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Add type downleveling (typesVersions)
A "good enough" initial solution to ensuring TS 3.9 compatibility is just banning type constructs introduced in 4.0+ (see #18440), but we may want to add actual downleveling in the future. downlevel-dts could help. A bit more discussion on #16101.
@ecraig12345 is it possible you prioritize this? We have already met this problem, for example, in #19281.
@layershifter I'm not sure if I'll have time to work on this along with other things I'm already supposed to be doing. I also wasn't aware that we had a TS minbar < 4 for converged.
It looks like downlevel-dts is still at the level of a side project at best, though it does support named tuples. A downside is that unless we switched to only shipping a single rollup file, adding a downleveled version of every .d.ts would bloat the package.
The easiest approach might be to add a basic test with TS 3.9 as described in #18440.
based on recent convo regarding BC for popover, I'll explore this during FHL
I have workable tooling that includes tests automation. Will need to polish that. After that I'll start implementing it for v9
https://github.com/Hotell/blogposts/pull/73#issuecomment-1078915393
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Because this issue has not had activity for over 180 days, we're automatically closing it for house-keeping purposes.
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Because this issue has not had activity for over 180 days, we're automatically closing it for house-keeping purposes.
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