Update cargo dependencies

``` name old req compatible latest new req ==== ======= ========== ====== ======= axum 0.8.6 0.8.7 0.8.7 0.8.7 clap 4.5.51 4.5.53 4.5.53 4.5.53 clap_complete 4.5.60 4.5.61 4.5.61 4.5.61 indexmap 2.12.0 2.12.1 2.12.1 2.12.1 tower-http 0.6.6 0.6.7 0.6.7 0.6.7 tracing 0.1.41 0.1.43 0.1.43 0.1.43 tracing-subscriber 0.3.20 0.3.22 0.3.22 0.3.22 name old req compatible latest new req ==== ======= ========== ====== ======= pulldown-cmark-to-cmark 21.0.0 21.1.0 21.1.0 21.1.0 ```
Merge pull request #2965 from Kobzol/publish-environment
2025-12-28 17:21:52 -05:00 · 2025-12-01 00:37:48 +00:00 · 2025-11-25 10:47:21 +00:00 · 2025-11-25 09:41:27 +01:00 · 2025-11-20 01:44:03 +00:00 · 2025-11-19 17:36:49 -08:00
23 changed files with 161 additions and 131 deletions
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -54,6 +54,7 @@ jobs:
    permissions:
      # Required for OIDC token exchange
      id-token: write
+    environment: publish
    steps:
      - uses: actions/checkout@v5
      - name: Install Rust (rustup)
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # Changelog

+## mdBook 0.5.1
+[v0.5.0...v0.5.1](https://github.com/rust-lang/mdBook/compare/v0.5.0...v0.5.1)
+
+### Changed
+- Changed the scrollbar background to be transparent.
+  [#2932](https://github.com/rust-lang/mdBook/pull/2932)
+- Ignore invalid top-level environment variable config keys. This allows setting things like `MDBOOK_VERSION` to not cause an error.
+  [#2952](https://github.com/rust-lang/mdBook/pull/2952)
+
+### Fixed
+- Fixed the sidebar heading nav to have the correct nesting levels.
+  [#2953](https://github.com/rust-lang/mdBook/pull/2953)
+- Various Font Awesome fixes and improvements.
+  [#2951](https://github.com/rust-lang/mdBook/pull/2951)
+
 ## mdBook 0.5.0
 [v0.4.52...v0.5.0](https://github.com/rust-lang/mdBook/compare/v0.4.52...v0.5.0)

@@ -75,7 +90,7 @@ The following is a summary of the changes that may require your attention when u

 - Updated to a newer version of `pulldown-cmark`. This brings a large number of fixes to markdown processing.
  [#2401](https://github.com/rust-lang/mdBook/pull/2401)
- The font-awesome font is no longer loaded as a font. Instead, the corresponding SVG is embedded in the output for the corresponding `<i>` tags. Additionally, a handlebars helper has been added for the `hbs` files.
+- The font-awesome font is no longer loaded as a font. Instead, the corresponding SVG is embedded in the output for the corresponding `<i>` tags. Additionally, a handlebars helper has been added for the `hbs` files. This also updates the version from 4.7.0 to 6.2.0, which means some of the icon names and styles have changed. Most of the free icons are in the "solid" set. See the [free icon set](https://fontawesome.com/v6/search) for the available icons.
  [#1330](https://github.com/rust-lang/mdBook/pull/1330)
 - Changed all internal HTML IDs to have an `mdbook-` prefix. This helps avoid namespace conflicts with header IDs.
  [#2808](https://github.com/rust-lang/mdBook/pull/2808)
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -221,7 +221,7 @@ Instructions for mdBook maintainers to publish a new release:

 1. Create a PR that bumps the version and updates the changelog:
    1. `git fetch upstream`
-    2. `git checkout -B bump-version upstream/master`
+    2. `git checkout -B bump-version upstream/master && git branch --set-upstream-to=origin/bump-version`
    3. `cargo xtask bump <BUMP>`
       - This will update the version of all the crates.
       - `cargo set-version` must first be installed with `cargo install cargo-edit`.
