It's safe to use the LTS, which you can track here: https://endoflife.date/nodejs

Ops type here, something important to understand is Node is language the runner client uses so in particular, this is impactful for anyone building self-hosted runners and a will be a problem for anyone still writing Node 20 applications that just use self-hosted runner Node.

Very sad they went from 20 to 24. No 22.

OTOH I've been moving from native NodeJS actions to packing them in a Docker container to separate code from compiled code.

If you wanted to use Typescript for your action you always had a 2 step process because GitHub Actions required you to pack dependencies with ncc or vite or webpack.

This packaged version was subsequently committed to the main branch.

Technically I could do a composite action where I compile the typescript on the fly, but that was fragile last time I tried it.