update to the 2024 edition

While we're taking this MSRV bump, we can also update
`constant_time_eq`, which uses the 2024 edition in its most recent
versions.

15 files changed, 185 insertions, 127 deletions

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6254b10..f42e78a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -155,7 +155,7 @@ jobs:
     # https://github.com/rust-lang/libs-team/issues/72.
     # This test target is here so that we notice if we accidentally bump
     # the MSRV, but it's not a promise that we won't bump it.
-    - uses: dtolnay/[email protected]
+    - uses: dtolnay/[email protected]
     - run: cargo build --features=mmap,rayon,traits-preview,serde,zeroize
 
   b3sum_tests:
diff --git a/Cargo.toml b/Cargo.toml
index 8302b3f..853d917 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,7 @@ repository = "https://github.com/BLAKE3-team/BLAKE3"
 license = "CC0-1.0 OR Apache-2.0 OR Apache-2.0 WITH LLVM-exception"
 documentation = "https://docs.rs/blake3"
 readme = "README.md"
-edition = "2021"
+edition = "2024"
 
 [features]
 default = ["std"]
diff --git a/b3sum/Cargo.lock b/b3sum/Cargo.lock
index bfb8194..eb1da0e 100644
--- a/b3sum/Cargo.lock
+++ b/b3sum/Cargo.lock
@@ -4,9 +4,9 @@ version = 4
 
 [[package]]
 name = "anstream"
-version = "0.6.18"
+version = "0.6.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8acc5369981196006228e28809f761875c0327210a891e941f4c683b3a99529b"
+checksum = "43d5b281e737544384e969a5ccad3f1cdd24b48086a0fc1b2a5262a26b8f4f4a"
 dependencies = [
  "anstyle",
  "anstyle-parse",
@@ -19,44 +19,44 @@ dependencies = [
 
 [[package]]
 name = "anstyle"
-version = "1.0.10"
+version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9"
+checksum = "5192cca8006f1fd4f7237516f40fa183bb07f8fbdfedaa0036de5ea9b0b45e78"
 
 [[package]]
 name = "anstyle-parse"
-version = "0.2.6"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b2d16507662817a6a20a9ea92df6652ee4f94f914589377d69f3b21bc5798a9"
+checksum = "4e7644824f0aa2c7b9384579234ef10eb7efb6a0deb83f9630a49594dd9c15c2"
 dependencies = [
  "utf8parse",
 ]
 
 [[package]]
 name = "anstyle-query"
-version = "1.1.2"
+version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79947af37f4177cfead1110013d678905c37501914fba0efea834c3fe9a8d60c"
+checksum = "40c48f72fd53cd289104fc64099abca73db4166ad86ea0b4341abe65af83dadc"
 dependencies = [
- "windows-sys",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
 name = "anstyle-wincon"
-version = "3.0.7"
+version = "3.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca3534e77181a9cc07539ad51f2141fe32f6c3ffd4df76db8ad92346b003ae4e"
+checksum = "291e6a250ff86cd4a820112fb8898808a366d8f9f58ce16d1f538353ad55747d"
 dependencies = [
  "anstyle",
- "once_cell",
- "windows-sys",
+ "once_cell_polyfill",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
 name = "anyhow"
-version = "1.0.98"
+version = "1.0.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e16d2d3311acee920a9eb8d33b8cbc1787ce4a264e85f964c2404b969bdcd487"
+checksum = "a23eb6b1614318a8071c9b2521f36b424b2c83db5eb3a0fead4a6c0809af6e61"
 
 [[package]]
 name = "arrayref"
@@ -86,9 +86,9 @@ dependencies = [
 
 [[package]]
 name = "bitflags"
-version = "2.9.0"
+version = "2.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c8214115b7bf84099f1309324e63141d4c5d7cc26862f97a0a857dbefe165bd"
+checksum = "812e12b5285cc515a9c72a5c1d3b6d46a19dac5acfef5265968c166106e31dd3"
 
