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Official patches, updates and announcements from the developer.
Last updated Oct 1, 2026
Stellaris Dev Diary #434 - 4.5.2 'Cygnus' Tentative Patch Notes
Hey folks, unfortunately Eladrin's been off ill this week, so we don’t have a full Dev Diary for this week. However I do have tentative patch notes for the 4.5.2 patch to share.
Stellaris Dev Diary #433 - 4.5 'Cygnus' Preliminary Release Notes
4.5.0 ‘Cygnus’ has the most bugfix entries of any Stellaris patch, with more bugfixes than our two previous record holders. Here are the complete preliminary release notes.
Stellaris 4.5 'Cygnus' Open Beta Update 5 (bc43)
Hello everyone! We've updated the 4.5 Open Beta branch with some improvements.