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* [release-notes] .NET Libraries in .NET 11 Preview 4 (initial)
* [release-notes] Author libraries.md content
* Remove S.S.Crypto.Xml and LDAP change entries
* Fix verified API errors in 11.0 Preview 4 libraries release notes
Verified each API claim against Microsoft.NETCore.App.Ref 11.0.0-preview.4
from the dotnet11 feed and against the locally installed runtime. Fixes
six issues (five compile-time, one runtime):
- Process snippet: ProcessResult does not exist (it is ProcessTextOutput),
result.ExitCode does not exist (it is result.ExitStatus.ExitCode), and
the ProcessStartInfo overload of RunAndCaptureTextAsync throws at
runtime unless RedirectStandardOutput/Error are set. Switched to the
cleaner (string fileName, IList<string> arguments) overload.
- ZLib snippet: ZLibEncoder.Compress is an instance method, and the 5th
parameter is bool isFinalBlock (not CompressionLevel). Switched to
instantiating the encoder and calling Compress with isFinalBlock: true.
- Floating-point hex snippet: double.Parse requires NumberStyles.HexFloat
to parse the hex form; without it, the snippet throws FormatException
at runtime. Also corrected the example output casing to match what
ToString("X") actually emits (uppercase 0X and P).
- F# discriminated unions: System.Text.Json's PR 125610 ships an
adjacently-tagged shape with $type discriminator and named fields,
not the {Case, Fields} envelope shown in the snippet.
- LINQ tuple-overload section: removed entirely. PR 126624 reverted all
four tuple overloads (Join/LeftJoin/RightJoin/GroupJoin), and the
reinstatement (PR 126649) merged to main only and was not back-ported
to release/11.0-preview4. Updated the filtered-features comment to
reflect this.
Removed the four resolved TODO markers. Three TODO markers remain
(ConfigurationIgnoreAttribute namespace verified separately, MemoryCache
OTel instrument names, and the C# DU language proposal link).
Co-authored-by: Copilot <[email protected]>
* Resolve remaining TODOs in 11.0 Preview 4 libraries notes
- ConfigurationIgnore: drop verification marker (already in
Microsoft.Extensions.Configuration namespace, confirmed via
dotnet-inspect against PR 126396).
- MemoryCache OTel: name the four observable instruments emitted by
the new Microsoft.Extensions.Caching.Memory.MemoryCache meter
(dotnet.cache.requests with dotnet.cache.request.type=hit|miss,
dotnet.cache.evictions, dotnet.cache.entries,
dotnet.cache.estimated_size); document the
MemoryCacheOptions.TrackStatistics opt-in and the IMeterFactory
parameter on the new constructor. Confirmed at runtime against
Microsoft.Extensions.Caching.Memory 11.0.0-preview.4.26224.122
using a MeterListener probe.
- Discriminated unions: link to the C# unions language proposal
(dotnet/csharplang/blob/main/proposals/unions.md) and champion
issue dotnet/csharplang#9662.
Co-authored-by: Copilot <[email protected]>
---------
Co-authored-by: danroth27 <[email protected]>
Co-authored-by: Jeff Handley <[email protected]>
Co-authored-by: Copilot <[email protected]>
* [release-notes] Containers in .NET 11 Preview 4 (initial) * Add .NET containers preview 4 release notes --------- Co-authored-by: danroth27 <[email protected]> Co-authored-by: Logan Bussell <[email protected]>
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Release notes for .NET 11 Preview 4.
This is the base PR for the milestone — it carries the shared metadata
(
README.md,changes.json,build-metadata.json,features.json). Eachcomponent file ships in its own PR targeting this branch so component teams
review their own file in isolation. See
release-notesskill /pr-layout.md.The component PRs will be linked back here as they open.
Generated end-to-end by the
release-notesskill (dry-run promoted to realPRs after local validation). AI-authored content; component teams should vet
for accuracy and resolve any inline
<!-- TODO -->placeholders beforemarking their PR ready for review.