 [[package]]
 name = "blake3"
@@ -106,24 +106,25 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.2.21"
+version = "1.2.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8691782945451c1c383942c4874dbe63814f61cb57ef773cda2972682b7bb3c0"
+checksum = "7a0aeaff4ff1a90589618835a598e545176939b97874f7abc7851caa0618f203"
 dependencies = [
+ "find-msvc-tools",
  "shlex",
 ]
 
 [[package]]
 name = "cfg-if"
-version = "1.0.0"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
 
 [[package]]
 name = "clap"
-version = "4.5.37"
+version = "4.5.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eccb054f56cbd38340b380d4a8e69ef1f02f1af43db2f0cc817a4774d80ae071"
+checksum = "c6e6ff9dcd79cff5cd969a17a545d79e84ab086e444102a591e288a8aa3ce394"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -131,9 +132,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.37"
+version = "4.5.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "efd9466fac8543255d3b1fcad4762c5e116ffe808c8a3043d4263cd4fd4862a2"
+checksum = "fa42cf4d2b7a41bc8f663a7cab4031ebafa1bf3875705bfaf8466dc60ab52c00"
 dependencies = [
  "anstream",
  "anstyle",
@@ -144,9 +145,9 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "4.5.32"
+version = "4.5.49"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09176aae279615badda0765c0c0b3f6ed53f4709118af73cf4655d85d1530cd7"
+checksum = "2a0b5487afeab2deb2ff4e03a807ad1a03ac532ff5a2cee5d86884440c7f7671"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -156,21 +157,21 @@ dependencies = [
 
 [[package]]
 name = "clap_lex"
-version = "0.7.4"
+version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f46ad14479a25103f283c0f10005961cf086d8dc42205bb44c46ac563475dca6"
+checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "colorchoice"
-version = "1.0.3"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
+checksum = "b05b61dc5112cbb17e4b6cd61790d9845d13888356391624cbe7e41efeac1e75"
 
 [[package]]
 name = "constant_time_eq"
-version = "0.3.1"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c74b8349d32d297c9134b8c88677813a227df8f779daa29bfc29c183fe3dca6"
+checksum = "3d52eff69cd5e647efe296129160853a42795992097e8af39800e1060caeea9b"
 
 [[package]]
 name = "cpufeatures"
@@ -208,9 +209,9 @@ checksum = "d0a5c400df2834b80a4c3327b3aad3a4c4cd4de0629063962b03235697506a28"
 
 [[package]]
 name = "duct"
-version = "1.0.0"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6ce170a0e8454fa0f9b0e5ca38a6ba17ed76a50916839d217eb5357e05cdfde"
+checksum = "7e66e9c0c03d094e1a0ba1be130b849034aa80c3a2ab8ee94316bc809f3fa684"
 dependencies = [
  "libc",
  "os_pipe",
@@ -220,12 +221,12 @@ dependencies = [
 
 [[package]]
 name = "errno"
-version = "0.3.11"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "976dd42dc7e85965fe702eb8164f21f450704bdde31faefd6471dba214cb594e"
+checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -235,22 +236,28 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
 
 [[package]]
+name = "find-msvc-tools"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "645cbb3a84e60b7531617d5ae4e57f7e27308f6445f5abf653209ea76dec8dff"
+
+[[package]]
 name = "getrandom"
-version = "0.3.2"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73fea8450eea4bac3940448fb7ae50d91f034f941199fcd9d909a5a07aa455f0"
+checksum = "899def5c37c4fd7b2664648c28120ecec138e4d395b459e5ca34f9cce2dd77fd"
 dependencies = [
  "cfg-if",
  "libc",
  "r-efi",
- "wasi",
+ "wasip2",
 ]
 
 [[package]]
 name = "glob"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a8d1add55171497b4705a648c6b583acafb01d58050a51727785f0b2c8e0a2b2"
+checksum = "0cc23270f6e1808e30a928bdc84dea0b9b4136a8bc82338574f23baf47bbd280"
 
