default = ["std", "oid"]
 std = ["digest/std"]
-oid = ["digest/oid"] # Enable OID support. WARNING: Bumps MSRV to 1.57
+oid = ["digest/oid"] # Enable OID support
diff --git a/md4/README.md b/md4/README.md
index 867b69e5e..ba04d872f 100644
--- a/md4/README.md
+++ b/md4/README.md
@@ -13,7 +13,7 @@ Pure Rust implementation of the [MD4 hash function][1].
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -45,7 +45,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/md4/badge.svg
 [docs-link]: https://docs.rs/md4/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/md4/badge.svg?branch=master
diff --git a/md5/Cargo.toml b/md5/Cargo.toml
index 48fd5aff7..5bb60d8a3 100644
--- a/md5/Cargo.toml
+++ b/md5/Cargo.toml
@@ -1,11 +1,12 @@
 [package]
 name = "md-5"
-version = "0.10.5"
+version = "0.11.0"
 description = "MD5 hash function"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/md-5"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "md5", "hash", "digest"]
@@ -15,17 +16,17 @@ categories = ["cryptography", "no-std"]
 name = "md5"
 
 [dependencies]
-digest = "0.10.4"
+digest = "0.11.0-pre"
 
 [target.'cfg(any(target_arch = "x86", target_arch = "x86_64"))'.dependencies]
 md5-asm = { version = "0.5", optional = true }
 
 [dev-dependencies]
-digest = { version = "0.10.4", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3"
 
 [features]
-default = ["std"]
+default = ["std", "oid"]
 std = ["digest/std"]
 asm = ["md5-asm"] # WARNING: this feature SHOULD NOT be enabled by library crates
-oid = ["digest/oid"] # Enable OID support. WARNING: Bumps MSRV to 1.57
+oid = ["digest/oid"] # Enable OID support
diff --git a/md5/README.md b/md5/README.md
index 56af1749b..7d3358401 100644
--- a/md5/README.md
+++ b/md5/README.md
@@ -26,7 +26,7 @@ including HMAC-MD5.
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -58,7 +58,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/md-5/badge.svg
 [docs-link]: https://docs.rs/md-5/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/md5/badge.svg?branch=master
diff --git a/ripemd/Cargo.toml b/ripemd/Cargo.toml
index 3e8394d04..d30f95fbc 100644
--- a/ripemd/Cargo.toml
+++ b/ripemd/Cargo.toml
@@ -1,24 +1,25 @@
 [package]
 name = "ripemd"
-version = "0.1.3"
+version = "0.2.0"
 description = "Pure Rust implementation of the RIPEMD hash functions"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/ripemd"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "ripemd", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.4"
+digest = "0.11.0-pre"
 
 [dev-dependencies]
-digest = { version = "0.10.4", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3.3"
 
 [features]
-default = ["std"]
+default = ["std", "oid"]
 std = ["digest/std"]
-oid = ["digest/oid"] # Enable OID support. WARNING: Bumps MSRV to 1.57
+oid = ["digest/oid"] # Enable OID support
diff --git a/ripemd/README.md b/ripemd/README.md
index c09878fe5..62bf9f389 100644
--- a/ripemd/README.md
+++ b/ripemd/README.md
@@ -13,7 +13,7 @@ Pure Rust implementation of the [RIPEMD] hash functions.
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -45,7 +45,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/ripemd/badge.svg
 [docs-link]: https://docs.rs/ripemd/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/ripemd/badge.svg?branch=master
diff --git a/ripemd/tests/mod.rs b/ripemd/tests/mod.rs
index 0dd16b0cf..fb05221da 100644
--- a/ripemd/tests/mod.rs
+++ b/ripemd/tests/mod.rs
@@ -20,7 +20,7 @@ fn ripemd128_1mil_a() {
     }
     assert_eq!(
         h.finalize(),
-        hex!("4a7f5723f954eba1216c9d8f6320431f").into()
+        hex!("4a7f5723f954eba1216c9d8f6320431f").into(),
     );
 }
 
@@ -29,8 +29,8 @@ fn ripemd128_rand() {
     let mut h = Ripemd128::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("01eb52529bcec15bd0cb4040ec998632")[..]
+        h.finalize(),
+        hex!("01eb52529bcec15bd0cb4040ec998632").into(),
     );
 }
 
