Since RC.0:

• [BUGFIX] avoid possible segfault at exit. (#15724)
• [BUGFIX] OTLP receiver: Allow colons in non-standard units. #15710

Included in RC.0:

• [SECURITY] upgrade golang.org/x/crypto to address reported CVE-2024-45337. #15691
• [CHANGE] Notifier: Increment prometheus_notifications_errors_total by the number of affected alerts rather than per batch. #15428
• [CHANGE] API: list rules field "groupNextToken:omitempty" renamed to "groupNextToken". #15400
• [ENHANCEMENT] OTLP translate: keep identifying attributes in target_info. #15448
• [ENHANCEMENT] Paginate rule groups, add infinite scroll to rules within groups. #15677
• [ENHANCEMENT] TSDB: Improve calculation of space used by labels. #13880
• [ENHANCEMENT] Rules: new metric rule_group_last_rule_duration_sum_seconds. #15672
• [ENHANCEMENT] Observability: Export 'go_sync_mutex_wait_total_seconds_total' metric. #15339
• [ENHANCEMEN] Remote-Write: optionally use a DNS resolver that picks a random IP. #15329
• [PERF] Optimize l=~".+" matcher. #15474, #15684
• [PERF] TSDB: Cache all symbols for compaction . #15455
• [PERF] TSDB: MemPostings: keep a map of label values slices. #15426
• [PERF] TSDB: reduce memory allocations. #15465, #15427
• [PERF] TSDB: Optimize inverse matching. #14144
• [PERF] TSDB: When deleting from postings index, pause to unlock and let readers read. #15242
• [PERF] Scrape: optimize string manipulation for experimental native histograms with custom buckets. #15453
• [PERF] Storage: Implement limit in mergeGenericQuerier. #14489
• [PERF] Regex: use stack memory for lowercase copy of string. #15210
• [PERF] Remote-Write: Remove interning hook. #15456
• [BUGFIX] Rules: Do not run rules concurrently if uncertain about dependencies. #15560
• [BUGFIX] Scrape: fix nil panic after scrape loop reload. #15563
• [BUGFIX] Remote-write: fix panic on repeated log message. #15562
• [BUGFIX] Scrape: reload would ignore always_scrape_classic_histograms and convert_classic_histograms_to_nhcb configs. #15489
• [BUGFIX] TSDB: fix data corruption in experimental native histograms. #15482
• [BUGFIX] OTLP receiver: Convert metric metadata. #15416
• [BUGFIX] allow quoted exemplar keys in openmetrics text format. #15260
• [BUGFIX] PromQL: round() function did not remove __name__ label. #15250
• [BUGFIX] PromQL: Fix various bugs related to quoting UTF-8 characters. #15531
• [BUGFIX] PromQL: Fix resets function for histograms. #15527
• [BUGFIX] PromQL: Fix behaviour of changes() for mix of histograms and floats. #15469
• [BUGFIX] PromQL: Fix behaviour of some aggregations with histograms. #15432
• [BUGFIX] PromQL: Fix count_values for histograms. #15422
• [BUGFIX] PromQL: fix issues with comparison binary operations with bool modifier and native histograms. #15413
• [BUGFIX] PromQL: fix incorrect "native histogram ignored in aggregation" annotations. #15414
• [BUGFIX] PromQL: Corrects the behaviour of some operator and aggregators with Native Histograms. #15245
• [BUGFIX] PromQL: Clamp functions: Ignore any points with native histograms. #15169
• [BUGFIX] PromQL: Ignore histograms in all time related functions. #15479
• [BUGFIX] Promtool: analyze block shows metric name with 0 cardinality. #15438
• [BUGFIX] TSDB: fixes for rare conditions when loading write-behind-log (WBL). #15380
• [BUGFIX] TSDB: Always return unknown hint for first sample in non-gauge histogram chunk. #15343
• [BUGFIX] TSDB: Fix race on stale values in headAppender. #15322
• [BUGFIX] UI: Fix selector / series formatting for empty metric names. #15340