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -52,18 +52,18 @@ dependencies = [

 [[package]]
 name = "anstyle-query"
-version = "1.1.4"
+version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e231f6134f61b71076a3eab506c379d4f36122f2af15a9ff04415ea4c3339e2"
+checksum = "40c48f72fd53cd289104fc64099abca73db4166ad86ea0b4341abe65af83dadc"
 dependencies = [
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]

 [[package]]
 name = "anstyle-svg"
-version = "0.1.11"
+version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26b9ec8c976eada1b0f9747a3d7cc4eae3bef10613e443746e7487f26c872fde"
+checksum = "e22d9f3dea8bbda97c75bd0f0203e23f1e190d6d6f27a40e10063946dc4d4362"
 dependencies = [
 "anstyle",
 "anstyle-lossy",
@@ -74,13 +74,13 @@ dependencies = [

 [[package]]
 name = "anstyle-wincon"
-version = "3.0.10"
+version = "3.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e0633414522a32ffaac8ac6cc8f748e090c5717661fddeea04219e2344f5f2a"
+checksum = "291e6a250ff86cd4a820112fb8898808a366d8f9f58ce16d1f538353ad55747d"
 dependencies = [
 "anstyle",
 "once_cell_polyfill",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]

 [[package]]
@@ -97,9 +97,9 @@ checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0"

 [[package]]
 name = "axum"
-version = "0.8.6"
+version = "0.8.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a18ed336352031311f4e0b4dd2ff392d4fbb370777c9d18d7fc9d7359f73871"
+checksum = "5b098575ebe77cb6d14fc7f32749631a6e44edbef6b796f89b020e99ba20d425"
 dependencies = [
 "axum-core",
 "base64",
@@ -205,9 +205,9 @@ dependencies = [

 [[package]]
 name = "bytes"
-version = "1.10.1"
+version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d71b6127be86fdcfddb610f7182ac57211d4b18a3e9c82eb2d17662f2227ad6a"
+checksum = "b35204fbdc0b3f4446b89fc1ac2cf84a8a68971995d0bf2e925ec7cd960f9cb3"

 [[package]]
 name = "cfg-if"
@@ -217,18 +217,18 @@ checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"

 [[package]]
 name = "clap"
-version = "4.5.51"
+version = "4.5.53"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c26d721170e0295f191a69bd9a1f93efcdb0aff38684b61ab5750468972e5f5"
+checksum = "c9e340e012a1bf4935f5282ed1436d1489548e8f72308207ea5df0e23d2d03f8"
 dependencies = [
 "clap_builder",
 ]

 [[package]]
 name = "clap_builder"
-version = "4.5.51"
+version = "4.5.53"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75835f0c7bf681bfd05abe44e965760fea999a5286c6eb2d59883634fd02011a"
+checksum = "d76b5d13eaa18c901fd2f7fca939fefe3a0727a953561fefdf3b2922b8569d00"
 dependencies = [
 "anstream",
 "anstyle",
@@ -239,9 +239,9 @@ dependencies = [

 [[package]]
 name = "clap_complete"
-version = "4.5.60"
+version = "4.5.61"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e602857739c5a4291dfa33b5a298aeac9006185229a700e5810a3ef7272d971"
+checksum = "39615915e2ece2550c0149addac32fb5bd312c657f43845bb9088cb9c8a7c992"
 dependencies = [
 "clap",
 ]
@@ -303,9 +303,9 @@ checksum = "d0a5c400df2834b80a4c3327b3aad3a4c4cd4de0629063962b03235697506a28"

 [[package]]
 name = "crypto-common"
-version = "0.1.6"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
+checksum = "78c8292055d1c1df0cce5d180393dc8cce0abec0a7102adb6c7b1eef6016d60a"
 dependencies = [
 "generic-array",
 "typenum",
@@ -332,7 +332,7 @@ dependencies = [
 "proc-macro2",
 "quote",
 "strsim",
- "syn 2.0.108",
+ "syn 2.0.111",
 ]

 [[package]]
@@ -343,7 +343,7 @@ checksum = "fc34b93ccb385b40dc71c6fceac4b2ad23662c7eeb248cf10d529b7e055b6ead"
 dependencies = [
 "darling_core",
 "quote",
- "syn 2.0.108",
+ "syn 2.0.111",
 ]

 [[package]]
@@ -370,7 +370,7 @@ dependencies = [
 "darling",
 "proc-macro2",
 "quote",
- "syn 2.0.108",
+ "syn 2.0.111",
 ]

 [[package]]
@@ -380,7 +380,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ab63b0e2bf4d5928aff72e83a7dace85d7bba5fe12dcc3c5a572d78caffd3f3c"
 dependencies = [
 "derive_builder_core",
- "syn 2.0.108",
+ "syn 2.0.111",
 ]

 [[package]]
@@ -514,7 +514,7 @@ checksum = "162ee34ebcb7c64a8abebc059ce0fee27c2262618d7b60ed8faf72fef13c3650"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.108",
+ "syn 2.0.111",
 ]

 [[package]]
@@ -546,9 +546,9 @@ dependencies = [

 [[package]]
 name = "generic-array"
-version = "0.14.9"
+version = "0.14.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bb6743198531e02858aeaea5398fcc883e71851fcbcb5a2f773e2fb6cb1edf2"
+checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
 dependencies = [
 "typenum",
 "version_check",
@@ -624,9 +624,9 @@ dependencies = [

 [[package]]
 name = "hashbrown"
-version = "0.16.0"
