6000.6.0a6

Alpha · Released May 29, 2026 · Changeset 5c9528587bc8 · 20 release notes

Unity release pageRelease notes (markdown) Open in Unity Hub
43build score
Upgrade risk+20Net cleanup+6Live debt+16
cohort: alpha (33)
How this number is computed

Composite = sum of sub_score × weight across six metrics. Sub-scores are percentile-rank(log1p(min(raw, p95))) within the alpha cohort (33 releases). Sub-scores for lower-is-better metrics are flipped to 100 − percentile.

Sub-scoreFormulaRawClip%ileWeightScoreContrib
Breaking surface(breaking_change + api_change) / total_notes0.1130.1138925%112.7
Blocker rateblockers / total_notes4.3e-34.3e-33815%629.3
Mobile riskmobile_known_issues / total_notes001510%858.5
Fix densityfixes / total_notes0.6270.6271115%111.6
Net-fix delta((fixes − known_issues) − prior.(fixes − known_issues)) / total_notes0.0690.0693315%334.9
Known-issue debtknown_issues / total_notes9.7e-39.7e-32020%8016.1
Composite43

* = raw value was clipped at the cohort 95th percentile to prevent outliers from compressing everyone else's scores. Sub-scores marked "med" substitute the cohort median where the input was missing (e.g. first patch on a minor line has no prior patch for net-fix delta).

Fix error when opening Brush Pick Overlay without any Brush Picks (UUM-143242) First seen in 6000.6.0a6. Fixed in 6000.6.0a7.
2DKnown issueCautionWindowsUUM-143242
6000.3.15f1: [Windows] Package installation fails non-deterministically with Errors "EPERM: operation not permitted" when installing Packages
Known issueCautionWindowsUUM-142421
6000.6.0a6: Errors are being continuously thrown after creating Universal 3D template project
Known issueCautionUUM-143349
Editor crashes on "(Unity) WriteObjectToVector" when entering into the Play Mode
Asset ImportersKnown issueCautionUUM-112617
Fixed material selection in ObjectSelector ignoring subsequent selections after the first one. (UUM-142695) Fixed in 6000.6.0a7.
EditorKnown issueCautionUUM-142695
Reverted a change that caused a bug where the Inspector was throwing NRE errors on domain reload. (UUM-139557) Fixed in 6000.6.0a7.
EditorKnown issueCautionUUM-139557
Fixed an out-of-bounds program write in GraphicsStateCollection warmup. (UUM-141706) First seen in 6000.6.0a5. Fixed in 6000.6.0a7.
GraphicsKnown issueCautionUUM-141706
Resolved an issue where EntityIDs would be cast to int instead of ulong which resulted in an exception. (UUM-142526) Fixed in 6000.6.0a7.
GraphicsKnown issueCautionUUM-142526
Fixed a NullReferenceException that occured in ReAllocateOffscreenUIColorBufferIfNeeded after switching the build target. (UUM-143038) Fixed in 6000.6.0a7.
HDRPKnown issueCautionUUM-143038
Fixed a NullReferenceException when opening the "Active Scenario" window in the Multiplayer Center before the active scenario has finished loading (UUM-142387) First seen in 6000.6.0a5. Fixed in 6000.6.0a7.
MultiplayerKnown issueCautionUUM-142387
New Releases are shipped without the newest URP and HDRP Template Versions
Known issueCautionUUM-137426

Pick your Unity version

Unity Releases compares releases against the version your project is on. Picking it now keeps Compare versions focused on what changes between where you are and where you might be going.