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).

6000.0.61f1: Crash on tlsf_free when generating Font Atlas with SDF16 or SDF32
Known issueBlockerUUM-141061
6000.4.0a4: Freeze/Crash on core::base_hash_set when compiling shader variants during a build of a specific project
Known issueBlocker
Fixed crash on invalid state machine transitions when importing project. (UUM-141640) Fixed in 6000.6.0a6.
AnimationKnown issueBlockerUUM-141640

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