@@ -43,7 +43,7 @@ fn ripemd160_1mil_a() {
     }
     assert_eq!(
         h.finalize(),
-        hex!("52783243c1697bdbe16d37f97f68f08325dc1528").into()
+        hex!("52783243c1697bdbe16d37f97f68f08325dc1528").into(),
     );
 }
 
@@ -52,8 +52,8 @@ fn ripemd160_rand() {
     let mut h = Ripemd160::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("bcd8c672932125776af3c60eeeb58bbaf206f386")[..]
+        h.finalize(),
+        hex!("bcd8c672932125776af3c60eeeb58bbaf206f386").into(),
     );
 }
 
@@ -66,7 +66,7 @@ fn ripemd256_1mil_a() {
     }
     assert_eq!(
         h.finalize(),
-        hex!("ac953744e10e31514c150d4d8d7b677342e33399788296e43ae4850ce4f97978").into()
+        hex!("ac953744e10e31514c150d4d8d7b677342e33399788296e43ae4850ce4f97978").into(),
     );
 }
 
@@ -75,13 +75,12 @@ fn ripemd256_rand() {
     let mut h = Ripemd256::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("6492ffe075896441b737900bdf58fc960e77477e42a2a61bc02c66fd689b69d0")[..]
+        h.finalize(),
+        hex!("6492ffe075896441b737900bdf58fc960e77477e42a2a61bc02c66fd689b69d0").into(),
     );
 }
 
 #[test]
-#[rustfmt::skip]
 fn ripemd320_1mil_a() {
     let mut h = Ripemd320::new();
     let buf = [b'a'; 1000];
@@ -90,23 +89,24 @@ fn ripemd320_1mil_a() {
     }
     assert_eq!(
         h.finalize(),
-        hex!("
-            bdee37f4371e20646b8b0d862dda16292ae36f40
-            965e8c8509e63d1dbddecc503e2b63eb9245bb66
-        ").into()
+        hex!(
+            "bdee37f4371e20646b8b0d862dda16292ae36f40"
+            "965e8c8509e63d1dbddecc503e2b63eb9245bb66"
+        )
+        .into(),
     );
 }
 
 #[test]
-#[rustfmt::skip]
 fn ripemd320_rand() {
     let mut h = Ripemd320::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("
-            3a905312162c5c173639f6cc1cdf51d14e8bda02
-            865767592e26d9343fbec348ce55ce39b4b4b56f
-        ")[..]
+        h.finalize(),
+        hex!(
+            "3a905312162c5c173639f6cc1cdf51d14e8bda02"
+            "865767592e26d9343fbec348ce55ce39b4b4b56f"
+        )
+        .into()
     );
 }
diff --git a/sha1/Cargo.toml b/sha1/Cargo.toml
index 8ff801508..27a5040e2 100644
--- a/sha1/Cargo.toml
+++ b/sha1/Cargo.toml
@@ -1,18 +1,19 @@
 [package]
 name = "sha1"
-version = "0.10.5"
+version = "0.11.0"
 description = "SHA-1 hash function"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/sha1"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "sha1", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.4"
+digest = "0.11.0-pre"
 cfg-if = "1.0"
 
 [target.'cfg(any(target_arch = "aarch64", target_arch = "x86", target_arch = "x86_64"))'.dependencies]
@@ -20,13 +21,13 @@ cpufeatures = "0.2"
 sha1-asm = { version = "0.5", optional = true }
 
 [dev-dependencies]
-digest = { version = "0.10.4", features = ["dev"] }
+digest = { version = "0.11.0-pre", features = ["dev"] }
 hex-literal = "0.2.2"
 
