• Improved sheet view feature in Calc
• Interoperability fixes
• Markdown support in Paste Special
• Security updates of 3rd-party libraries: curl, nss, expat, libpng and freetype.

Hi everyone - we're back from our break and going back to our more-regular release schedule :)

In this version we've made some accessibility improvements - we hope the app might easier to use if you're using a screen reader now. We've also built this with fixes and features from Collabora Online 25.04.9.

New feature
    • Calc table styles provide instant formatting for data sets, offering Light, Medium, and Dark, or custom themes to improve readability. Located under the Table Design tab, these styles allow users to apply banded rows/columns, highlight headers, and add totals.
Bugfixes
    • Continued fixing of file format interoperability problems that were detected by automated test tools.

Bugfixes

Bugfixes
    • Interoperability fixes
    • All fixes from upstream LibreOffice 25.2.7

New Features
    • New spreadsheet functions (known from Excel 2024): TEXTAFTER, TEXTBEFORE, TEXTSPLIT, VSTACK, HSTACK, CHOOSECOLS, CHOOSEROWS, EXPOAND, DROP, TAKE, WRAPROWS, WRAPCOLS, TOROW, TOCOL
    • Support xl/xmlMaps.xml in XLSX files (no data loss on roundtrip)

Bugfixes
    • All fixes from upstream LibreOffice 25.2 up to Sep 30, 2025

This is a major new release, Collabora Office 25.04.4

Bugfixes
• Writer
    • FILEOPEN DOCX Numbering format corrupted by % symbols (tdf#166975)
    • FILEOPEN: Track changes are displayed in the numbering list (tdf#157596)
    • RTF import: bad image size inside shape (tdf#167044)
    • Title size wrong on DOCX fileopen (tdf#166940)
    • RTF export: lost section break after Writer section (tdf#166879)
    • Field not seen on DOCX fileopen (tdf#166205)
    • Field not seen on DOCX fileopen (tdf#166205)
    • FILESAVE DOCX Word fails to open roundtripped document (issue with non-unique ids) (tdf#166511)
    • Fixed size of text box in header (tdf#162075)
    • Do not hide the "Add To Dictionary" option in desktop product (tdf#166689)
• Calc
    • Checkbox state is not saved in xlsx (saved in ods though) (tdf#161365)
    • When you create or edit a formula, "Name box" will remain switched to "Last Used Functions list" (tdf#166674)
    • Checkbox state is not saved in xlsx (saved in ods though) (tdf#161365)
• Impress
    • FILEOPEN PPTX: image shows compressed vertically (tdf#163852)
    • FILEOPEN PPTX: Text has wrong line spacing - spills out of the table (tdf#165521)

Bugfix release with micro features

• Read-only documents
    • Disabled a few editing options that were possible to invoke with keyboard shortcuts
• Compatibility with OOXML file format
    • Thanks to the regular runs of mso-test tool, we have fixed a few problems coming out of that, for example tdf#165059, tdf#164775, tdf#165503, tdf#165655, tdf#165933, tdf#165130, tdf#165642, tdf#164201.
• Writer
    • Per-view track changes recording (see in developer's blog)
    • Support for Word's "Underline Trailing Spaces" compatibility option (tdf#164487)
    • Always export enforcement attribute of documentProtection to DOCX format (tdf#166173)
    • Fixed: overlapping tracked formatting+deletion displayed incorrectly (tdf#165322)
    • Fixed: zoom settings were not memorized beyond exiting Writer (tdf#165603)
    • Fixed: empty line always added above table in header (tdf#165117, tdf#164876)
    • Fixed misplaced images in DOCX when file contained simplePos=true (rare corner case) (tdf#166201)
• Calc
    • Accept empty second parameter of WEEKNUM spreadsheet function (tdf#165011)
    • Fixed: loss of functions in XLSX pivot table's context menu until refreshed (tdf#123225)
    • Fixed: parse various quote characters, otherwise roundtripped formulas in XLSX containing them can end up with extra parenthesis (tdf#165886)
• Impress
    • Fixed line height in table cells in imported PowerPoint documents (tdf#165521)
    • Fixed issues with master slides panel (tdf#165606, tdf#165610)
• PDF
    • Small improvements to PDF 2.0 compatibility
    • Fixed: combined "Hybrid PDF" and "Archival PDF" options generated non-conformant PDF/A files (tdf#160196)
    • Multi-page PDF imported as image (when LO_IMPORT_USE_PDFIUM environment variable is 1) can be exported properly to OpenDocument Draw (.odg) format
• Updated 3rd party libraries
    • expat 2.7.0
    • OpenSSL 3.0.16
    • Python 3.9.21
    • raptor 2.0.16

