6000.6.0a5

Alpha · Released May 13, 2026 · Changeset e220e6931c38 · 16 release notes

Unity release pageRelease notes (markdown) Open in Unity Hub
60build score
Upgrade risk+28Net cleanup+15Live debt+18
cohort: alpha (30)
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 (30 releases). Sub-scores for lower-is-better metrics are flipped to 100 − percentile.

Sub-scoreFormulaRawClip%ileWeightScoreContrib
Breaking surface(breaking_change + api_change) / total_notes0.0660.0666525%358.8
Blocker rateblockers / total_notes1.7e-31.7e-31815%8212.3
Mobile riskmobile_known_issues / total_notes5.8e-45.8e-42810%727.2
Fix densityfixes / total_notes0.6700.6702815%284.3
Net-fix delta((fixes − known_issues) − prior.(fixes − known_issues)) / total_notes0.2010.2016915%6910.3
Known-issue debtknown_issues / total_notes9.3e-39.3e-31220%8817.7
Composite60

* = 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).

Fixed UnitySendMessage calls being dropped on Android when sent during Application.Unload or Reload in Unity as a Library (UAAL) scenarios. (UUM-141440) Fixed in 6000.6.0a6.
AndroidKnown issueCautionUUM-141440
Fixed an issue where .generated.globalconfig file leaked into the Player builds. (UUM-141488) First seen in 6000.6.0a5. Fixed in 6000.6.0a6.*
Build SystemKnown issueCautionUUM-141488
Added an option called enableHeightmapLODFrustumCulling, which is available in the Terrain Inspector settings in debug mode, to opt out of terrain frustrum based LOD culling. (UUM-141589) Fixed in 6000.6.0a6.
EditorKnown issueCautionUUM-141589
Fixed an issue with importing samples with dependencies from the all samples tab in Package Manager. (UUM-137883) Fixed in 6000.6.0a6.
EditorKnown issueCautionUUM-137883
Resolved a null exception thrown during creation of an Untyped constant node. (UUM-141306) First seen in 6000.6.0a5. Fixed in 6000.6.0a6.
Graph ToolkitKnown issueCautionUUM-141306
Apply GPU skinning to meshes that only have blend shapes when available (UUM-137953) Fixed in 6000.6.0a6.
GraphicsKnown issueCautionUUM-137953
macOS stutters in a minimal project in the Editor in Play Mode
MetalKnown issueCautionmacOSUUM-85256
Re-eanble USE_LEGACY_LIGHTMAPS for all shaders when enabling GRD. (UUM-136099) Fixed in 6000.6.0a6.
PlayerKnown issueCautionUUM-136099
Fixed a long delay before templates appeared in the window while indexing was in progress. (UUM-141168) First seen in 6000.6.0a4. Fixed in 6000.6.0a6.
VFX GraphKnown issueCautionUUM-141168
Fixes broken UI shaders displaying as pink in players after switching to a new Meta Quest build profile due to certain default UI shaders being missing from the Always Included Shaders list. (UUM-139883) Fixed in 6000.6.0a6.
XRKnown issueCautionUUM-139883
Editor crashes when generating 3D meshes with Rodin Hyper 3D AI model in HDRP project
Known issueCautionUUM-135674
New Releases are shipped without the newest URP and HDRP Template Versions
Known issueCautionUUM-137426

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