From The Document Foundation Wiki
- Added support for export to spreadsheet template file .xltx tdf#99438 (Vasily Melenchuk, CIB)
- Added support for export to text document template file .dotx commit (Vasily Melenchuk, CIB)
- Improve XLSX Pivot table interoperability tdf#123939, tdf#124651, tdf#113908, tdf#124736, tdf#124772, tdf#124810, tdf#124881, tdf#124883, (Mike Kaganski, Collabora)
- Preserve SmartArts when exporting PPTX files to allow editing in PowerPoint commit (Grzegorz Araminowicz, Collabora)
- Correctly import Text Camera Rotation with Powerpoint PPTX import tdf#126060 (Gülşah Köse, Collabora)