 [features]
-default = ["std"]
+default = ["std", "oid"]
 std = ["digest/std"]
-oid = ["digest/oid"] # Enable OID support. WARNING: Bumps MSRV to 1.57
+oid = ["digest/oid"] # Enable OID support
 asm = ["sha1-asm"] # WARNING: this feature SHOULD NOT be enabled by library crates
 compress = [] # Expose compress function
 force-soft = [] # Force software implementation
diff --git a/sha1/README.md b/sha1/README.md
index bd76f0973..96a393737 100644
--- a/sha1/README.md
+++ b/sha1/README.md
@@ -21,7 +21,7 @@ We provide this crate for legacy interoperability purposes only.
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -53,7 +53,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/sha1/badge.svg
 [docs-link]: https://docs.rs/sha1/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/sha1/badge.svg?branch=master
diff --git a/sha2/Cargo.toml b/sha2/Cargo.toml
index 9d8dedb03..722f4f435 100644
--- a/sha2/Cargo.toml
+++ b/sha2/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sha2"
-version = "0.10.6"
+version = "0.11.0"
 description = """
 Pure Rust implementation of the SHA-2 hash function family
 including SHA-224, SHA-256, SHA-384, and SHA-512.
@@ -8,14 +8,15 @@ including SHA-224, SHA-256, SHA-384, and SHA-512.
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/sha2"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "sha2", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.4"
+digest = "0.11.0-pre"
 cfg-if = "1.0"
 
 [target.'cfg(any(target_arch = "aarch64", target_arch = "x86_64", target_arch = "x86"))'.dependencies]
@@ -23,13 +24,13 @@ cpufeatures = "0.2"
 sha2-asm = { version = "0.6.1", optional = true }
 
 [dev-dependencies]
-digest = { version = "0.10.4", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3.3"
 
 [features]
-default = ["std"]
+default = ["std", "oid"]
 std = ["digest/std"]
-oid = ["digest/oid"] # Enable OID support. WARNING: Bumps MSRV to 1.57
+oid = ["digest/oid"] # Enable OID support
 asm = ["sha2-asm"] # WARNING: this feature SHOULD NOT be enabled by library crates
 compress = [] # Expose compress functions
 force-soft = [] # Force software implementation
diff --git a/sha2/README.md b/sha2/README.md
index 594e95324..f2ec3af53 100644
--- a/sha2/README.md
+++ b/sha2/README.md
@@ -16,7 +16,7 @@ including SHA-224, SHA-256, SHA-384, and SHA-512.
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -48,7 +48,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/sha2/badge.svg
 [docs-link]: https://docs.rs/sha2/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/sha2/badge.svg?branch=master
diff --git a/sha2/tests/mod.rs b/sha2/tests/mod.rs
index 91df4683b..e8a9daad8 100644
--- a/sha2/tests/mod.rs
+++ b/sha2/tests/mod.rs
@@ -15,21 +15,21 @@ fn sha256_rand() {
     let mut h = Sha256::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("45f51fead87328fe837a86f4f1ac0eb15116ab1473adc0423ef86c62eb2320c7")[..]
+        h.finalize(),
+        hex!("45f51fead87328fe837a86f4f1ac0eb15116ab1473adc0423ef86c62eb2320c7").into(),
     );
 }
 
 #[test]
-#[rustfmt::skip]
 fn sha512_rand() {
     let mut h = Sha512::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("
-            9084d75a7c0721541d737b6171eb465dc9ba08a119a182a8508484aa27a176cd
-            e7c2103b108393eb024493ced4aac56be6f57222cac41b801f11494886264997
-        ")[..]
+        h.finalize(),
+        hex!(
+            "9084d75a7c0721541d737b6171eb465dc9ba08a119a182a8508484aa27a176cd"
+            "e7c2103b108393eb024493ced4aac56be6f57222cac41b801f11494886264997"
+        )
+        .into(),
     );
 }
diff --git a/sha3/Cargo.toml b/sha3/Cargo.toml
index 787290284..571b54cb5 100644
--- a/sha3/Cargo.toml
+++ b/sha3/Cargo.toml
@@ -1,28 +1,29 @@
 [package]
 name = "sha3"
-version = "0.10.6"
+version = "0.11.0"
 description = "SHA-3 (Keccak) hash function"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/sha3"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "sha3", "keccak", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.4"
+digest = "0.11.0-pre"
 keccak = "0.1.3"
 
 [dev-dependencies]
-digest = { version = "0.10.4", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3"
 
