gohugoio/hugo v0.168.0 on GitHub

Notable new features

New imaging.firstFrameOnly option (and a matching processing flag) to only decode/encode the first frame of animated images. Hugo now also only decodes the first frame when the target format doesn't support animation, and fails early with an informative error if processing all frames would exceed the WASM memory limit.
New FrameCount method on images, e.g. to check if an image is animated.
site.Language now has Translate and Format* methods, so you can e.g. range over site.Languages and translate into each language.
New charset option for js.Build and css.Build.
Basic support for the OSC 7501 program status (working/done/idle/error) in terminals that support it, alongside the existing OSC 9;4 progress.

This release is built with Go 1.27.2, which includes 15 security fixes. The most relevant for Hugo are:

Two html/template escaping fixes, which also apply to Hugo's fork of the package: CVE-2026-94448 (context tracking not reset on consecutive expressions in JS template literals) and CVE-2026-97030 (yield not recognized as a regexp preceder keyword). Both could lead to incorrect escaping of inline JavaScript.
Several net/http fixes (HTTP/2 server crash and memory exhaustion, connection desynchronization, unbounded Range header parsing), relevant for hugo server and remote resources. The corresponding HTTP/2 fixes are also included via the upgrade of golang.org/x/net to v0.61.0.
CVE-2026-56857: os.Root.Mkdir(All) could follow junctions out of the root on Windows.

Also:

github.com/tdewolff/minify is upgraded to v2.24.19, which fixes GHSA-3ppm-p7r9-c5w3: </script> (and <!--) inside inline scripts was not properly escaped (case-insensitively) when minifying JS in HTML.
Hugo now ignores module.replacements defined in themes; only the project can define replacements.

Fix PAGE.IsNode warning in jsonify 0732ead @bep #15420
hugolib: Fix rebuild when content is also mounted as assets ac62c80 @taekop #12838
Fix deprecation issues in tests be8ffd6 @bep
circleci: Update config.yml to version 2.1 285d0ef @bep
warpc: Upgrade libavif, AOM, dav1d versions c94bdf9 @bep
warpc: Upgrade to javy 9.1.0 63fb71c @bep
warpc: Upgrade to wasi-sdk-34 2f2f33b @bep
ci: Drop extended build tag on Windows tests 53aae44 @bep
Add imaging.firstFrameOnly and some animation performance improvements 13ee7e9 @bep #15433
js, css: Add charset option to js.Build and css.Build 0688a8c @bep #15435
Add ImageResource.FrameCount c9f6e4d @bep #15430
Add Translate and Format* methods to Language df8bade @bep #7844
Add basic support for OSC 7501 program status d1024ae @bep #15425
modules: Ignore module.replacements defined in themes 6883b55 @bep
Upgrade to Go 1.27.2 f44c355 @bep #15427
ci: Add temporary workaround for staticcheck vs Go 1.27.2 46123a6 @bep
transform/metainject: Inject Hugo generator tag last in 31f5395 @toddy15
Make tests run on GOARCH 386 6b3ba3a @bep #15403
Update vulnerability reporting instructions ec69d0e @bep

build(deps): bump golang.org/x/image from 0.46.0 to 0.47.0 2bbad50 @dependabot[bot]
build(deps): bump golang.org/x/mod from 0.41.0 to 0.42.0 030619b @dependabot[bot]
build(deps): bump golang.org/x/net from 0.59.0 to 0.61.0 13ef707 @dependabot[bot]
build(deps): bump github.com/bits-and-blooms/bitset 846b1d7 @dependabot[bot]
build(deps): bump github.com/tdewolff/minify/v2 from 2.24.17 to 2.24.19 16441d2 @dependabot[bot]