+version = "0.16.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5419bdc4f6a9207fbeba6d11b604d481addf78ecd10c11ad51e76c2f6482748d"
+checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"

 [[package]]
 name = "hex"
@@ -670,12 +670,11 @@ dependencies = [

 [[package]]
 name = "http"
-version = "1.3.1"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f4a85d31aea989eead29a3aaf9e1115a180df8282431156e533de47660892565"
+checksum = "e3ba2a386d7f85a81f119ad7498ebe444d2e22c2af0b86b069416ace48b3311a"
 dependencies = [
 "bytes",
- "fnv",
 "itoa",
 ]

@@ -722,9 +721,9 @@ checksum = "df3b46402a9d5adb4c86a0cf463f42e19994e3ee891101b1841f30a545cb49a9"

 [[package]]
 name = "hyper"
-version = "1.7.0"
+version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb3aa54a13a0dfe7fbe3a59e0c76093041720fdc77b110cc0fc260fafb4dc51e"
+checksum = "2ab2d4f250c3d7b1c9fcdff1cece94ea4e2dfbec68614f7b87cb205f24ca9d11"
 dependencies = [
 "atomic-waker",
 "bytes",
@@ -743,9 +742,9 @@ dependencies = [

 [[package]]
 name = "hyper-util"
-version = "0.1.17"
+version = "0.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c6995591a8f1380fcb4ba966a252a4b29188d51d2b89e3a252f5305be65aea8"
+checksum = "52e9a2a24dc5c6821e71a7030e1e14b7b632acac55c40e9d2e082c621261bb56"
 dependencies = [
 "bytes",
 "futures-core",
@@ -781,9 +780,9 @@ dependencies = [

 [[package]]
 name = "indexmap"
-version = "2.12.0"
+version = "2.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6717a8d2a5a929a1a2eb43a12812498ed141a0bcfb7e8f7844fbdbe4303bba9f"
+checksum = "0ad4bb2b565bca0645f4d68c5c9af97fba094e9791da685bf83cb5f3ce74acf2"
 dependencies = [
 "equivalent",
 "hashbrown",
@@ -936,7 +935,7 @@ checksum = "ac84fd3f360fcc43dc5f5d186f02a94192761a080e8bc58621ad4d12296a58cf"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.108",
+ "syn 2.0.111",
 ]

 [[package]]
@@ -956,7 +955,7 @@ checksum = "47e1ffaa40ddd1f3ed91f717a33c8c0ee23fff369e3aa8772b9605cc1d22f4c3"

 [[package]]
 name = "mdbook"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
 "anyhow",
 "axum",
@@ -996,7 +995,7 @@ version = "0.0.0"

 [[package]]
 name = "mdbook-core"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
 "anyhow",
 "regex",
@@ -1009,7 +1008,7 @@ dependencies = [

 [[package]]
 name = "mdbook-driver"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
 "anyhow",
 "indexmap",
@@ -1031,7 +1030,7 @@ dependencies = [

 [[package]]
 name = "mdbook-html"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
 "anyhow",
 "ego-tree",
@@ -1056,7 +1055,7 @@ dependencies = [

 [[package]]
 name = "mdbook-markdown"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
 "pulldown-cmark",
 "regex",
@@ -1065,7 +1064,7 @@ dependencies = [

 [[package]]
 name = "mdbook-preprocessor"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
 "anyhow",
 "mdbook-core",
@@ -1085,7 +1084,7 @@ dependencies = [

 [[package]]
 name = "mdbook-renderer"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
 "anyhow",
 "mdbook-core",
@@ -1095,7 +1094,7 @@ dependencies = [

 [[package]]
 name = "mdbook-summary"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
 "anyhow",
 "mdbook-core",
@@ -1280,9 +1279,9 @@ checksum = "9b4f627cb1b25917193a259e49bdad08f671f8d9708acfd5fe0a8c1455d87220"

 [[package]]
 name = "pest"
-version = "2.8.3"
+version = "2.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "989e7521a040efde50c3ab6bbadafbe15ab6dc042686926be59ac35d74607df4"
+checksum = "cbcfd20a6d4eeba40179f05735784ad32bdaef05ce8e8af05f180d45bb3e7e22"
 dependencies = [
 "memchr",
 "ucd-trie",
@@ -1290,9 +1289,9 @@ dependencies = [

 [[package]]
 name = "pest_derive"
-version = "2.8.3"
+version = "2.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "187da9a3030dbafabbbfb20cb323b976dc7b7ce91fcd84f2f74d6e31d378e2de"
+checksum = "51f72981ade67b1ca6adc26ec221be9f463f2b5839c7508998daa17c23d94d7f"
 dependencies = [
 "pest",
 "pest_generator",
@@ -1300,22 +1299,22 @@ dependencies = [

 [[package]]
 name = "pest_generator"
-version = "2.8.3"
+version = "2.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49b401d98f5757ebe97a26085998d6c0eecec4995cad6ab7fc30ffdf4b052843"
+checksum = "dee9efd8cdb50d719a80088b76f81aec7c41ed6d522ee750178f83883d271625"
 dependencies = [
 "pest",
 "pest_meta",
 "proc-macro2",
 "quote",
- "syn 2.0.108",
+ "syn 2.0.111",
 ]

 [[package]]
 name = "pest_meta"
-version = "2.8.3"
+version = "2.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72f27a2cfee9f9039c4d86faa5af122a0ac3851441a34865b8a043b46be0065a"
+checksum = "bf1d70880e76bdc13ba52eafa6239ce793d85c8e43896507e43dd8984ff05b82"
 dependencies = [