 [features]
-default = ["std"]
+default = ["std", "oid"]
 std = ["digest/std"]
 
 asm = ["keccak/asm"] # Enable ASM (currently ARMv8 only). WARNING: Bumps MSRV to 1.59
-oid = ["digest/oid"] # Enable OID support. WARNING: Bumps MSRV to 1.57
+oid = ["digest/oid"] # Enable OID support
 reset = [] # Enable reset functionality
diff --git a/sha3/README.md b/sha3/README.md
index caef5d594..8b387a8c3 100644
--- a/sha3/README.md
+++ b/sha3/README.md
@@ -13,7 +13,7 @@ Pure Rust implementation of the [SHA-3 (Keccak) hash function][1].
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -45,7 +45,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/sha3/badge.svg
 [docs-link]: https://docs.rs/sha3/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/sha3/badge.svg?branch=master
diff --git a/sha3/src/macros.rs b/sha3/src/macros.rs
index 4b8397d44..f4b6a88ee 100644
--- a/sha3/src/macros.rs
+++ b/sha3/src/macros.rs
@@ -39,12 +39,12 @@ macro_rules! impl_sha3 {
             #[inline]
             fn finalize_fixed_core(&mut self, buffer: &mut Buffer<Self>, out: &mut Output<Self>) {
                 let pos = buffer.get_pos();
-                let block = buffer.pad_with_zeros();
+                let mut block = buffer.pad_with_zeros();
                 block[pos] = $pad;
                 let n = block.len();
                 block[n - 1] |= 0x80;
 
-                self.state.absorb_block(block);
+                self.state.absorb_block(&block);
 
                 self.state.as_bytes(out);
             }
@@ -135,12 +135,12 @@ macro_rules! impl_shake {
             #[inline]
             fn finalize_xof_core(&mut self, buffer: &mut Buffer<Self>) -> Self::ReaderCore {
                 let pos = buffer.get_pos();
-                let block = buffer.pad_with_zeros();
+                let mut block = buffer.pad_with_zeros();
                 block[pos] = $pad;
                 let n = block.len();
                 block[n - 1] |= 0x80;
 
-                self.state.absorb_block(block);
+                self.state.absorb_block(&block);
                 $reader {
                     state: self.state.clone(),
                 }
@@ -298,7 +298,7 @@ macro_rules! impl_cshake {
                         state.absorb_block(block);
                     }
                 });
-                state.absorb_block(buffer.pad_with_zeros());
+                state.absorb_block(&buffer.pad_with_zeros());
 
                 Self {
                     padding: $cshake_pad,
@@ -334,12 +334,12 @@ macro_rules! impl_cshake {
             #[inline]
             fn finalize_xof_core(&mut self, buffer: &mut Buffer<Self>) -> Self::ReaderCore {
                 let pos = buffer.get_pos();
-                let block = buffer.pad_with_zeros();
+                let mut block = buffer.pad_with_zeros();
                 block[pos] = self.padding;
                 let n = block.len();
                 block[n - 1] |= 0x80;
 
-                self.state.absorb_block(block);
+                self.state.absorb_block(&block);
                 $reader {
                     state: self.state.clone(),
                 }
diff --git a/shabal/Cargo.toml b/shabal/Cargo.toml
index dc5d0dbec..69d6882d7 100644
--- a/shabal/Cargo.toml
+++ b/shabal/Cargo.toml
@@ -1,22 +1,23 @@
 [package]
 name = "shabal"
-version = "0.4.1"
+version = "0.5.0"
 description = "Shabal hash functions"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/shabal"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "shabal", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.3"
+digest = "0.11.0-pre"
 
 [dev-dependencies]
-digest = { version = "0.10.3", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3.3"
 
 [features]
 default = ["std"]
diff --git a/shabal/README.md b/shabal/README.md
index e48a1cd26..8e997c6ff 100644
--- a/shabal/README.md
+++ b/shabal/README.md
@@ -42,7 +42,7 @@ assert_eq!(result[..], hex!("d945dee21ffca23ac232763aa9cac6c15805f144db9d6c97395
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -74,7 +74,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/shabal/badge.svg
 [docs-link]: https://docs.rs/shabal/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/shabal/badge.svg?branch=master
diff --git a/shabal/src/core_api.rs b/shabal/src/core_api.rs
index 561117522..89ba5fd16 100644
--- a/shabal/src/core_api.rs
+++ b/shabal/src/core_api.rs
@@ -216,10 +216,10 @@ impl VariableOutputCore for ShabalVarCore {
     #[inline]
     fn finalize_variable_core(&mut self, buffer: &mut Buffer<Self>, out: &mut Output<Self>) {
         let pos = buffer.get_pos();
-        let block = buffer.pad_with_zeros();
+        let mut block = buffer.pad_with_zeros();
         block[pos] = 0x80;
 