 [[package]]
 name = "heck"
@@ -266,27 +273,27 @@ checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
 [[package]]
 name = "is_terminal_polyfill"
-version = "1.70.1"
+version = "1.70.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
+checksum = "a6cb138bb79a146c1bd460005623e142ef0181e3d0219cb493e02f7d08a35695"
 
 [[package]]
 name = "libc"
-version = "0.2.172"
+version = "0.2.180"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d750af042f7ef4f724306de029d18836c26c1765a54a6a3f094cbd23a7267ffa"
+checksum = "bcc35a38544a891a5f7c865aca548a982ccb3b8650a5b06d0fd33a10283c56fc"
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.9.4"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd945864f07fe9f5371a27ad7b52a172b4b499999f1d97574c9fa68373937e12"
+checksum = "df1d3c3b53da64cf5760482273a98e575c651a67eec7f77df96b5b642de8f039"
 
 [[package]]
 name = "memmap2"
-version = "0.9.5"
+version = "0.9.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd3f7eed9d3848f8b98834af67102b720745c4ec028fcd0aa0239277e7de374f"
+checksum = "744133e4a0e0a658e1374cf3bf8e415c4052a15a111acd372764c55b4177d490"
 dependencies = [
  "libc",
 ]
@@ -298,44 +305,50 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
 [[package]]
+name = "once_cell_polyfill"
+version = "1.70.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"
+
+[[package]]
 name = "os_pipe"
-version = "1.2.1"
+version = "1.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ffd2b0a5634335b135d5728d84c5e0fd726954b87111f7506a61c502280d982"
+checksum = "7d8fae84b431384b68627d0f9b3b1245fcf9f46f6c0e3dc902e9dce64edd1967"
 dependencies = [
  "libc",
- "windows-sys",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.95"
+version = "1.0.105"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02b3e5e68a3a1a02aad3ec490a98007cbc13c37cbe84a3cd7b8e406d76e7f778"
+checksum = "535d180e0ecab6268a3e718bb9fd44db66bbbc256257165fc699dadf70d16fe7"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.40"
+version = "1.0.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1885c039570dc00dcb4ff087a89e185fd56bae234ddc7f056a945bf36467248d"
+checksum = "dc74d9a594b72ae6656596548f56f667211f8a97b3d4c3d467150794690dc40a"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
 name = "r-efi"
-version = "5.2.0"
+version = "5.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"
+checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
 
 [[package]]
 name = "rayon-core"
-version = "1.12.1"
+version = "1.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1465873a3dfdaa8ae7cb14b4383657caab0b3e8a0aa9ae8e04b044854c8dfce2"
+checksum = "22e18b0f0062d30d4230b2e85ff77fdfe4326feb054b9783a3460d8435c8ab91"
 dependencies = [
  "crossbeam-deque",
  "crossbeam-utils",
@@ -343,32 +356,33 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "1.0.7"
+version = "1.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c71e83d6afe7ff64890ec6b71d6a69bb8a610ab78ce364b3352876bb4c801266"
+checksum = "146c9e247ccc180c1f61615433868c99f3de3ae256a30a43b49f67c2d9171f34"
 dependencies = [
  "bitflags",
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
 name = "shared_child"
-version = "1.0.2"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e297bd52991bbe0686c086957bee142f13df85d1e79b0b21630a99d374ae9dc"
+checksum = "1e362d9935bc50f019969e2f9ecd66786612daae13e8f277be7bfb66e8bed3f7"
 dependencies = [
  "libc",
- "windows-sys",
+ "sigchld",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
 name = "shared_thread"
-version = "0.1.0"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7a6f98357c6bb0ebace19b22220e5543801d9de90ffe77f8abb27c056bac064"
+checksum = "52b86057fcb5423f5018e331ac04623e32d6b5ce85e33300f92c79a1973928b0"
 
