Require filing implementation tracking bugs after getting to stage 3?

[mathiasbynens]

Once a proposal reaches stage 3, it makes sense to file implementation tracking bugs for ChakraCore, JavaScriptCore, SpiderMonkey, and V8, and to link to them from the proposal repository’s README.

Can we make this a post-Stage-3-acceptance requirement? For many stage 3 proposals, it’s currently unclear if bugs have been filed against every major engine or not just by looking at the repository.

[michaelficarra]

Strong 👎. This is not the responsibility of the champion or of TC39 in general. Each implementation, including minor and major ones, is responsible for tracking the standard and their development process in their own way. A wise champion may want to get involved if they want to achieve stage 4 sooner, but should not be required.

[mathiasbynens]

For stage 4, implementations are required — why wouldn’t you want to track implementation progress in the repository?

[ljharb]

I think you absolutely would want to - but it's not a requirement. If the champion decides not to track, then they may find it harder to meet the stage 4 requirements, but that's not necessarily the case.