 "pest",
 "sha2",
@@ -1453,18 +1452,18 @@ checksum = "007d8adb5ddab6f8e3f491ac63566a7d5002cc7ed73901f72057943fa71ae1ae"

 [[package]]
 name = "pulldown-cmark-to-cmark"
-version = "21.0.0"
+version = "21.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5b6a0769a491a08b31ea5c62494a8f144ee0987d86d670a8af4df1e1b7cde75"
+checksum = "8246feae3db61428fd0bb94285c690b460e4517d83152377543ca802357785f1"
 dependencies = [
 "pulldown-cmark",
 ]

 [[package]]
 name = "quote"
-version = "1.0.41"
+version = "1.0.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce25767e7b499d1b604768e7cde645d14cc8584231ea6b295e9c9eb22c02e1d1"
+checksum = "a338cc41d27e6cc6dce6cefc13a0729dfbb81c262b1f519331575dd80ef3067f"
 dependencies = [
 "proc-macro2",
 ]
@@ -1650,7 +1649,7 @@ checksum = "d540f220d3187173da220f885ab66608367b6574e925011a9353e4badda91d79"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.108",
+ "syn 2.0.111",
 ]

 [[package]]
@@ -1850,9 +1849,9 @@ dependencies = [

 [[package]]
 name = "syn"
-version = "2.0.108"
+version = "2.0.111"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da58917d35242480a05c2897064da0a80589a2a0476c9a3f2fdc83b53502e917"
+checksum = "390cc9a294ab71bdb1aa2e99d13be9c753cd2d7bd6560c77118597410c4d2e87"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -1916,7 +1915,7 @@ checksum = "3ff15c8ecd7de3849db632e14d18d2571fa09dfc5ed93479bc4485c7a517c913"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.108",
+ "syn 2.0.111",
 ]

 [[package]]
@@ -1951,7 +1950,7 @@ checksum = "af407857209536a95c8e56f8231ef2c2e2aff839b22e07a1ffcbc617e9db9fa5"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.108",
+ "syn 2.0.111",
 ]

 [[package]]
@@ -1968,9 +1967,9 @@ dependencies = [

 [[package]]
 name = "tokio-util"
-version = "0.7.16"
+version = "0.7.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14307c986784f72ef81c89db7d9e28d6ac26d16213b109ea501696195e6e3ce5"
+checksum = "2efa149fe76073d6e8fd97ef4f4eca7b67f599660115591483572e406e165594"
 dependencies = [
 "bytes",
 "futures-core",
@@ -2042,9 +2041,9 @@ dependencies = [

 [[package]]
 name = "tower-http"
-version = "0.6.6"
+version = "0.6.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "adc82fd73de2a9722ac5da747f12383d2bfdb93591ee6c58486e0097890f05f2"
+checksum = "9cf146f99d442e8e68e585f5d798ccd3cad9a7835b917e09728880a862706456"
 dependencies = [
 "bitflags 2.10.0",
 "bytes",
@@ -2080,9 +2079,9 @@ checksum = "8df9b6e13f2d32c91b9bd719c00d1958837bc7dec474d94952798cc8e69eeec3"

 [[package]]
 name = "tracing"
-version = "0.1.41"
+version = "0.1.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "784e0ac535deb450455cbfa28a6f0df145ea1bb7ae51b821cf5e7927fdcfbdd0"
+checksum = "2d15d90a0b5c19378952d479dc858407149d7bb45a14de0142f6c534b16fc647"
 dependencies = [
 "log",
 "pin-project-lite",
@@ -2092,20 +2091,20 @@ dependencies = [

 [[package]]
 name = "tracing-attributes"
-version = "0.1.30"
+version = "0.1.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81383ab64e72a7a8b8e13130c49e3dab29def6d0c7d76a03087b3cf71c5c6903"
+checksum = "7490cfa5ec963746568740651ac6781f701c9c5ea257c58e057f3ba8cf69e8da"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.108",
+ "syn 2.0.111",
 ]

 [[package]]
 name = "tracing-core"
-version = "0.1.34"
+version = "0.1.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9d12581f227e93f094d3af2ae690a574abb8a2b9b7a96e7cfe9647b2b617678"
+checksum = "7a04e24fab5c89c6a36eb8558c9656f30d81de51dfa4d3b45f26b21d61fa0a6c"
 dependencies = [
 "once_cell",
 "valuable",
@@ -2124,9 +2123,9 @@ dependencies = [

 [[package]]
 name = "tracing-subscriber"
-version = "0.3.20"
+version = "0.3.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2054a14f5307d601f88daf0553e1cbf472acc4f2c51afab632431cdcd72124d5"
+checksum = "2f30143827ddab0d256fd843b7a66d164e9f271cfa0dde49142c5ca0ca291f1e"
 dependencies = [
 "matchers",
 "nu-ansi-term",
@@ -2195,9 +2194,9 @@ checksum = "09cc8ee72d2a9becf2f2febe0205bbed8fc6615b7cb429ad062dc7b7ddd036a9"

 [[package]]
 name = "utf8-width"
-version = "0.1.7"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86bd8d4e895da8537e5315b8254664e6b769c4ff3db18321b297a1e7004392e3"
+checksum = "1292c0d970b54115d14f2492fe0170adf21d68a1de108eebc51c1df4f346a091"

 [[package]]
 name = "utf8parse"
@@ -2354,9 +2353,9 @@ checksum = "d6bbff5f0aada427a1e5a6da5f1f98158182f26556f345ac9e04d36d0ebed650"

 [[package]]
 name = "winnow"
-version = "0.7.13"
+version = "0.7.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21a0236b59786fed61e2a80582dd500fe61f18b5dca67a4a067d0bc9039339cf"