 [[package]]
 name = "shlex"
@@ -377,6 +391,37 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
 [[package]]
+name = "sigchld"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "47106eded3c154e70176fc83df9737335c94ce22f821c32d17ed1db1f83badb1"
+dependencies = [
+ "libc",
+ "os_pipe",
+ "signal-hook",
+]
+
+[[package]]
+name = "signal-hook"
+version = "0.3.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d881a16cf4426aa584979d30bd82cb33429027e42122b169753d6ef1085ed6e2"
+dependencies = [
+ "libc",
+ "signal-hook-registry",
+]
+
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4db69cba1110affc0e9f7bcd48bbf87b3f4fc7c61fc9155afd4c469eb3d6c1b"
+dependencies = [
+ "errno",
+ "libc",
+]
+
+[[package]]
 name = "strsim"
 version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -384,9 +429,9 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "syn"
-version = "2.0.101"
+version = "2.0.114"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ce2b7fc941b3a24138a0a7cf8e858bfc6a992e7978a068a5c760deb0ed43caf"
+checksum = "d4d107df263a3013ef9b1879b0df87d706ff80f65a86ea879bd9c31f9b307c2a"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -395,32 +440,32 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.19.1"
+version = "3.24.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7437ac7763b9b123ccf33c338a5cc1bac6f69b45a136c19bdd8a65e3916435bf"
+checksum = "655da9c7eb6305c55742045d5a8d2037996d61d8de95806335c7c86ce0f82e9c"
 dependencies = [
  "fastrand",
  "getrandom",
  "once_cell",
  "rustix",
- "windows-sys",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
 name = "terminal_size"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "45c6481c4829e4cc63825e62c49186a34538b7b2750b73b266581ffb612fb5ed"
+checksum = "60b8cb979cb11c32ce1603f8137b22262a9d131aaa5c37b5678025f22b8becd0"
 dependencies = [
  "rustix",
- "windows-sys",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.18"
+version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
+checksum = "9312f7c4f6ff9069b165498234ce8be658059c6728633667c526e27dc2cf1df5"
 
 [[package]]
 name = "utf8parse"
@@ -429,12 +474,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
 
 [[package]]
-name = "wasi"
-version = "0.14.2+wasi-0.2.4"
+name = "wasip2"
+version = "1.0.1+wasi-0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9683f9a5a998d873c0d21fcbe3c083009670149a8fab228644b8bd36b2c48cb3"
+checksum = "0562428422c63773dad2c345a1882263bbf4d65cf3f42e90921f787ef5ad58e7"
 dependencies = [
- "wit-bindgen-rt",
+ "wit-bindgen",
 ]
 
 [[package]]
@@ -447,20 +492,36 @@ dependencies = [
 ]
 
 [[package]]
+name = "windows-link"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
+
+[[package]]
 name = "windows-sys"
-version = "0.59.0"
+version = "0.60.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
+checksum = "f2f500e4d28234f72040990ec9d39e3a6b950f9f22d3dba18416c35882612bcb"
 dependencies = [
  "windows-targets",
 ]
 
 [[package]]
+name = "windows-sys"
+version = "0.61.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae137229bcbd6cdf0f7b80a31df61766145077ddf49416a728b02cb3921ff3fc"
+dependencies = [
+ "windows-link",
+]
+
+[[package]]
 name = "windows-targets"
-version = "0.52.6"
+version = "0.53.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
+checksum = "4945f9f551b88e0d65f3db0bc25c33b8acea4d9e41163edf90dcd0b19f9069f3"
 dependencies = [
+ "windows-link",
  "windows_aarch64_gnullvm",
  "windows_aarch64_msvc",
  "windows_i686_gnu",
@@ -473,57 +534,54 @@ dependencies = [
 
 [[package]]
 name = "windows_aarch64_gnullvm"
-version = "0.52.6"
+version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
+checksum = "a9d8416fa8b42f5c947f8482c43e7d89e73a173cead56d044f6a56104a6d1b53"
 
 [[package]]
 name = "windows_aarch64_msvc"
-version = "0.52.6"
+version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
+checksum = "b9d782e804c2f632e395708e99a94275910eb9100b2114651e04744e9b125006"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.52.6"
+version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
+checksum = "960e6da069d81e09becb0ca57a65220ddff016ff2d6af6a223cf372a506593a3"
 
