6000.3.21f1

LTS · Released Jul 29, 2026 · Changeset c02631ffc030 · 6 release notes

Unity release page Release notes (markdown) Open in Unity Hub

66build score

Upgrade risk+31Net cleanup+19Live debt+16

cohort: LTS (318)

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 LTS cohort (318 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	0	30	25%	70	17.4
Blocker rate	blockers / total_notes	0.039	0.039	50	15%	50	7.5
Mobile risk	mobile_known_issues / total_notes	0.013	0.013	41	10%	59	5.9
Fix density	fixes / total_notes	0.697	0.697	75	15%	75	11.2
Net-fix delta	((fixes − known_issues) − prior.(fixes − known_issues)) / total_notes	0.039	0.039	53	15%	53	8.0
Known-issue debt	known_issues / total_notes	0.079	0.079	20	20%	80	16.0
Composite							66

* = 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).

6000.0.67f1: [iOS] Audio is cut out when accessing iOS Control Center

Known issueCautioniOSUUM-145522

Editor crashes on "(Unity) WriteObjectToVector" when entering into the Play Mode

Asset ImportersKnown issueCautionUUM-112617

Game freezes after command buffer Timeout error

MetalKnown issueCautionUUM-125778

6000.3.21f1

Other known issues3