+checksum = "5a5364e9d77fcdeeaa6062ced926ee3381faa2ee02d3eb83a5c27a8825540829"

 [[package]]
 name = "wit-bindgen"
@@ -2381,20 +2380,20 @@ version = "0.0.0"

 [[package]]
 name = "zerocopy"
-version = "0.8.27"
+version = "0.8.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0894878a5fa3edfd6da3f88c4805f4c8558e2b996227a3d864f47fe11e38282c"
+checksum = "fd74ec98b9250adb3ca554bdde269adf631549f51d8a8f8f0a10b50f1cb298c3"
 dependencies = [
 "zerocopy-derive",
 ]

 [[package]]
 name = "zerocopy-derive"
-version = "0.8.27"
+version = "0.8.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88d2b8d9c68ad2b9e4340d7832716a4d21a22a1154777ad56ea55c51a9cf3831"
+checksum = "d8a8d209fdf45cf5138cbb5a506f6b52522a25afccc534d1475dad8e31105c6a"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.108",
+ "syn 2.0.111",
 ]
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,9 +26,9 @@ rust-version = "1.88.0" # Keep in sync with installation.md and .github/workflow

 [workspace.dependencies]
 anyhow = "1.0.100"
-axum = "0.8.6"
-clap = { version = "4.5.51", features = ["cargo", "wrap_help"] }
-clap_complete = "4.5.60"
+axum = "0.8.7"
+clap = { version = "4.5.53", features = ["cargo", "wrap_help"] }
+clap_complete = "4.5.61"
 ego-tree = "0.10.0"
 elasticlunr-rs = "3.0.2"
 font-awesome-as-a-crate = "0.3.0"
@@ -37,15 +37,15 @@ glob = "0.3.3"
 handlebars = "6.3.2"
 hex = "0.4.3"
 html5ever = "0.35.0"
-indexmap = "2.12.0"
+indexmap = "2.12.1"
 ignore = "0.4.25"
-mdbook-core = { path = "crates/mdbook-core", version = "0.5.0" }
-mdbook-driver = { path = "crates/mdbook-driver", version = "0.5.0" }
-mdbook-html = { path = "crates/mdbook-html", version = "0.5.0" }
-mdbook-markdown = { path = "crates/mdbook-markdown", version = "0.5.0" }
-mdbook-preprocessor = { path = "crates/mdbook-preprocessor", version = "0.5.0" }
-mdbook-renderer = { path = "crates/mdbook-renderer", version = "0.5.0" }
-mdbook-summary = { path = "crates/mdbook-summary", version = "0.5.0" }
+mdbook-core = { path = "crates/mdbook-core", version = "0.5.1" }
+mdbook-driver = { path = "crates/mdbook-driver", version = "0.5.1" }
+mdbook-html = { path = "crates/mdbook-html", version = "0.5.1" }
+mdbook-markdown = { path = "crates/mdbook-markdown", version = "0.5.1" }
+mdbook-preprocessor = { path = "crates/mdbook-preprocessor", version = "0.5.1" }
+mdbook-renderer = { path = "crates/mdbook-renderer", version = "0.5.1" }
+mdbook-summary = { path = "crates/mdbook-summary", version = "0.5.1" }
 memchr = "2.7.6"
 notify = "8.2.0"
 notify-debouncer-mini = "0.7.0"
@@ -64,14 +64,14 @@ tempfile = "3.23.0"
 tokio = "1.48.0"
 toml = "0.9.8"
 topological-sort = "0.2.2"
-tower-http = "0.6.6"
-tracing = "0.1.41"
-tracing-subscriber = { version = "0.3.20", features = ["env-filter"] }
+tower-http = "0.6.7"
+tracing = "0.1.43"
+tracing-subscriber = { version = "0.3.22", features = ["env-filter"] }
 walkdir = "2.5.0"

 [package]
 name = "mdbook"
-version = "0.5.0"
+version = "0.5.1"
 authors = [
    "Mathieu David <mathieudavid@mathieudavid.org>",
    "Michael-F-Bryan <michaelfbryan@gmail.com>",
--- a/crates/mdbook-core/Cargo.toml
+++ b/crates/mdbook-core/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mdbook-core"
-version = "0.5.0"
+version = "0.5.1"
 description = "The base support library for mdbook, intended for internal use only"
 edition.workspace = true
 license.workspace = true
--- a/crates/mdbook-core/src/config.rs
+++ b/crates/mdbook-core/src/config.rs
@@ -43,6 +43,7 @@
 //! # run().unwrap()
 //! ```

+use crate::static_regex;
 use crate::utils::{TomlExt, fs, log_backtrace};
 use anyhow::{Context, Error, Result, bail};
 use serde::{Deserialize, Serialize};
@@ -149,15 +150,23 @@ impl Config {
    pub fn update_from_env(&mut self) -> Result<()> {
        debug!("Updating the config from environment variables");

+        static_regex!(
+            VALID_KEY,
+            r"^(:?book|build|rust|output|preprocessor)(:?$|\.)"
+        );
+
        let overrides =
            env::vars().filter_map(|(key, value)| parse_env(&key).map(|index| (index, value)));

        for (key, value) in overrides {
-            if key == "log" {
-                // MDBOOK_LOG is used to control logging.
+            trace!("{} => {}", key, value);
+            if !VALID_KEY.is_match(&key) {
+                // Ignore environment variables for other top-level things.
+                // This allows users to set things like `MDBOOK_VERSION` or
+                // `MDBOOK_DOWNLOAD_URL` for their own scripts and not
+                // interfere with how the config is loaded.
