6000.5.9f1

Supported · Released Aug 19, 2026 · Changeset b57deb96f08d · 6 release notes

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60build score

Upgrade risk+23Net cleanup+21Live debt+15

cohort: Update/Supported (58)

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 Update/Supported cohort (58 releases). Sub-scores for lower-is-better metrics are flipped to 100 − percentile.

Sub-score	Formula	Raw	Clip	%ile	Weight	Score	Contrib
Breaking surface	(breaking_change + api_change) / total_notes	0.020	0.020	73	25%	27	6.7
Blocker rate	blockers / total_notes	0.080	0.080	42	15%	58	8.7
Mobile risk	mobile_known_issues / total_notes	0	0	20	10%	80	8.0
Fix density	fixes / total_notes	0.740	0.740	84	15%	84	12.5
Net-fix delta	((fixes − known_issues) − prior.(fixes − known_issues)) / total_notes	0.160	0.160	58	15%	58	8.7
Known-issue debt	known_issues / total_notes	0.120	0.120	23	20%	77	15.3
Composite							60

* = 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).

Player crashes with use-after-free when a Shader is unloaded immediately after ShaderWarmup.WarmupShaderFromCollection() on D3D12

6000.6.0a3 6000.5.0b8 6000.3.16f1Known issueCautionUUM-149781

6000.6.0a7: [Universal 3D Sample] NullReferenceException is thrown when opening GardenScene in URP 17.3.0 sample

Known issueCautionUUM-145743

6000.5.9f1

Other known issues2