 [[package]]
 name = "windows_i686_gnullvm"
-version = "0.52.6"
+version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
+checksum = "fa7359d10048f68ab8b09fa71c3daccfb0e9b559aed648a8f95469c27057180c"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.52.6"
+version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
+checksum = "1e7ac75179f18232fe9c285163565a57ef8d3c89254a30685b57d83a38d326c2"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.52.6"
+version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
+checksum = "9c3842cdd74a865a8066ab39c8a7a473c0778a3f29370b5fd6b4b9aa7df4a499"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
-version = "0.52.6"
+version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
+checksum = "0ffa179e2d07eee8ad8f57493436566c7cc30ac536a3379fdf008f47f6bb7ae1"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.52.6"
+version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
+checksum = "d6bbff5f0aada427a1e5a6da5f1f98158182f26556f345ac9e04d36d0ebed650"
 
 [[package]]
-name = "wit-bindgen-rt"
-version = "0.39.0"
+name = "wit-bindgen"
+version = "0.46.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f42320e61fe2cfd34354ecb597f86f413484a798ba44a8ca1165c58d42da6c1"
-dependencies = [
- "bitflags",
-]
+checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
diff --git a/b3sum/Cargo.toml b/b3sum/Cargo.toml
index f8c9023..52f8d03 100644
--- a/b3sum/Cargo.toml
+++ b/b3sum/Cargo.toml
@@ -6,7 +6,7 @@ description = "a command line implementation of the BLAKE3 hash function"
 repository = "https://github.com/BLAKE3-team/BLAKE3"
 license = "CC0-1.0 OR Apache-2.0 OR Apache-2.0 WITH LLVM-exception"
 readme = "README.md"
-edition = "2021"
+edition = "2024"
 
 [features]
 neon = ["blake3/neon"]
diff --git a/c/blake3_c_rust_bindings/Cargo.toml b/c/blake3_c_rust_bindings/Cargo.toml
index 4c3a252..8cb53d4 100644
--- a/c/blake3_c_rust_bindings/Cargo.toml
+++ b/c/blake3_c_rust_bindings/Cargo.toml
@@ -7,7 +7,7 @@
 name = "blake3_c_rust_bindings"
 version = "0.0.0"
 description = "TESTING ONLY Rust bindings for the BLAKE3 C implementation"
-edition = "2021"
+edition = "2024"
 
 [features]
 # By default the x86-64 build uses assembly implementations. This feature makes
diff --git a/c/blake3_c_rust_bindings/src/lib.rs b/c/blake3_c_rust_bindings/src/lib.rs
index c2b3989..f5f7023 100644
--- a/c/blake3_c_rust_bindings/src/lib.rs
+++ b/c/blake3_c_rust_bindings/src/lib.rs
@@ -133,7 +133,7 @@ pub mod ffi {
         pub cv_stack: [u8; 1728usize],
     }
 
-    extern "C" {
+    unsafe extern "C" {
         // public interface
         pub fn blake3_hasher_init(self_: *mut blake3_hasher);
         pub fn blake3_hasher_init_keyed(self_: *mut blake3_hasher, key: *const u8);
@@ -198,7 +198,7 @@ pub mod ffi {
 
     #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
     pub mod x86 {
-        extern "C" {
+        unsafe extern "C" {
             // SSE2 low level functions
             pub fn blake3_compress_in_place_sse2(
                 cv: *mut u32,
@@ -314,7 +314,7 @@ pub mod ffi {
 
     #[cfg(feature = "neon")]
     pub mod neon {
-        extern "C" {
+        unsafe extern "C" {
             // NEON low level functions
             pub fn blake3_hash_many_neon(
                 inputs: *const *const u8,
diff --git a/reference_impl/Cargo.toml b/reference_impl/Cargo.toml
index e269fe9..5542d74 100644
--- a/reference_impl/Cargo.toml
+++ b/reference_impl/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "reference_impl"
 version = "0.0.0"
-edition = "2021"
+edition = "2024"
 