                continue;
            }
-            trace!("{} => {}", key, value);
            let parsed_value = serde_json::from_str(&value)
                .unwrap_or_else(|_| serde_json::Value::String(value.to_string()));

--- a/crates/mdbook-driver/Cargo.toml
+++ b/crates/mdbook-driver/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mdbook-driver"
-version = "0.5.0"
+version = "0.5.1"
 description = "High-level library for running mdBook"
 edition.workspace = true
 license.workspace = true
--- a/crates/mdbook-html/Cargo.toml
+++ b/crates/mdbook-html/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mdbook-html"
-version = "0.5.0"
+version = "0.5.1"
 description = "mdBook HTML renderer"
 edition.workspace = true
 license.workspace = true
--- a/crates/mdbook-html/front-end/css/chrome.css
+++ b/crates/mdbook-html/front-end/css/chrome.css
@@ -1,7 +1,7 @@
 /* CSS for UI elements (a.k.a. chrome) */

 html {
-    scrollbar-color: var(--scrollbar) var(--bg);
+    scrollbar-color: var(--scrollbar) transparent;
 }
 #mdbook-searchresults a,
 .content a:link,
--- a/crates/mdbook-html/front-end/templates/toc.js.hbs
+++ b/crates/mdbook-html/front-end/templates/toc.js.hbs
@@ -392,7 +392,7 @@ window.customElements.define('mdbook-sidebar-scrollbox', MDBookSidebarScrollbox)
                    stack.push({level: nextLevel, ol: ol});
                }
            } else if (level < currentLevel) {
-                while (stack.length > 1 && stack[stack.length - 1].level >= level) {
+                while (stack.length > 1 && stack[stack.length - 1].level > level) {
                    stack.pop();
                }
            }
--- a/crates/mdbook-html/src/html/tree.rs
+++ b/crates/mdbook-html/src/html/tree.rs
@@ -1030,14 +1030,14 @@ where
            let i_el = node.value().as_element().unwrap();
            let classes = i_el.attr("class").unwrap_or_default();
            for class in classes.split(" ") {
-                if let Some(class) = class.strip_prefix("fa-") {
-                    icon = class.to_owned();
-                } else if class == "fa" {
+                if matches!(class, "fa" | "fa-regular") {
                    type_ = fa::Type::Regular;
-                } else if class == "fas" {
+                } else if matches!(class, "fas" | "fa-solid") {
                    type_ = fa::Type::Solid;
-                } else if class == "fab" {
+                } else if matches!(class, "fab" | "fa-brands") {
                    type_ = fa::Type::Brands;
+                } else if let Some(class) = class.strip_prefix("fa-") {
+                    icon = class.to_owned();
                } else {
                    new_classes += " ";
                    new_classes += class;
--- a/crates/mdbook-markdown/Cargo.toml
+++ b/crates/mdbook-markdown/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mdbook-markdown"
-version = "0.5.0"
+version = "0.5.1"
 description = "Markdown processing used in mdBook"
 edition.workspace = true
 license.workspace = true
--- a/crates/mdbook-preprocessor/Cargo.toml
+++ b/crates/mdbook-preprocessor/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mdbook-preprocessor"
-version = "0.5.0"
+version = "0.5.1"
 description = "Library to assist implementing an mdBook preprocessor"
 edition.workspace = true
 license.workspace = true
--- a/crates/mdbook-renderer/Cargo.toml
+++ b/crates/mdbook-renderer/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mdbook-renderer"
-version = "0.5.0"
+version = "0.5.1"
 description = "Library to assist implementing an mdBook renderer"
 edition.workspace = true
 license.workspace = true
--- a/crates/mdbook-summary/Cargo.toml
+++ b/crates/mdbook-summary/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mdbook-summary"
-version = "0.5.0"
+version = "0.5.1"
 description = "Summary parser for mdBook"
 edition.workspace = true
 license.workspace = true
--- a/guide/src/format/configuration/renderers.md
+++ b/guide/src/format/configuration/renderers.md
@@ -143,9 +143,7 @@ The following configuration options are available:
  those labels. Defaults to `false`.
 - **git-repository-url:**  A url to the git repository for the book. If provided
  an icon link will be output in the menu bar of the book.
- **git-repository-icon:** The FontAwesome icon class to use for the git
-  repository link. Defaults to `fab-github` which looks like <i class="fa fab-github"></i>.
-  If you are not using GitHub, another option to consider is `fa-code-fork` which looks like <i class="fas fa-code-fork"></i>.
+- **git-repository-icon:** The Font Awesome icon class to use for the git repository link. Defaults to `fab-github` which looks like <i class="fab fa-github"></i>. If you are not using GitHub, another option to consider is `fas-code-fork` which looks like <i class="fas fa-code-fork"></i>. The start of the string should be `fa-` for regular icons, `fas-` for solid icons, or `fab-` for brand icons. See the [free icon set](https://fontawesome.com/v6/search) for the available icons.
 - **edit-url-template:** Edit url template, when provided shows a
  "Suggest an edit" button (which looks like <i class="fas fa-pencil"></i>) for directly jumping to editing the currently
  viewed page. For e.g. GitHub projects set this to
--- a/guide/src/format/mdbook.md
+++ b/guide/src/format/mdbook.md
@@ -340,7 +340,7 @@ HTML tags with class `hidden` will not be shown.

 ## Font-Awesome icons

-mdBook includes a copy of [Font Awesome Free's](https://fontawesome.com)
+mdBook includes a copy of version 6 of [Font Awesome Free's](https://fontawesome.com)
 MIT-licensed SVG files. It emulates the `<i>` syntax, but converts the results
 to inline SVG. Only the regular, solid, and brands icons are included; paid
 features like the light icons are not.
@@ -348,7 +348,9 @@ features like the light icons are not.
 For example, given this HTML syntax:

 ```hbs
-The result looks like this: <i class="fas fa-print"></i>
+The result looks like this: <i class="fa-solid fa-print"></i>
 ```

-The result looks like this: <i class="fas fa-print"></i>
+The result looks like this: <i class="fa-solid fa-print"></i>
+
+See the [free icon set](https://fontawesome.com/v6/search) for the available icons.
