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Issues list

HashHelpers.FastMod could use Bmi2.X64.MultiplyNoFlags(ulong, ulong) directly area-System.Collections tenet-performance Performance related issue untriaged New issue has not been triaged by the area owner
#113352 opened Mar 11, 2025 by buybackoff
12
Apply hardware intrinsics to BitArray.*Shift area-System.Collections community-contribution Indicates that the PR has been added by a community member
#113299 opened Mar 9, 2025 by kzrnm Loading…
1
[API Proposal]: Create Generalized Pattern for Collection Builder Types api-suggestion Early API idea and discussion, it is NOT ready for implementation area-System.Collections untriaged New issue has not been triaged by the area owner
#112990 opened Feb 27, 2025 by Foxtrek64
9
[Android] System.Collections.Immutable tests timeout on android-arm and android-x86 arch-arm32 arch-x86 area-System.Collections Known Build Error Use this to report build issues in the .NET Helix tab os-android untriaged New issue has not been triaged by the area owner
#112948 opened Feb 26, 2025 by simonrozsival
2
Document important nuances about Dictionary/HashSet area-System.Collections
#112760 opened Feb 20, 2025 by kg • Draft
@kg
12
ConcurrentBag Memory Leak area-System.Collections untriaged New issue has not been triaged by the area owner
#112759 opened Feb 20, 2025 by carl-mas
8
[API Proposal]: Introduce extensions for all AlternateLookup built in collections and key String api-suggestion Early API idea and discussion, it is NOT ready for implementation area-System.Collections untriaged New issue has not been triaged by the area owner
#112571 opened Feb 14, 2025 by TrayanZapryanov
2
[API Proposal]: AlternateLookup.TryAdd overload with actualKey output + similar CollectionsMarshal overloads api-suggestion Early API idea and discussion, it is NOT ready for implementation area-System.Collections untriaged New issue has not been triaged by the area owner
#112554 opened Feb 14, 2025 by mikernet
6
BlockingCollection leaks the last seen enumerated value area-System.Collections untriaged New issue has not been triaged by the area owner
#112489 opened Feb 12, 2025 by Mad-Lynx
5
[Perf][mono] Perf_SingleCharFrozenDictionary regressions on 1/28/2025 9:07:53 AM arch-arm64 arch-x64 area-System.Collections os-linux Linux OS (any supported distro) runtime-mono specific to the Mono runtime tenet-performance Performance related issue tenet-performance-benchmarks Issue from performance benchmark
#112236 opened Feb 4, 2025 by performanceautofiler bot 10.0.0
7
[Perf] Windows/x64: 2 FrozenDictionary Regressions on 1/29/2025 3:52:02 AM +00:00 arch-x64 area-System.Collections os-windows runtime-coreclr specific to the CoreCLR runtime tenet-performance Performance related issue tenet-performance-benchmarks Issue from performance benchmark
#112159 opened Feb 4, 2025 by performanceautofiler bot 10.0.0
3
Consider supporting collection literals for IAsyncEnumerable<T> api-needs-work API needs work before it is approved, it is NOT ready for implementation area-System.Collections
#111715 opened Jan 22, 2025 by eiriktsarpalis Future
38
[API Proposal]: Add OrderedSet<T> api-suggestion Early API idea and discussion, it is NOT ready for implementation area-System.Collections
#110882 opened Dec 21, 2024 by ptasev Future
9
[API Proposal]: Add System.Collections.Concurrent.ConcurrentSet<T> api-suggestion Early API idea and discussion, it is NOT ready for implementation area-System.Collections
#110825 opened Dec 18, 2024 by MapleWheels Future
19
Consider improving FrozenSet for byte/char area-System.Collections in-pr There is an active PR which will close this issue when it is merged tenet-performance Performance related issue
#110783 opened Dec 17, 2024 by MihaZupan 10.0.0
1
@MihaZupan
2
[API Proposal]: ToOrderedDictionary api-suggestion Early API idea and discussion, it is NOT ready for implementation area-System.Collections
#110286 opened Nov 30, 2024 by rampaa Future
1
ImmutableHashSet properties allows collection initializer usage without error but initializer has no effect area-System.Collections code-analyzer Marks an issue that suggests a Roslyn analyzer
#110279 opened Nov 30, 2024 by ionite34 Future
8
[API Proposal]: ImmutableInterlocked.VolatileIsDefault api-suggestion Early API idea and discussion, it is NOT ready for implementation area-System.Collections
#109572 opened Nov 5, 2024 by 333fred Future
8
[Perf] Windows/x64: 4 Regressions on 10/27/2024 3:01:56 PM arch-x64 area-System.Collections os-windows runtime-coreclr specific to the CoreCLR runtime tenet-performance Performance related issue tenet-performance-benchmarks Issue from performance benchmark
#109347 opened Oct 29, 2024 by performanceautofiler bot 10.0.0
@AndyAyersMS
3
BlockingCollection can get back to uncompleted state even after IsCompleted was true area-System.Collections needs-further-triage Issue has been initially triaged, but needs deeper consideration or reconsideration
#109217 opened Oct 25, 2024 by Mad-Lynx Future
@krwq
6
[Perf] Windows/x64: 5 Regressions on 10/17/2024 5:07:04 PM arch-x64 area-System.Collections os-windows runtime-coreclr specific to the CoreCLR runtime tenet-performance Performance related issue tenet-performance-benchmarks Issue from performance benchmark
#109125 opened Oct 22, 2024 by performanceautofiler bot 10.0.0
@amanasifkhalid
2
[API Proposal]: Add an SortedList.TryAdd and TryGetValue overload that returns the int-based index of an entry api-suggestion Early API idea and discussion, it is NOT ready for implementation area-System.Collections
#109088 opened Oct 21, 2024 by Ilchert Future
5
Hashtable has lower hash flooding resistance than Dictionary area-System.Collections bug
#108923 opened Oct 16, 2024 by MihaZupan Future
5
Regression in .NET 9-RC2: Case-insensitive handling of JsonNode area-System.Collections breaking-change Issue or PR that represents a breaking API or functional change over a prerelease. needs-breaking-change-doc-created Breaking changes need an issue opened with https://github.com/dotnet/docs/issues/new?template=dotnet
#108790 opened Oct 11, 2024 by bart-vmware 9.0.0
6
BitArray should support Range-Indexer (RuntimeHelpers.GetSubArray<bool>) to get a range of Bits area-System.Collections
#108657 opened Oct 8, 2024 by JackDjTom Future
1
ProTip! Updated in the last three days: updated:>2025-03-15.