v0.10.0

0.10.0 (2026-11-02)

⚠ BREAKING CHANGES

• Line iterators take a strictness level and a writing system in place
  of the CJ switch. muniSegmentIterator_EnableCjAsIdeographic(iterator, true) becomes muniSegmentIterator_SetLineBreakStrictness(iterator, muni_lineBreakLoose), which also adds loose's other breaks.
  muniSegmentIterator_IsCjAsIdeographicEnabled is removed;
  muniSegmentIterator_GetLineBreakStrictness reports the level. A new
  iterator breaks as before
  (#221).

Added

• Line iterators break at the levels of CSS's line-break property:
  strict, normal (the default), loose and anywhere, set with
  muniSegmentIterator_SetLineBreakStrictness before the first break.
  muniSegmentIterator_SetWritingSystem with
  muni_writingChineseJapanese turns on the rules CSS keeps for Chinese
  and Japanese. Loose breaks before small kana and the prolonged sound
  mark (Line_Break=CJ), before iteration marks and between characters
  such as two ellipses; anywhere breaks between any two grapheme
  clusters. Normal and strict keep CJ with what precedes it, as the CSS
  Text 3 Candidate Recommendation Draft of 14 August 2026 says; ICU4C's
  normal rules and earlier CSS drafts break before CJ in normal. The
  default level breaks as before, at nearly the same cost (0.15% more
  instructions on the bench)
  (#221).
• muniConvertCase takes two more languages. muni_caseGreek
  uppercases Greek as it is written in capitals: accents and breathings
  go, a dialytika stays and appears where a dropped accent kept two
  vowels apart ("Μάιος" to "ΜΑΪΟΣ"), the disjunctive eta "ή" keeps its
  tonos when it stands alone, and an iota subscript becomes a capital
  iota; it follows ICU's Greek rules. muni_caseArmenian uppercases
  the ligature "և" to "ԵՎ" and titlecases it to "Եվ". Lowercasing,
  titlecasing (but the ligature) and folding follow the default rules
  (#223).

Changed

• The results version is 2: calls to muniConvertCase with
  muni_caseGreek or muni_caseArmenian, which were refused, now give
  results. No result of the earlier languages changes, so stored keys
  and skeletons stay valid; a caller that stores the results version
  sees it move once
  (#223).