6000.6.5f1

Supported · Released Oct 8, 2026 · Changeset 3ff58d469c8a · 8 release notes

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

61build score

Upgrade risk+32Net cleanup+17Live debt+12

cohort: Update/Supported (66)

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 (66 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	0.091	0.091	55	15%	45	6.7
Mobile risk	mobile_known_issues / total_notes	0	0	23	10%	77	7.7
Fix density	fixes / total_notes	0.709	0.709	73	15%	73	11.0
Net-fix delta	((fixes − known_issues) − prior.(fixes − known_issues)) / total_notes	0.018	0.018	39	15%	39	5.8
Known-issue debt	known_issues / total_notes	0.145	0.145	38	20%	62	12.4
Composite							61

* = 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).

6000.6.0a2: Crash on PrefabModificationsForSerializedObject::CachePrefabModifications when the UVC window refreshes on a modified prefab that contains nested prefab instances

Known issueBlockerUUM-155069

7000.0.0a5: Crash on mono_class_get_name when building Addressables content with a serialized type that derives from List<T>

Known issueBlockerUUM-155711

7000.0.0a5: Crash on Scripting::LogExceptionFromManaged and "BadImageFormatException: Bad IL format." fatal error when upgrading a project from Unity 6 to 7000.0.0a5 or above

Known issueBlockerUUM-156142

Crash on mono_log_write_logfile when more than one copy of bee_backend is running

Known issueBlockerUUM-142773

Crash on mono_log_write_logfile when opening specific project

Known issueBlockerUUM-150566

6000.6.5f1

Active known blockers5