v18.0.7

18.0.7 (2026-07-21)

Bug Fixes

• Avoid O(n^2) backtracking in HTML block close and tilde interrupt regexes (#4014) (f945fc5), closes #3991
• Avoid O(n^2) masked source rebuild in inline tokenizer (#4017) (9154f8f)
• keep empty list after blockquote as a sibling block (#4004) (3f144a0)
• preserve code spans adjacent to tildes (#4012) (0de7188)
• Recognize setext headings whose first line starts with # (#4015) (f056437), closes #1
• treat a line of only tabs as a blank line between paragraphs (#4007) (bc2f121)

v18.0.6

18.0.6 (2026-07-09)

Bug Fixes

• Avoid O(n^2) backtracking in inline link href regex (#4013) (a009808)
• Fix ordered lists after blockquotes (#4003) (33928d0)
• keep trailing text on HTML block close line for PI, declarations, and CDATA (#3991) (bbb84c8)

v18.0.5

18.0.5 (2026-06-04)

Bug Fixes

• parse empty list item with trailing space (#3984) (b55410f)

v18.0.4

18.0.4 (2026-05-19)

Bug Fixes

• cache list indentation regexes (#3969) (a37983f)
• fix cli not reading stdin (#3967) (11adb69)

v18.0.3

18.0.3 (2026-05-01)

Bug Fixes

• avoid task checkbox for setext heading text (#3960) (2608e81)

v18.0.2

18.0.2 (2026-04-18)

Bug Fixes

• fix infinite loop for indented code blank line (#3947) (58a52e8)

v18.0.1

18.0.1 (2026-04-17)

Bug Fixes

• rules: ensure lookbehind regex is evaluated correctly by minifiers (#3945) (abd907a)

v18.0.0

18.0.0 (2026-04-07)

Bug Fixes

• Bump typescript from 5.9.3 to 6.0.2 (#3934) (e8efc51)
• prevent GFM table tokens from greedily capturing trailing newlines (#3926) (40f2665)
• prevent heading and def tokens from greedily capturing multiple newlines (#3925) (b379e3e)
• trim blank lines from block tokens (#3939) (b70895f)

BREAKING CHANGES

• trim trailing blank lines from block tokens
• update Typescript to v6

v17.0.6

17.0.6 (2026-04-05)

Bug Fixes

• avoid race condition in async parallel parse/parseInline with hooks (#3924) (6e96fa7)
• cli: honor positional input file (#3922) (a1c2617)
• cli: use file URL for config import (#3923) (73e1f3f)

v17.0.5

17.0.5 (2026-03-20)

Bug Fixes

• Fix catastrophic backtracking (ReDoS) in link/reflink label regex (#3918) (4625980)
• prevent quadratic complexity in emStrongLDelim regex (#3906) (c732dd2)
• prevent single-tilde strikethrough false positives (#3910) (5e03369)
• re-assign tokenizer.lexer and renderer.parser at start of each parse call (#3907) (f3a3ec0)
• trim trailing whitespace from lheading text (#3920) (3ea7e88)