6000.6.0a2

Alpha · Released Apr 2, 2026 · Changeset 64de5ee36373 · 17 release notes

Unity release pageRelease notes (markdown) Open in Unity Hub
39build score
Upgrade risk+21Net cleanup+9Live debt+10
cohort: alpha (29)
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 (29 releases). Sub-scores for lower-is-better metrics are flipped to 100 − percentile.

Sub-scoreFormulaRawClip%ileWeightScoreContrib
Breaking surface(breaking_change + api_change) / total_notes0.0730.0737125%297.3
Blocker rateblockers / total_notes9.9e-39.9e-37115%294.4
Mobile riskmobile_known_issues / total_notes001210%888.8
Fix densityfixes / total_notes0.6350.635915%91.3
Net-fix delta((fixes − known_issues) − prior.(fixes − known_issues)) / total_notes——med15%507.5
Known-issue debtknown_issues / total_notes0.0210.0215020%5010.0
Composite39

* = 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).

ShaderVariantCollection.variantCount and ShaderVariantCollection.shaderCount returns 0 in Builds
6000.5.0a4,6000.0.66f1,6000.3.4f1,6000.4.0b4Known issueCautionUUM-137398
6000.5.0a5: Custom control text is not visible when adding it to the UI Document
Known IssuesKnown issueCaution
6000.5.0a5: Player Mesh Rendering is artifacting when looking around in a built HDRP Sample Scene
Known IssuesKnown issueCautionUUM-136099
6000.6.0a1: Black screen in Player when building the HDRP project with Vulkan Graphics API
Known IssuesKnown issueCautionUUM-138004
Color parameter is ignored when creating dynamic text in a UI Document with DrawText()
6000.6.0a1,6000.3.11f1Known issueCautionUUM-137907
macOS stutters in a minimal project in the Editor in Play Mode
MetalKnown issueCautionmacOSUUM-85256
Fixed a compilation when terrain module was present and SURFACE_CACHE was defined. (UUM-138486) First seen in 6000.6.0a2. Fixed in 6000.6.0a3.
SRP CoreKnown issueCautionUUM-138486
Editor memory leak in VisualElement when recompiling in a blank URP project
Known IssuesKnown issueCautionUUM-138000
New Releases are shipped without the newest URP and HDRP Template Versions
Known IssuesKnown issueCautionUUM-137426

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