LibreOffice-from-Collabora 4.4 release is based on upstream LibreOffice 4.4 source code, thus it contains all fixes from the upstream libreoffice-4-4 branch, plus more fixes and backported stable features from higher releases.
4.4-13
Released on 2016-05-06
Most important fixes
- Upgraded 3rd party OpenSSL library to version 1.0.2h
 - Upgraded 3rd party nss library to version 3.22.2 and nspr library to version 4.12 (fixes CVE-2016-1950)
 - Upgraded 3rd party neon library to version 0.30.1
 - Upgraded 3rd party curl library curl to version 7.43.0
 - Fixes in import filter of Lotus Word Pro documents
 
4.4-11
Released on 2016-03-03
Most important fixes
- Lotus Word Pro import filter out of bounds fixes, including fixes for CVE-2016-0795 and CVE-2016-0794
 - libxslt: added patch for CVE-2015-7995
 - upgraded libpng to 1.5.24 (fixes CVE-2015-7981 and CVE-2015-8126)
 - upgraded nss to 3.19.4
 - Backported bugfixes: tdf#64432, tdf#76239, tdf#77881, tdf#79409,
tdf#80520, tdf#85232, tdf#89525, tdf#89852, tdf#93818, tdf#94871, tdf#95226, tdf#95395, tdf#95569, tdf#95670, tdf#95916. 
4.4-10
Released on 2015-10-21
Most important fixes
- Linux: removed faulty KDE3 desktop integration package
 - Linux: fixed system integration on .deb based distros
 - Linux: packages provide libreoffice-writer, libreoffice-calc etc. metapackages
 - OS X: fixed Info.plist, so LOfC will not own 3rd party file formats
 - Backported bugfixes:
tdf#61908, tdf#76197, tdf#77014, tdf#79018, tdf#83227, tdf#85979, tdf#87500, tdf#91293, tdf#91554, tdf#92454, tdf#92505, tdf#92521, tdf#92586, tdf#92995, tdf#93097, tdf#93449, tdf#93613, tdf#93895, tdf#93919, tdf#94173, tdf#94214, tdf#94249, tdf#94557, tdf#94595, tdf#94679, tdf#94804 - Code stability fixes
 
4.4-8
Released on 2015-09-07
Most important fixes
- Removed broken KDE 3 VCL backend on Linux (tdf#92412)
 - Updated ConvertTextToNumber extension to version 1.5
 - Fixed export of header background image of spreadsheet to ODF (tdf#89245)
 - Various code stability fixes
 - Improvements of file format export/import filters (DOCX, PPTX, EMF+)
Only in LibreOffice-from-Collabora: tdf#89806, tdf#93750, tdf#93830. 
4.4-2
Released on 2015-08-24
Distinctive features
(compared to upstream LibreOffice 4.4 by The Document Foundation)
- PDF time stamping
 - Support for the HKEY_CURRENT_USER Windows registry hive which enables per-user configuration policies (see also: Windows configuration management using Group Policy ADMX files)
 - Support for handling differences between OOXML written by MSO 2007 and the specification
 - Collabora branding
 - We do not bundle Liberation fonts on Windows, because the reportedly cause BSOD on Windows 7 SP1 (tdf#62764)
 - We bundle Convert Text To Number and Numbertext extensions.
 - Online update is disabled
 - Enabled creation of MSP patches on Windows
 - List of backported bugfixes: tdf#89972, tdf#90713, tdf#90925, tdf#90926, tdf#92191