-        let m = read_m(block);
+        let m = read_m(&block);
         self.add_m(&m);
         self.xor_w();
         self.perm(&m);
diff --git a/shabal/tests/mod.rs b/shabal/tests/mod.rs
index 0e43643d4..50d554668 100644
--- a/shabal/tests/mod.rs
+++ b/shabal/tests/mod.rs
@@ -16,8 +16,8 @@ fn shabal192_rand() {
     let mut h = Shabal192::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("a3e480026be158db97976a895b7a015e9e5205986ebc8a89")[..]
+        h.finalize(),
+        hex!("a3e480026be158db97976a895b7a015e9e5205986ebc8a89").into(),
     );
 }
 
@@ -26,8 +26,8 @@ fn shabal224_rand() {
     let mut h = Shabal224::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("a09bedfed92fdffc896e6043ec175aa1f07383c65bde990a3661e3d0")[..]
+        h.finalize(),
+        hex!("a09bedfed92fdffc896e6043ec175aa1f07383c65bde990a3661e3d0").into(),
     );
 }
 
@@ -36,35 +36,35 @@ fn shabal256_rand() {
     let mut h = Shabal256::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("53252a6467450aa1afc1ac25efb493aa65b70e5b2280a4bed7f672c0cfe6f40e")[..]
+        h.finalize(),
+        hex!("53252a6467450aa1afc1ac25efb493aa65b70e5b2280a4bed7f672c0cfe6f40e").into(),
     );
 }
 
 #[test]
-#[rustfmt::skip]
 fn shabal384_rand() {
     let mut h = Shabal384::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("
-            15b8ece81e490848c997dba603523be8842c654262e5adc29138d22a01ff0c9f
-            2b0a0dc9f3e7702ac3598fb1b9ff2db2
-        ")[..]
+        h.finalize(),
+        hex!(
+            "15b8ece81e490848c997dba603523be8842c654262e5adc29138d22a01ff0c9f"
+            "2b0a0dc9f3e7702ac3598fb1b9ff2db2"
+        )
+        .into(),
     );
 }
 
 #[test]
-#[rustfmt::skip]
 fn shabal512_rand() {
     let mut h = Shabal512::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("
-            66f091bc2ba6c571a776441c08ee0711752344ba8b4c88ea17a078baa70d8c0a
-            717b7da24e765867cfcf273a43a58f90e07c0130d1e97adc49f66a0502536e82
-        ")[..]
+        h.finalize(),
+        hex!(
+            "66f091bc2ba6c571a776441c08ee0711752344ba8b4c88ea17a078baa70d8c0a"
+            "717b7da24e765867cfcf273a43a58f90e07c0130d1e97adc49f66a0502536e82"
+        )
+        .into(),
     );
 }
diff --git a/sm3/Cargo.toml b/sm3/Cargo.toml
index 0de39ecc0..e164fb340 100644
--- a/sm3/Cargo.toml
+++ b/sm3/Cargo.toml
@@ -1,22 +1,23 @@
 [package]
 name = "sm3"
-version = "0.4.1"
+version = "0.5.0"
 description = "SM3 (OSCCA GM/T 0004-2012) hash function"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/sm3"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "sm3", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.3"
+digest = "0.11.0-pre"
 
 [dev-dependencies]
-digest = { version = "0.10.3", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3"
 
