Release checklist for clangd 19

[HighCommander4]

Using the Release checklist from the wiki as a template:

Once the release branch is created

• [clangd] Add clangd 19 release notes llvm/llvm-project#105975
• Document new config options added in clangd 19 (already done, the only new option is AnalyzeAngledIncludes)
  • Update clangd config file schema with new config options in clangd 19 SchemaStore/schemastore#4022
• Document any notable new features on the clangd website
  • Documented Modules support in Mention experimental modules support llvm/clangd-www#107

Once the LLVM release is out

• Prepare the clangd release on the Github releases page
• Mark the release as a stable release by unchecking the "pre-release" checkbox.
• Mark the release as "latest" after a couple weeks if there are no issues.

[nicovank]

Should TidyFastChecks.inc be updated?

[HighCommander4]

Should TidyFastChecks.inc be updated?

I will leave this to @sam-mccall / @kadircet to do at a cadence of their choosing.

[HighCommander4]

• Document any notable new features on the clangd website

The only notable new feature that comes to mind is the initial support for C++20 Modules.

@ChuanqiXu9, do you think we should add something to https://clangd.llvm.org/features about it? Or should we wait until the feature is at a more advanced stage?

[ChuanqiXu9]

• Document any notable new features on the clangd website

The only notable new feature that comes to mind is the initial support for C++20 Modules.

@ChuanqiXu9, do you think we should add something to https://clangd.llvm.org/features about it? Or should we wait until the feature is at a more advanced stage?

I think we should add it. It will pretty helpful for us to improve this by receiving more issue reports.

[HighCommander4]

The only notable new feature that comes to mind is the initial support for C++20 Modules.
@ChuanqiXu9, do you think we should add something to https://clangd.llvm.org/features about it? Or should we wait until the feature is at a more advanced stage?

I think we should add it. It will pretty helpful for us to improve this by receiving more issue reports.

Makes sense. Would you like to send a PR? The page source is at https://github.com/llvm/clangd-www/blob/main/features.md.

[ChuanqiXu9]

The only notable new feature that comes to mind is the initial support for C++20 Modules.
@ChuanqiXu9, do you think we should add something to https://clangd.llvm.org/features about it? Or should we wait until the feature is at a more advanced stage?

I think we should add it. It will pretty helpful for us to improve this by receiving more issue reports.

Makes sense. Would you like to send a PR? The page source is at https://github.com/llvm/clangd-www/blob/main/features.md.

I sent it here: llvm/clangd-www#107

[kadircet]

Should TidyFastChecks.inc be updated?

I will leave this to @sam-mccall / @kadircet to do at a cadence of their choosing.

thanks for the ping! llvm/llvm-project#106354 for analysis at 19.x, we should also get that cherry-picked to release branch

[HighCommander4]

I've prepared a 19.1.0 release at https://github.com/clangd/clangd/releases/tag/19.1.0. Marked as pre-release for now, testing is welcome.

[HighCommander4]

I've now unchecked the pre-release checkbox.

[HighCommander4]

Note that a crash regression affecting 19.1.0 has been found and fixed on trunk in llvm/llvm-project#109367. I've proposed backporting the fix to the 19.x branch in llvm/llvm-project#111317.

I would like to wait for that fix to appear in a release before marking a 19.x release as "latest".

[amitrahman1026]

Note that a crash regression affecting 19.1.0 has been found and fixed on trunk in llvm/llvm-project#109367. I've proposed backporting the fix to the 19.x branch in llvm/llvm-project#111317.

I would like to wait for that fix to appear in a release before marking a 19.x release as "latest".

I've also encountered the aforementioned bug, where I talked about it here (with backtrace logs) but on Homebrew clangd version 19.1.1. I'm a little confused about this 19.x release terminology as I'm new to looking at llvm's release structure, but does that mean I should be looking out for the next release version?

[HighCommander4]

I've also encountered the aforementioned bug, where I talked about it here (with backtrace logs) but on Homebrew clangd version 19.1.1. I'm a little confused about this 19.x release terminology as I'm new to looking at llvm's release structure, but does that mean I should be looking out for the next release version?

Yes, 19.1.1 is affected as well.

The backport of this fix to the 19.x branch was just merged within the past day (llvm/llvm-project#111318), so it will appear in the next dot release. According to this thread, that should be 19.1.2 around Oct 15.

Until then, I suggest using clangd 18. It can be obtained from https://github.com/clangd/clangd/releases/tag/18.1.3.

[HighCommander4]

A 19.1.2 release is now up at https://github.com/clangd/clangd/releases/tag/19.1.2.