--- a/guide/src/format/theme/index-hbs.md
+++ b/guide/src/format/theme/index-hbs.md
@@ -95,7 +95,7 @@ MIT-licensed SVG files. It accepts three positional arguments:
 1. Type: one of "solid", "regular", and "brands" (light and duotone are not
   currently supported)
 2. Icon: anything chosen from the
-   [free icon set](https://fontawesome.com/icons?d=gallery&m=free)
+   [free icon set](https://fontawesome.com/v6/search)
 3. ID (optional): if included, an HTML ID attribute will be added to the
   icon's wrapping `<span>` tag

--- a/tests/gui/heading-nav-collapsed.goml
+++ b/tests/gui/heading-nav-collapsed.goml
@@ -10,6 +10,8 @@ assert-text: (".current-header", "Heading 1")
 assert-attribute: ("li:has(> span > a[href='#heading-12'])", {"class": "header-item"})
 assert-attribute: ("li:has(> span > a[href='#heading-21'])", {"class": "header-item"})

+assert-property: ("div.on-this-page", {"innerHTML": '<ol class="section"><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-1" class="header-in-summary current-header">Heading 1</a></span><ol class="section"><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-11" class="header-in-summary">Heading 1.1</a></span></li><li class="header-item"><span class="chapter-link-wrapper"><a href="#heading-12" class="header-in-summary">Heading 1.2</a><a class="chapter-fold-toggle header-toggle"><div>❱</div></a></span><ol class="section"><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-121" class="header-in-summary">Heading 1.2.1</a></span></li><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-122" class="header-in-summary">Heading 1.2.2</a></span></li></ol></li><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-13" class="header-in-summary">Heading 1.3</a></span></li></ol></li><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-2" class="header-in-summary">Heading 2</a></span><ol class="section"><li class="header-item"><span class="chapter-link-wrapper"><a href="#heading-21" class="header-in-summary">Heading 2.1</a><a class="chapter-fold-toggle header-toggle"><div>❱</div></a></span><ol class="section"><li class="header-item"><span class="chapter-link-wrapper"><a href="#heading-211" class="header-in-summary">Heading 2.1.1</a><a class="chapter-fold-toggle header-toggle"><div>❱</div></a></span><ol class="section"><li class="header-item"><span class="chapter-link-wrapper"><a href="#heading-2111" class="header-in-summary">Heading 2.1.1.1</a><a class="chapter-fold-toggle header-toggle"><div>❱</div></a></span><ol class="section"><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-21111" class="header-in-summary">Heading 2.1.1.1.1</a></span></li></ol></li></ol></li></ol></li></ol></li></ol>'})
+
 // Click 1.2, expands it.
 click: "a.header-in-summary[href='#heading-12']"
 assert-attribute: ("li:has(> span > a[href='#heading-12'])", {"class": "header-item expanded"})
--- a/tests/testsuite/config.rs
+++ b/tests/testsuite/config.rs
@@ -213,10 +213,11 @@ unknown field `title`, expected `edition`
 fn env_invalid_config_key() {
    BookTest::from_dir("config/empty").run("build", |cmd| {
        cmd.env("MDBOOK_FOO", "testing")
-            .expect_failure()
            .expect_stdout(str![[""]])
            .expect_stderr(str![[r#"
-ERROR invalid key `foo`
+ INFO Book building has started
+ INFO Running the html backend
+ INFO HTML book written to `[ROOT]/book`

 "#]]);
    });
--- a/tests/testsuite/rendering/fontawesome/expected/fa.html
+++ b/tests/testsuite/rendering/fontawesome/expected/fa.html
@@ -3,4 +3,5 @@
 <p><span class="fa-svg"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M272 304h-96C78.8 304 0 382.8 0 480c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32C448 382.8 369.2 304 272 304zM48.99 464C56.89 400.9 110.8 352 176 352h96c65.16 0 119.1 48.95 127 112H48.99zM224 256c70.69 0 128-57.31 128-128c0-70.69-57.31-128-128-128S96 57.31 96 128C96 198.7 153.3 256 224 256zM224 48c44.11 0 80 35.89 80 80c0 44.11-35.89 80-80 80S144 172.1 144 128C144 83.89 179.9 48 224 48z"/></svg></span></p>
 <p><span class="fa-svg"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M448 48V384C385 407 366 416 329 416C266 416 242 384 179 384C159 384 143 388 128 392V328C143 324 159 320 179 320C242 320 266 352 329 352C349 352 364 349 384 343V135C364 141 349 144 329 144C266 144 242 112 179 112C128 112 104 133 64 141V448C64 466 50 480 32 480S0 466 0 448V64C0 46 14 32 32 32S64 46 64 64V77C104 69 128 48 179 48C242 48 266 80 329 80C366 80 385 71 448 48Z"/></svg></span></p>
 <p><i class="fas fa-heart">Text prevents translation.</i></p>
-<p><i class="fa fa-does-not-exist"></i></p>