 [features]
 default = ["std"]
diff --git a/sm3/README.md b/sm3/README.md
index 29bdcf63e..244b66549 100644
--- a/sm3/README.md
+++ b/sm3/README.md
@@ -13,7 +13,7 @@ Pure Rust implementation of the [SM3 (OSCCA GM/T 0004-2012)][1] hash function.
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -45,7 +45,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/sm3/badge.svg
 [docs-link]: https://docs.rs/sm3/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/sm3/badge.svg?branch=master
diff --git a/streebog/Cargo.toml b/streebog/Cargo.toml
index ea3fd1254..a60bf2ee0 100644
--- a/streebog/Cargo.toml
+++ b/streebog/Cargo.toml
@@ -1,24 +1,25 @@
 [package]
 name = "streebog"
-version = "0.10.2"
+version = "0.11.0"
 description = "Streebog (GOST R 34.11-2012) hash function"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/streebog"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "streebog", "gost", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.4"
+digest = "0.11.0-pre"
 
 [dev-dependencies]
-digest = { version = "0.10.4", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3.3"
 
 [features]
-default = ["std"]
+default = ["std", "oid"]
 std = ["digest/std"]
-oid = ["digest/oid"] # Enable OID support. WARNING: Bumps MSRV to 1.57
+oid = ["digest/oid"] # Enable OID support
diff --git a/streebog/README.md b/streebog/README.md
index b8b4c7acc..c19d5e0aa 100644
--- a/streebog/README.md
+++ b/streebog/README.md
@@ -13,7 +13,7 @@ Pure Rust implementation of the [Streebog (GOST R 34.11-2012)][1] hash function.
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -45,7 +45,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/streebog/badge.svg
 [docs-link]: https://docs.rs/streebog/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/streebog/badge.svg?branch=master
diff --git a/streebog/src/core_api.rs b/streebog/src/core_api.rs
index a9bd09b06..d143aedcf 100644
--- a/streebog/src/core_api.rs
+++ b/streebog/src/core_api.rs
@@ -140,7 +140,7 @@ impl VariableOutputCore for StreebogVarCore {
     #[inline]
     fn finalize_variable_core(&mut self, buffer: &mut Buffer<Self>, out: &mut Output<Self>) {
         let pos = buffer.get_pos();
-        let block = buffer.pad_with_zeros();
+        let mut block = buffer.pad_with_zeros();
         block[pos] = 1;
         self.compress(block.as_ref(), pos as u64);
         self.g(&[0u8; 64], &to_bytes(&self.n));
diff --git a/streebog/tests/mod.rs b/streebog/tests/mod.rs
index aeddaefd1..97ac79c6a 100644
--- a/streebog/tests/mod.rs
+++ b/streebog/tests/mod.rs
@@ -21,7 +21,6 @@ new_test!(
 /// Test vectors from:
 /// https://github.com/gost-engine/engine/blob/master/test/01-digest.t
 #[test]
-#[rustfmt::skip]
 fn gost_engine_tests() {
     let h256 = &mut streebog::Streebog256::new();
     let h512 = &mut streebog::Streebog512::new();
@@ -39,24 +38,26 @@ fn gost_engine_tests() {
         update(h256, h512, b"12345670");
     }
     check(
-        h256, h512,
+        h256,
+        h512,
         hex!("1906512b86a1283c68cec8419e57113efc562a1d0e95d8f4809542900c416fe4"),
-        hex!("
-            283587e434864d0d4bea97c0fb10e2dd421572fc859304bdf6a94673d652c590
-            49212bad7802b4fcf5eecc1f8fab569d60f2c20dbd789a7fe4efbd79d8137ee7
-        "),
+        hex!(
+            "283587e434864d0d4bea97c0fb10e2dd421572fc859304bdf6a94673d652c590"
+            "49212bad7802b4fcf5eecc1f8fab569d60f2c20dbd789a7fe4efbd79d8137ee7"
+        ),
     );
 
     for _ in 0..128 {
         update(h256, h512, &hex!("0001021584674531"));
     }
     check(
-        h256, h512,
+        h256,
+        h512,
         hex!("2eb1306be3e490f18ff0e2571a077b3831c815c46c7d4fdf9e0e26de4032b3f3"),
-        hex!("
-            55656e5bcf795b499031a7833cd7dc18fe10d4a47e15be545c6ab3f304a4fe41
-            1c4c39de5b1fc6844880111441e0b92bf1ec2fb7840453fe39a2b70ced461968
-        "),
+        hex!(
+            "55656e5bcf795b499031a7833cd7dc18fe10d4a47e15be545c6ab3f304a4fe41"
+            "1c4c39de5b1fc6844880111441e0b92bf1ec2fb7840453fe39a2b70ced461968"
+        ),
     );
 
