UUM-155134

Fixed in 6000.7.0b7

Mentioned in 1 Unity 6 release note.

First fixed in 6000.7.0b7 (Oct 29, 2026).

All (5)Unity 7 (4)Unity 6 (1)
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VersionSectionRiskImpactNote
6000.7.0b7Fixes
Prefabs
FixFixed a performance regression when saving scenes that contain prefab instances with many overrides. (UUM-155134) First seen in 6000.7.0a4.

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