3.6.0 - July 4, 2026

• feat(word): add German and Spanish localized list-item text getters (de-DE, es-ES) (#389)
• feat(cli): add word compare command for DOCX diff (#365)
• feat(cli): add Windows ARM64 npm binary (#363)
• feat(cli): add Linux ARM64 npm binary (#360)
• perf: use FrozenSet<T> for HashSet lookups (#361)
• perf: convert Dictionary to FrozenDictionary (#362)
• perf: replace remaining List<T> with FrozenSet<T> in PtOpenXmlUtil (#371)
• fix: guard TextReplacer against IndexOutOfRangeException on empty replacement string (#381)
• fix(word): add Optional="true" support to Conditional directive in DocumentAssembler (#382)
• feat(word): add HeaderRowCount attribute to DocumentAssembler Table directive for multi-row headers (#387)
• fix: guard WmlComparer.HashBlockLevelContent against ArgumentNullException from missing pt:Unid attributes (#380)
• fix: guard WmlComparer.FindIndexOfNextParaMark against InvalidCastException from non-ComparisonUnitWord units (#385)
• fix(html): preserve w:anchor fragment on external hyperlinks — append #anchor when the URL has no existing fragment (#384)
• fix(html): correct rowspan for vertically merged cells when preceding cells use w:gridSpan (#383)
• fix(pptx): handle ExtendedPart chart workbooks in CopyChartObjects and CopyExtendedChartObjects — prevents silent data loss when a chart's external data relationship resolves to an ExtendedPart (#388)
• refactor: modernize == null/!= null to is null/is not null across 20+ files (#349, #350, #352, #353, #355, #356)
• test: add FieldRetriever.ParseField unit tests FR001–FR010 (#354)
• test: add regression tests for TextReplacer empty-string replacement TR007–TR008 (#381)
• test: add regression tests for WmlComparer defensive fixes WC380, WC385 (#380, #385)
• chore(deps): update TUnit 1.56.35 → 1.57.17 (#351, #359, #369)
• chore(ci): update actions/checkout v6 → v7 (#347)