     let mut buf = Vec::new();
@@ -65,12 +66,13 @@ fn gost_engine_tests() {
     }
     update(h256, h512, &buf[0..539]);
     check(
-        h256, h512,
+        h256,
+        h512,
         hex!("c98a17f9fadff78d08521e4179a7b2e6275f3b1da88339a3cb961a3514e5332e"),
-        hex!("
-            d5ad93fbc9ed7abc1cf28d00827a052b40bea74b04c4fd753102c1bcf9f9dad5
-            142887f8a4cceaa0d64a0a8291592413d6adb956b99138a0023e127ff37bdf08
-        "),
+        hex!(
+            "d5ad93fbc9ed7abc1cf28d00827a052b40bea74b04c4fd753102c1bcf9f9dad5"
+            "142887f8a4cceaa0d64a0a8291592413d6adb956b99138a0023e127ff37bdf08"
+        ),
     );
 
     for _ in 0..4096 {
@@ -81,12 +83,13 @@ fn gost_engine_tests() {
     }
     update(h256, h512, b"12345\n");
     check(
-        h256, h512,
+        h256,
+        h512,
         hex!("50e935d725d9359e5991b6b7eba8b3539fca03584d26adf4c827c982ffd49367"),
-        hex!("
-            1d93645ebfbb477660f98b7d1598e37fbf3bfc8234ead26e2246e1b979e590ac
-            46138158a692f9a0c9ac2550758b4d0d4c9fb8af5e595a16d3760c6516443f82
-        "),
+        hex!(
+            "1d93645ebfbb477660f98b7d1598e37fbf3bfc8234ead26e2246e1b979e590ac"
+            "46138158a692f9a0c9ac2550758b4d0d4c9fb8af5e595a16d3760c6516443f82"
+        ),
     );
 }
 
@@ -95,21 +98,21 @@ fn streebog256_rand() {
     let mut h = Streebog256::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("eb5783a2d3f1aa52136701c07c90272a45f017733d898cdfc02302ad2ac8ebed")[..],
+        h.finalize(),
+        hex!("eb5783a2d3f1aa52136701c07c90272a45f017733d898cdfc02302ad2ac8ebed").into(),
     );
 }
 
 #[test]
-#[rustfmt::skip]
 fn streebog512_rand() {
     let mut h = Streebog512::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("
-            d78479790925e257b1d65bec84cbe9bbd9bf0abcefb9f99aa065cc533187224f
-            2bead756c96297dcd17728a838e3117a9123559be655175bf4cdac0ee11fba75
-        ")[..],
+        h.finalize(),
+        hex!(
+            "d78479790925e257b1d65bec84cbe9bbd9bf0abcefb9f99aa065cc533187224f"
+            "2bead756c96297dcd17728a838e3117a9123559be655175bf4cdac0ee11fba75"
+        )
+        .into(),
     );
 }
diff --git a/tiger/Cargo.toml b/tiger/Cargo.toml
index f2429c5e1..7344af1d6 100644
--- a/tiger/Cargo.toml
+++ b/tiger/Cargo.toml
@@ -1,22 +1,23 @@
 [package]
 name = "tiger"
-version = "0.2.1"
+version = "0.3.0"
 description = "Tiger hash function"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/tiger"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "hash", "tiger", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.3"
+digest = "0.11.0-pre"
 
 [dev-dependencies]
-digest = { version = "0.10.3", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3"
 