+<p><i class="fa fa-does-not-exist"></i></p>
+<p><span class="fa-svg"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M288 192h17.1c22.1 38.3 63.5 64 110.9 64c11 0 21.8-1.4 32-4v4 32V480c0 17.7-14.3 32-32 32s-32-14.3-32-32V339.2L248 448h56c17.7 0 32 14.3 32 32s-14.3 32-32 32H160c-53 0-96-43-96-96V192.5c0-16.1-12-29.8-28-31.8l-7.9-1C10.5 157.6-1.9 141.6 .2 124s18.2-30 35.7-27.8l7.9 1c48 6 84.1 46.8 84.1 95.3v85.3c34.4-51.7 93.2-85.8 160-85.8zm160 26.5v0c-10 3.5-20.8 5.5-32 5.5c-28.4 0-54-12.4-71.6-32h0c-3.7-4.1-7-8.5-9.9-13.2C325.3 164 320 146.6 320 128v0V32 12 10.7C320 4.8 324.7 .1 330.6 0h.2c3.3 0 6.4 1.6 8.4 4.2l0 .1L352 21.3l27.2 36.3L384 64h64l4.8-6.4L480 21.3 492.8 4.3l0-.1c2-2.6 5.1-4.2 8.4-4.2h.2C507.3 .1 512 4.8 512 10.7V12 32v96c0 17.3-4.6 33.6-12.6 47.6c-11.3 19.8-29.6 35.2-51.4 42.9zM400 128c0-8.8-7.2-16-16-16s-16 7.2-16 16s7.2 16 16 16s16-7.2 16-16zm48 16c8.8 0 16-7.2 16-16s-7.2-16-16-16s-16 7.2-16 16s7.2 16 16 16z"/></svg></span></p>
--- a/tests/testsuite/rendering/fontawesome/src/fa.md
+++ b/tests/testsuite/rendering/fontawesome/src/fa.md
@@ -9,3 +9,5 @@
 <i class="fas fa-heart">Text prevents translation.</i>

 <i class="fa fa-does-not-exist"></i>
+
+<i class="fa-solid fa-cat"></i>
Author	SHA1	Message	Date
github-actions[bot]	8bd3c52abf	Update cargo dependencies ``` name old req compatible latest new req ==== ======= ========== ====== ======= axum 0.8.6 0.8.7 0.8.7 0.8.7 clap 4.5.51 4.5.53 4.5.53 4.5.53 clap_complete 4.5.60 4.5.61 4.5.61 4.5.61 indexmap 2.12.0 2.12.1 2.12.1 2.12.1 tower-http 0.6.6 0.6.7 0.6.7 0.6.7 tracing 0.1.41 0.1.43 0.1.43 0.1.43 tracing-subscriber 0.3.20 0.3.22 0.3.22 0.3.22 name old req compatible latest new req ==== ======= ========== ====== ======= pulldown-cmark-to-cmark 21.0.0 21.1.0 21.1.0 21.1.0 ```	2025-12-01 00:37:48 +00:00
Marco Ieni	de8202a67f	Merge pull request #2965 from Kobzol/publish-environment Add publish environment to deploy job	2025-11-25 10:47:21 +00:00
Jakub Beránek	8f277a0d39	Add publish environment to deploy job	2025-11-25 09:41:27 +01:00
Eric Huss	d63aeb6526	Merge pull request #2955 from ehuss/bump-version Update to 0.5.1	2025-11-20 01:44:03 +00:00
Eric Huss	eb83d080f6	Update to 0.5.1	2025-11-19 17:36:49 -08:00
Eric Huss	710ec2755d	Merge pull request #2932 from vitorfloriano/scrollbar-bg-transparent Change scrollbar background to transparent	2025-11-20 01:22:36 +00:00
Eric Huss	5d64d0e5f2	Merge pull request #2953 from ehuss/fix-heading-nav-level Fix heading nav level	2025-11-20 01:13:35 +00:00
Eric Huss	718ceecfa2	Fix heading nav depth This fixes an issue where when a heading goes from a larger to a smaller level, it was going back too far so that subsequent headings would be at a lower level than they should have been. Fixes https://github.com/rust-lang/mdBook/issues/2944	2025-11-19 17:06:49 -08:00
Eric Huss	09616e31af	Add a test to validate the structure of the heading nav This checks the entire structure of the heading nav for this test. It currently is not handling nesting properly. Having a large inline string like this may not be the easiest to maintain or be able to see the structure. I don't see a way to format it in goml.	2025-11-19 16:50:35 -08:00
Eric Huss	7e7a3b495e	Merge pull request #2952 from ehuss/ignore-top-env-keys Ignore invalid top-level environment variable config keys	2025-11-20 00:45:41 +00:00
Eric Huss	d39deca76a	Ignore invalid top-level environment variable config keys This changes it so that top-level environment variable config keys like `MDBOOK_FOO` are ignored instead of generating an error. It's just too inconvenient since it is common for users to set environment variables like `MDBOOK_VERSION` or whatever for their own scripts.	2025-11-19 16:38:47 -08:00
Eric Huss	8385e750ec	Merge pull request #2951 from ehuss/fa-improvements Font Awesome fixes and improvements	2025-11-20 00:24:35 +00:00
Eric Huss	8571d70b52	Update the documentation for Font Awesome This updates the documentation to try to improve the Font Awesome support.	2025-11-19 16:15:53 -08:00
Eric Huss	4b5ea14ee1	Support new font-awesome class names In version 6, Font Awesome changed so that the class names look like `fa-solid fa-cat` instead of `fas fa-cat`. This updates so that it handles this new style.	2025-11-19 16:04:34 -08:00
Eric Huss	c53379e3ac	Add a test using full fontawesome type names In version 6, Font Awesome changed so that the class names look like `fa-solid fa-cat` instead of `fas fa-cat`. mdBook is not handling the new style.	2025-11-19 15:56:54 -08:00
Vitor Floriano	ef10e720a5	Change scrollbar background to transparent Closes #2930.	2025-11-12 18:16:31 -03:00