Bug Fixes
Fixed: Calc: focus breaks when switching windows
Fixed: XLS roundtripped as XLSX not opening in Excel (tdf#164141)
Fixed: FILESAVE ODT->DOC/X Template Resume moves sections-inside-column outside of the column
Fixed: Hyperlink – URL shows the last copied
Fixed: FILEOPEN DOCX: copied even/odd page style missing header properties – dynamic height (tdf#164748)
Fixed: DOCX does not have font color in MSO
Fixed: Edit comments in navigator creates new comment (tdf#164374)
Fixed: Writer: German UI: CTRL + F triggers navigation side bar instead of bottom bar
Fixed: French translation of “My AutoText”
Fixed: Collabora Office in Windows desktop icon tooltip
Fixed: LibreOffice Calc crashes when doing a lookup in a sheet with a space in its name (tdf#164130)
Fixed: convert-to exports a broken OLE in a PPTX (tdf#163064)
Fixed: Page layout reflow after pressing delete causes hang (involving tables) (tdf#162507)

• 5 months of development, 893 source code patches since last release (24.04.4)
    • all bug fixes from final TDF release of LibreOffice 24.2 and more
    • most important changes
        ◦ New “Viewer mode” where all editing functionality is disabled. With this mode Collabora Office can be used as a document viewer. Viewer mode can be configured in Expert Configuration by enabling the ViewerAppMode setting. It is also configurable through Windows Group Policy with the latest Collabora Office ADMX template.

        ◦ Fixing handling of line object transformations in the DOCX import of Writer
        ◦ Improved font fallback in the DOCX import of Writer
        ◦ Per-paragraph semi-transparent shape text in Impress
        ◦ Handling page captures for Writer TextBoxes
        ◦ Editeng RTF export: fixing a lost paragraph style

This is a bugfix and micro feature release to Collabora Office 24.04.
- New feature: Section-based continuous endnotes in Writer.
- Font bundling: re-added Source Sans Pro which was removed by upstream, and added 7 new fonts from Google's DocRepair Project.
- Backported fixes and improvements from upstream libreoffice-24-2 branch

This is a new major version based on LibreOffice 24.2.

This is a bugfix release.

• Impress: fix color of hyperlink (tdf#154248)
• Impress: fix explosion of the number of master slides when exporting to PPTX (tdf#157740)
• Impress: detect existing date/time language in slide header or footer (tdf#159927)
• Impress: fix copy of master slides' style (tdf#157742 and tdf#157783)
• Impress: export each used slide layout for a master to PPTX (tdf#159931)
• Impress: fix a regression of import of line connectors from PPTX at missing glue points (tdf#156829)
• Writer: improved import of tracked changes to content controls from DOCX format
• Writer: fixed a few problems with recently added floating table feature
• Visio import: read and use solid fill styles (tdf#77915)
• SVG export: preserve text of shapes (tdf#159704)
• SVG export: stop bullets skipping animation. Previously in SVG export of an Impress presentation if there was a bullet list animating to appear later, the bullets would appear without the text from the start.
• Various stability fixes
• Updated 3rd party libraries: curl 8.6.0, expat 2.6.2, nss 3.98, OpenSSL 3.0.13, Python 3.8.19

