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"union" keyword is missing

Open Beginner friendly
#56,356 0 comments 1 reaction 2 assignees View on GitHub

Maintainers usually reply within 1 day

@BillWagner is already working on this.

Since Oct 13, 2026.

  • #56385 by @copilot-swe-agent — open

Assessment

Difficulty
1/5
Estimated time
Under an hour
Newbie friendliness
84/100
Issue type
Documentation
Clarity
Clearly specified
Activity status
Active
Tech stack
csharp
Domain
documentation

Research direction

Start with docs/csharp/language-reference/keywords/index.md, linked in the issue, and check how the existing closed keyword is listed. Add the missing union entry to the keyword list, then verify it appears on the C# keywords page.

Written by the indexing model from the issue text.

Description

:world_map: reQUEST dotnet-csharp/svc lang-reference/subsvc
Type of issue

Missing information

Description

C# 15's new closed contextual keyword is listed, but union is missing.

Page URL

https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/

Content source URL

https://github.com/dotnet/docs/blob/main/docs/csharp/language-reference/keywords/index.md

Document Version Independent Id

4b943400-309d-0437-5513-0533456297f0

Platform Id

fa5c6c0f-2fb7-3e47-1d98-e371c5354c0a

Article author

@BillWagner

Metadata
  • ID: fa5712fd-a965-e2a9-5b1c-0b295d5e8ccd
  • PlatformId: fa5c6c0f-2fb7-3e47-1d98-e371c5354c0a
  • Service: dotnet-csharp
  • Sub-service: lang-reference

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