 [lib]
 name = "reference_impl"
diff --git a/src/ffi_avx2.rs b/src/ffi_avx2.rs
index 43bf150..ef954bd 100644
--- a/src/ffi_avx2.rs
+++ b/src/ffi_avx2.rs
@@ -35,7 +35,7 @@ pub unsafe fn hash_many<const N: usize>(
 }
 
 pub mod ffi {
-    extern "C" {
+    unsafe extern "C" {
         pub fn blake3_hash_many_avx2(
             inputs: *const *const u8,
             num_inputs: usize,
diff --git a/src/ffi_avx512.rs b/src/ffi_avx512.rs
index e648eda..c83048e 100644
--- a/src/ffi_avx512.rs
+++ b/src/ffi_avx512.rs
@@ -97,7 +97,7 @@ pub unsafe fn xof_many(
 }
 
 pub mod ffi {
-    extern "C" {
+    unsafe extern "C" {
         pub fn blake3_compress_in_place_avx512(
             cv: *mut u32,
             block: *const u8,
diff --git a/src/ffi_neon.rs b/src/ffi_neon.rs
index 0b443c9..6112b1b 100644
--- a/src/ffi_neon.rs
+++ b/src/ffi_neon.rs
@@ -35,7 +35,7 @@ pub unsafe fn hash_many<const N: usize>(
 // implementation only provides 4x compression, and it relies on the portable
 // implementation for 1x compression. However, we expose the portable Rust
 // implementation here instead, to avoid linking in unnecessary code.
-#[no_mangle]
+#[unsafe(no_mangle)]
 pub extern "C" fn blake3_compress_in_place_portable(
     cv: *mut u32,
     block: *const u8,
@@ -55,7 +55,7 @@ pub extern "C" fn blake3_compress_in_place_portable(
 }
 
 pub mod ffi {
-    extern "C" {
+    unsafe extern "C" {
         pub fn blake3_hash_many_neon(
             inputs: *const *const u8,
             num_inputs: usize,
diff --git a/src/ffi_sse2.rs b/src/ffi_sse2.rs
index 8dafd69..78f09b8 100644
--- a/src/ffi_sse2.rs
+++ b/src/ffi_sse2.rs
@@ -73,7 +73,7 @@ pub unsafe fn hash_many<const N: usize>(
 }
 
 pub mod ffi {
-    extern "C" {
+    unsafe extern "C" {
         pub fn blake3_compress_in_place_sse2(
             cv: *mut u32,
             block: *const u8,
diff --git a/src/ffi_sse41.rs b/src/ffi_sse41.rs
index f851ca1..77ab89a 100644
--- a/src/ffi_sse41.rs
+++ b/src/ffi_sse41.rs
@@ -73,7 +73,7 @@ pub unsafe fn hash_many<const N: usize>(
 }
 
 pub mod ffi {
-    extern "C" {
+    unsafe extern "C" {
         pub fn blake3_compress_in_place_sse41(
             cv: *mut u32,
             block: *const u8,
diff --git a/test_vectors/Cargo.toml b/test_vectors/Cargo.toml
index 46ba58c..a90a18f 100644
--- a/test_vectors/Cargo.toml
+++ b/test_vectors/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "test_vectors"
 version = "0.0.0"
-edition = "2021"
+edition = "2024"
 
 [features]
 neon = ["blake3/neon"]
diff --git a/tools/compiler_version/Cargo.toml b/tools/compiler_version/Cargo.toml
index 8625094..b5f8482 100644
--- a/tools/compiler_version/Cargo.toml
+++ b/tools/compiler_version/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "compiler_version"
 version = "0.0.0"
-edition = "2021"
+edition = "2024"
 
 [build-dependencies]
 cc = "1.0.50"
diff --git a/tools/instruction_set_support/Cargo.toml b/tools/instruction_set_support/Cargo.toml
index eef8a80..39eed0a 100644
--- a/tools/instruction_set_support/Cargo.toml
+++ b/tools/instruction_set_support/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "instruction_set_support"
 version = "0.0.0"
-edition = "2021"
+edition = "2024"
 
 [dependencies]