Some issues I've seen (and are pretty minor) are: - Nim is case-agnostic. Tokens ignore cases and underscore so foo_bar == foobar == fooBar. I personally find

Some issues I've seen (and are pretty minor) are: - Nim is case-agnostic. Tokens ignore cases and underscore so foo_bar == foobar == fooBar. I personally find this enjoyable for my personal projects, but it remains a contentious subject. - Parallel support is pretty buggy. I've had loads of bizarre issues related to parallelism on the current version (1.6.10). However, from what I've tested in the release candidate, version 2.0.0 seems to have fixed a lot of these issues. - The official documentation is really good, but if you don't find something there, its hard to find it anywhere (details regarding its Javascript target remain pretty sparse, for example). All new languages will suffer from this though, and I don't think its severe enough to mark is as "not production ready" by itself, but it's worth noting.