• All fixes from upstream LibreOffice 7.5.9
• Interoperability with MS Office
    • Improved support of floating frames in Writer: see the blog post series of Miklos Vajna.
    • Support of STYLEREF fields in Writer
    • Support of "Move" operation in Writer change tracking
    • Deleting text from other users tracked insertion does not break the original insertion into multiple operations any more
    • Fixed import of master slides (tdf#155512)
    • Conditional formatting rule priority in Calc now matches Excel
    • Improved fontwork text placement (tdf#148000)
    • Adjust OOXML import to handle first header/footer (tdf#136472)
    • Support writing SVG images into OOXML using the MS OOXML extension (tdf#126084)
• Crash fixes
• Performance fixes

• Interoperability with MS Office
  • Better support of document themes
  • Support for nested floating tables in Writer
  • Pivot tables: allow sort by selection in non-manual mode
  • Correctly import default cell background color from XLSX files
  • Fixed column with exported to XLSX
• Crash fixes
• Fixed CVE-2023-4863 - Heap-Based Buffer Overflow Vulnerability in libwebp

• Improved support of document themes
• Additional fixes to support of floating tables in text documents
• Various other bugfixes from upstream LibreOffice

• Dark Mode bug fixes, improvements and further support for switching manually
• Document themes
• Multi-page floating tables
• Compact view of Pivot Tables
• Multi-stop gradients
• Improved frame anchoring and positioning
• 64-bit zip support
• Page number wizard
• Support to open multi image TIFF files
• Categorized link targets when linking to a presentation

This is the fourth update of Collabora Office 22.05 with bugfixes.

This is the third update of Collabora Office 22.05 with bugfixes.

Interoperability fixes
Security upgrades of 3rd party libraries (curl, expat, libpng, nss, python)

This is the second update of Collabora Office 22.05 with bug fixes and new features.

Fixes and Improvements:

• Content controls in Writer
In previous release support of content controls were introduced. In this release there is a new type of content controls is supported: the combo box. Now it is also possible to export forms to PDF, and content controls will be mapped to PDF form widgets. Therefore the resulting PDF form will be fillable, too. Writer now supports titles and tags for content controls, which helps providing context for the filled in text even if the placeholder text is replaced already.

• Calc performance improvements (e.g. speed up large sheet with lots of conditions)

• PPTX interoperability improvements

• Fix SVG export of tabulators in slideshows

• Better support for importing TIFF files. The internal legacy TIFF importer was replaced to the libtiff-based importer. This feature was backported from LibreOffice 7.4

• All fixes from the latest LibreOffice 7.3.7 release

This is the first update of Collabora Office 22.05 with bugfixes and new features.

Fixes and Improvements

• Chart data table is a feature of charts, that presents in the chart area a data table with the values that are visualised by the chart. The data table is positioned automatically at the bottom of the chart, and can for certain chart types replace the X-axis labels. Read more in Tomaž Vajngerl's blog: https://tomazvajngerl.blogspot.com/2022/09/chart-data-tables.html

• In Impress, color themes are supported now for shape fill color, in addition to the previously implemented theme support of shape text color. Read more in Miklos Vajna's blog: https://vmiklos.hu/blog/sd-theme-shape-fill.html

• Writer now supports content controls: a new way to set properties on a piece of text, primarily for form filling purposes. This feature improves compatibility with the DOCX format. Plain text, rich text, checkbox, dropdown list, picture, and date picker are supported. For the interested reader more details can be found in Miklos Vajna's blog: https://vmiklos.hu/blog/sw-content-controls.html, https://vmiklos.hu/blog/sw-content-controls2.html, https://vmiklos.hu/blog/sw-content-controls3.html

• All fixes from LibreOffice 7.3.6

• Add Persian spelling dictionary

Calc in Collabora Office now supports up to 16384 columns in spreadsheets. This is a sixteenfold increase in the maximum number of columns compared to previous versions. Combined with up to one million rows per spreadsheet, Calc can now handle enormous amounts of data on the right hardware. Previous performance improvements in Calc paved the way for this feature which also increases the interoperability with Excel spreadsheets from Microsoft.