 [features]
 default = ["std"]
diff --git a/tiger/README.md b/tiger/README.md
index 74ea514e0..3bd01995e 100644
--- a/tiger/README.md
+++ b/tiger/README.md
@@ -13,7 +13,7 @@ Pure Rust implementation of the [Tiger] hash function.
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -44,7 +44,7 @@ for inclusion in the work by you, as defined in the Apache-2.0 license, without
 [docs-image]: https://docs.rs/tiger/badge.svg
 [docs-link]: https://docs.rs/tiger/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/tiger/badge.svg?branch=master
diff --git a/tiger/src/lib.rs b/tiger/src/lib.rs
index a5f1f8d80..ed2830a7d 100644
--- a/tiger/src/lib.rs
+++ b/tiger/src/lib.rs
@@ -91,7 +91,7 @@ impl UpdateCore for TigerCore {
 impl FixedOutputCore for TigerCore {
     #[inline]
     fn finalize_fixed_core(&mut self, buffer: &mut Buffer<Self>, out: &mut Output<Self>) {
-        let bs = Self::BlockSize::U64 as u64;
+        let bs = Self::BlockSize::U64;
         let pos = buffer.get_pos() as u64;
         let bit_len = 8 * (pos + bs * self.block_len);
 
@@ -165,7 +165,7 @@ impl UpdateCore for Tiger2Core {
 impl FixedOutputCore for Tiger2Core {
     #[inline]
     fn finalize_fixed_core(&mut self, buffer: &mut Buffer<Self>, out: &mut Output<Self>) {
-        let bs = Self::BlockSize::U64 as u64;
+        let bs = Self::BlockSize::U64;
         let pos = buffer.get_pos() as u64;
         let bit_len = 8 * (pos + bs * self.block_len);
 
diff --git a/whirlpool/Cargo.toml b/whirlpool/Cargo.toml
index 0a459c617..be720462d 100644
--- a/whirlpool/Cargo.toml
+++ b/whirlpool/Cargo.toml
@@ -1,25 +1,26 @@
 [package]
 name = "whirlpool"
-version = "0.10.4"
+version = "0.11.0"
 description = "Whirlpool hash function"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.57"
 documentation = "https://docs.rs/whirlpool"
 repository = "https://github.com/RustCrypto/hashes"
 keywords = ["crypto", "whirlpool", "hash", "digest"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-digest = "0.10.3"
+digest = "0.11.0-pre"
 
 [target.'cfg(any(target_arch = "x86", target_arch = "x86_64"))'.dependencies]
 whirlpool-asm = { version = "0.6", optional = true}
 
 [dev-dependencies]
-digest = { version = "0.10.3", features = ["dev"] }
-hex-literal = "0.2.2"
+digest = { version = "0.11.0-pre", features = ["dev"] }
+hex-literal = "0.3.3"
 
 [features]
 default = ["std"]
diff --git a/whirlpool/README.md b/whirlpool/README.md
index e4dfc28f9..6652fa1f0 100644
--- a/whirlpool/README.md
+++ b/whirlpool/README.md
@@ -13,7 +13,7 @@ Pure Rust implementation of the [Whirlpool hash function][1].
 
 ## Minimum Supported Rust Version
 
-Rust **1.41** or higher.
+Rust **1.57** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be
 done with a minor version bump.
@@ -45,7 +45,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/whirlpool/badge.svg
 [docs-link]: https://docs.rs/whirlpool/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
 [build-image]: https://github.com/RustCrypto/hashes/workflows/whirlpool/badge.svg?branch=master
diff --git a/whirlpool/tests/mod.rs b/whirlpool/tests/mod.rs
index 491348ed0..46aa7ff37 100644
--- a/whirlpool/tests/mod.rs
+++ b/whirlpool/tests/mod.rs
@@ -5,15 +5,15 @@ use whirlpool::{Digest, Whirlpool};
 digest::new_test!(whirlpool_main, "whirlpool", Whirlpool, fixed_reset_test);
 
 #[test]
-#[rustfmt::skip]
 fn whirlpool_rand() {
     let mut h = Whirlpool::new();
     feed_rand_16mib(&mut h);
     assert_eq!(
-        h.finalize()[..],
-        hex!("
-            8db0acd78686f8160203b53bfb0c0c1ee2332b856732a311f7de8e4ea4c100cc
-            dd5267e8b63207e644c96d2ef5cfbb53f2519af1904c48fd2ecf937541998b11
-        ")[..]
+        h.finalize(),
+        hex!(
+            "8db0acd78686f8160203b53bfb0c0c1ee2332b856732a311f7de8e4ea4c100cc"
+            "dd5267e8b63207e644c96d2ef5cfbb53f2519af1904c48fd2ecf937541998b11"
+        )
+        .into(),
     );
 }