v0.56.0

The headline announcement: Comrak's MSRV has been bumped to 1.89. I really don't like bumping it, but not doing so limits our ongoing access to the developing Rust ecosystem. Thanks for your understanding!

There's also been quite a few pathological edge-cases solved in this release; updating is recommended.

Security:

• Fix non-functional table row counter. (by @kivikakk in #848)
• Fix pathological emphasis. (by @kivikakk in #851)
• Fix pathological relaxed autolink scan. (by @kivikakk in #852)
• Fix pathological footnote parse. (by @kivikakk in #858)
• Fix description list quadratic case. (by @kivikakk in #859)
• Remove quadratic case in Anchorizer. (by @kivikakk in #860)

Parser changes:

• We addressed a trio of autolink parser differences from cmark-gfm. (by @kivikakk in #843 and #844)

Changed APIs:

• The tagfilter extension has been removed, as I warned in the last release. It's bad. Don't use it. (by @kivikakk in #845)

Bug fixes:

• Measure fenced block offset in columns, not bytes. (by @szdytom in #836)
• Fix multiline inline source positions. (by @szdytom in #855)
• Count lone carriage returns in front matter source positions. (by @szdytom in #861)
• Fix table row source positions for differing indents. (by @szdytom in #862)
• Fix indented code block source positions after trailing blanks. (by @szdytom in #863)
• Fix paragraph source positions before tables with CRLF. (by @szdytom in #864)
• Zero-end columns adopt the widest end position in the path. (by @kivikakk in #868)

Stability:

• Update ranges for is_cjk to Unicode 18 & add fast path. (by @tats-u in #838)

Performance:

• Address Node::collect_text recursion and some wastefulness. (by @kivikakk in #847)
• Allocate one delimiter arena + byte scan table set per document. (by @kivikakk in #849)
• Autolink/sourcepos optimisations. (by @kivikakk in #850)
• Store exact-sized content in nodes during block phase. (by @kivikakk in #853)
• Special character detection in inline scanning considers context. (by @kivikakk in #856)
• Move 40 bytes of block-only data per node out of the arena. (by @kivikakk in #857)
• List sourcepos optimisations. (by @kivikakk in #866)

Dependency updates:

• Bump bon from 3.9.0 to 3.9.3. (by @dependabot[bot] in #834)
• Bump emojis from 0.8.2 to 0.9.0. (by @dependabot[bot] in #841)
• Bump smallvec from 1.15.1 to 1.15.2. (by @dependabot[bot] in #835)
• Bump phf and phf_codegen from 0.13.1 to 0.14.0. (by @kivikakk in #842)
• Bump rustc-hash from 2.1.2 to 2.1.3. (by @dependabot[bot] in #869)

Documentation:

• Clarified the LLM policy. (by @kivikakk in #865)

Build changes:

• Double test timeouts in CI. (by @kivikakk in #867)

Behind the scenes:

• Make parser::autolink::check_domain make sense. (by @kivikakk in #846)
• CodSpeed benches run against the GFM option-set too. (by @kivikakk in #854)

New Contributors

• @szdytom made their first contribution in #836

Diff: v0.55.0...v0.56.0