The v2.6.8 fix for X11 session-restoration was incorrect. Some confusion in the test environment resulted in this being undetected.
Plasma-X11 is the only desktop that implements Qt session-restoration, Wayland-users and non-Plasma users are unaffected.
Changes:
- Fix Qt session restoration state (X11 only feature) - really fix this time.
Full Changelog: v2.6.8...v2.6.9