This post contains the detailed changelog entries of Sailfish OS update 4.4.0.58 compared to 4.3.0.15 and 4.4.0.64 compared to 4.4.0.58.
Changelog_from_4.3.0.15_to_4.4.0.58.md (192.3 KB)
Changelog_from_4.4.0.58_to_4.4.0.64.md (12.6 KB)
The release notes of Vanha Rauma.
See also blog post regarding release of Sailfish OS for the Xperia 10 III