Sparklines are mini-charts found in Microsoft’s XLSX format. The support for them premieres with the release of Collabora Office 22.05.

We have been looking at Writer and how it can better render Word-style borders around pages, tables and paragraphs. Word users expect to be able to import their documents to Writer and have a rendering that is true to the original. A series of fixes to the way page, table, and paragraph borders of OOXML documents are imported into and painted in Writer meets this desire. This is done conditionally, so existing ODF documents are left unchanged. As a result of this work, Writer now has a set of improvements to better render Word-style borders around pages, tables and paragraphs.

This version introduces the ability to add hyperlinks to shapes in Writer. This option was previously only available in spreadsheets and presentations, but not in text documents. At the same time, links in shapes were previously also lost when importing Word documents, so this feature also improves interoperability

Writer has now the ability to handle linked character styles and paragraph styles from Word documents. This improves interoperability and may improve the style previews and the UI of future releases. Earlier, links were lost on round-trips between Writer and Word which led to unwanted displays inside the style pickers.

Impress now correctly renders shadows for table shapes, even if the shadow itself or the fill of the table cells have transparency. This is another enhancement of the compatibility with Microsoft’s PowerPoint with regard to the support of transparency in table cell fills and table shadows.

A few new PowerPoint-compatible screen sizes have been added to the Paper Format options inside the Slide Properties. The “Widescreen” option is currently used in PowerPoint, while the different “On-screen Show” options are used in previous versions of PowerPoint and Google Slides. Any exported file created with these sizes will be treated as a preset size (as opposed to a user size). The same applies on import.

In addition to improving interoperability, one of the main areas of activity for Collabora engineers is the continued improvement of performance. In the new main version of Collabora Office, significant performance improvements can be found in all modules, which were achieved by streamlining the code.

For more details, see https://www.collaboraoffice.com/press-releases/collabora-office-22-05-introduces-new-features-and-performance-enhancements-combined-with-excellent-interoperability/

Bug fixes and functionality improvements.

Bug fixes and functionality improvements.

Add image preferred DPI document setting
Make icon size of conditional formatting in spreadsheets same as font size
Fix unexpected paragraph border inside Writer table cell
Print preview: use new paper size after switching page TDF#129638
Interoperability fixes:
Support for the WebP image format TDF#114532
DOCX: fix tables in footnotes TDF#95806 TDF#125877 TDF#141172
DOCX import: fix negative page margins TDF#119952
DOCX import: handle a subset of <w:ptab w:alignment="left">
DOCX import: floating table with negative top margin has to be a fly frame
DOCX import: handle anchored objects as at-char TDF#143591
PDF export: allow setting filter data keys from the cmdline
PDF export of PDF images: preserve hyperlinks
PPTX import: make Z rotation work with rotation transform TDF#146534
PPTX export: fix endParaRPr size value for empty paragraphs TDF#146690
SVG export: fix missing custom bullets
VBA: add support for Application.WindowState
VBA: add support for Application.GetOpenFilename TDF#118246
VBA: fix copy-paste using same and separate document in Calc
VBA: fix registering shortcuts keys defined by the VBA macros
VSDX import: show bitmaps in Visio files TDF#73523
Backported various code stability fixes
Security fixes to 3rd party libraries
libjpeg-turbo: add patch for CVE-2020-17541
expat: upgrade to 2.4.4, CVE-2022-23852 and CVE-2022-23990
openldap: upgrade to 2.4.59, CVE-2020-36230 and CVE-2020-36229
postgresql: upgrade to 13.5, CVE-2021-23222