v1.28.0

What's New

• Tab character handling — Insert tab characters (\t) as schema-based tab nodes during text insertion, preserving formatting across tab boundaries.
• Independent replacements mode — Track insertions and deletions as separate revisions (Word/ECMA-376 compliant) via modules.trackChanges.replacements: 'independent'; paired mode (Google Docs style) remains default.
• Odd/even header-footer support — Documents with w:evenAndOddHeaders now render the correct header variant per document page number.
• Column line separators — Render 1px vertical separators between columns in multi-column sections via withSeparator flag.
• Math equation converters — Implement m:box (grouping) and m:borderBox (bordered expressions) with MathML <menclose> and CSS polyfill for notation rendering.
• Tab character support in tab nodes — Enhanced text insertion to check parent content restrictions and preserve raw tab characters when tab nodes aren't allowed.

Improvements

• Tab alignment in TOC styles — Seed default 0.5" tab grid and bind trailing tab stops to right-aligned position for correct dot-leader rendering.
• Font auto-derivation in toolbar — Automatically populate props.style.fontFamily from label or key in font dropdown options.
• Math text tokenization — Split multi-character OMML runs per character (matching Word's OMML2MML.XSL) and preserve surrogate pairs via code-point iteration.
• Track changes configuration — Consolidate config under modules.trackChanges (canonical path) with backward-compatible aliases for config.trackChanges and config.layoutEngineOptions.trackedChanges.
• Footnote placement — Cap footnote layout to per-page reserved band (not max reserve) and monotonically merge reserves across passes to prevent overflow past page margins.
• Multi-column text overlap — Track deepest Y across columns and start next section below all column content when heights are unequal.
• Math function limits — Group consecutive non-digit, non-operator characters in function names and preserve nested limit/subscript/superscript styling.
• Tab stop measurement — Use actual font size for tab runs instead of hardcoded 12pt default; eliminate CSS strut misalignment in tab-segmented lines.

Fixes

• Restore published config typings in superdoc build output.
• Parse w:evenAndOddHeaders ST_OnOff values correctly in importer.
• Place cursor at clicked position inside tracked change marks.
• Allow cursor placement after inline SDT (content control) fields.
• Respect explicit column widths when drawing column separators.
• Add serif font fallback for serif-like font families.
• Fix table cell selection in collaborative editing with context menu.
• Prevent image overflow within table cells via max-width: 100%.
• Preserve italic styling on variables inside function-wrapped limits.
• Split independent replacement sidebar updates to handle unpaired revisions correctly.
• Remove toolbar window resize/keydown listeners on component unmount.
• Suppress deprecation warning re-triggers on normalized config objects.
• Validate surrogate pair boundaries in mathematical alphanumerics.

v1.28.0-next.8

1.28.0-next.8 (2026-04-22)

Bug Fixes

• paragraph: guard listRendering destructure against null (#2896) (2c38373), closes #updateListStyles #createSeparator #updateListStyles #initList #initList #initList #updateListStyles
• rebuild fragment on geometry change (#2842) (84b5fbc)

Features

• pm-adapter: synthesize internal link for PAGEREF with \h switch (#2899) (f276b34), closes #bookmark #scrollPageIntoView #visibleHost #visibleHost #bookmark

v1.28.0-next.7

1.28.0-next.7 (2026-04-22)

Bug Fixes

• prevent corrupt docx export for legacy w:pict vml rect content (#2905) (84aa0e4)

v1.28.0-next.6

1.28.0-next.6 (2026-04-22)

Bug Fixes

• applying formatting to header/footer (#2904) (75c8f51)

v1.28.0-next.5

1.28.0-next.5 (2026-04-22)

Bug Fixes

• improve toolbar responsiveness (#2761) (3a53eb3)

v1.28.0-next.4

1.28.0-next.4 (2026-04-22)

Features

• add w:pPrChange translator for paragraph property tracked changes (SD-2417) (#2705) (9adf23e)

v1.28.0-next.3

1.28.0-next.3 (2026-04-22)

Features

• executor: add tab character to tab node conversion in text insert (#2832) (bc6e5bf)

v1.28.0-next.2

1.28.0-next.2 (2026-04-22)

Bug Fixes

• place cursor at clicked pos inside tracked change (#2855) (bbb7e94)

v1.28.0-next.1

1.28.0-next.1 (2026-04-22)

Bug Fixes

• allow putting cursor after inline sdt field (#2763) (bc809f8)
• image not being contained within cell (#2775) (344be7a)
• importer: parse evenAndOddHeaders ST_OnOff values correctly (5f98b58)
• layout-bridge: keep footnote fragments within the reserved band (SD-1680) (#2881) (adf4ea6)
• layout: respect explicit column widths when drawing separators (c4c4ad1)
• math: preserve italic on variables inside function-wrapped limits (SD-2538) (#2871) (df44933)
• math: split multi-char m:r text per character to match Word (SD-2632) (#2875) (7142f4e)
• prevent text overlap when multi-column sections span pages (SD-1869) (#2676) (41722f5)
• remove toolbar window listeners on unmount (#2783) (fc840db)
• serif fallback for serif-like fonts (#2870) (781b8cd)
• table cell selection with context menu in collab (#2822) (43bb2e6)
• track-changes: split independent replacement sidebar updates (#2886) (865eaf3)

Features

• layout: enable odd/even header-footer support (w:evenAndOddHeaders) (#2804) (797b0b4), closes #2803 #resolveLayoutOptions
• math: implement m:box and m:borderBox converters (#2750) (f229576), closes #2605
• support rendering of column line separators (#2088) (68dcff2), closes #2067
• toolbar: auto-derive font-option style from label/key (SD-2611) (#2874) (ff220a9)

v1.26.0-next.38

1.26.0-next.38 (2026-04-22)

Bug Fixes

• importer: parse evenAndOddHeaders ST_OnOff values correctly (5f98b58)
• layout: respect explicit column widths when drawing separators (c4c4ad1)