Read more about it here: https://nim-lang.org/blog/2025/04/22/nim-224-2016.html
As you can see, we've also released Nim 2.0.16, but at this point you should really switch to Nim 2.2, if you haven't already.
It is with great joy that I can share that Nim 2.2.4 is the first Nim version to have its Docker Hub images build and pushed automatically with CI from a repo affiliated with the official Nim GitHub account: https://github.com/nim-lang/docker-images
We also have all Nim versions rebuilt regularly in a separate repo: https://github.com/nim-lang-ci/docker-images-regular
Next step is making the image official, we're working on it.
I found a bug that is present in 2.2.2 but not in 2.2.4 for --mm:orc. See here: https://github.com/nim-lang/Nim/issues/24925
I will be upgrading to 2.2.4.
Thanks for the release.