I don't know where else to post this, but I installed the latest main nightly Swift Windows toolchain (October 2, 2025) and there appears to be an issue with the toolchain's command line
PS C:\Users\jenkins> swift --version
PS C:\Users\jenkins> swift build --help
PS C:\Users\jenkins> swift build --build-tests
PS C:\Users\jenkins> swift --help
PS C:\Users\jenkins>
Restarting did not fix the issue.
The toolchain is a month old. Has this been fixed/addressed? I created swiftlang/swift#85252 to track it
Yes, it seems that a new library was added and missed in the distribution. While the CI has been stable for Windows, the nightly builds have not been produced due to other issues. @mishal_shah should be able to give more details on that.
I know that I and others are also waiting on a new toolcahin snapshot. Hopefully we get one soon!
This is not the first time I encountered this symptom(swiftlang/swift#80356). What strategy is in place to ensure we don't re-introduce this behaviour when a new library will be added in the future?
Do we know what is preventing a new Windows nightly toolchain?
IMIO, in general, you should be testing your toolchain on all the platforms when you add a new library.
No, we do not know what is going on there. The nightly release process on swift.org is not public and you would need to ask @mishal_shah about the details.