Shane F. Carr

Putting in the 2.0 milestone in case we want to consider doing a comprehensive treatment of all ICU4X types that _could_ have fully borrowed constructors. @robertbastian @Manishearth

Yes, "has singleton data marker" is more precise than "not locale sensitive".

I'd like to discuss if we want this to block 2.0 or not. I think it can be safely done after 2.0 but might require deprecating functions.

If we give non-singleton baked data a way to return `&'static` things, it would prevent us from doing #5230 in a non-breaking way. So I think we should decide on...

- @hsivonen - Manish said that DataPayload requires some design stuff. We could make `Char16Trie` support `ZeroFrom` to avoid tweaking architecture. - @Manishearth - If we can find a surgical...

@hsivonen Is this done?

Related: https://github.com/unicode-org/icu4x/issues/3821

I'm waiting on https://github.com/tc39/proposal-intl-era-monthcode/pull/37 to land. If it does, I believe that ICU4X already exposes all of the information required for implementing Temporal.

Sorry, I'm a little confused. What is your proposed change? I'm not aware of anything on the ICU4X main branch relating to calendars and YearInfo that isn't already on crates.io....

> [0753b06](https://github.com/unicode-org/icu4x/commit/0753b061cfc83ebe5454a9c0c457fd9dea895f47) > > [@sffc](https://github.com/sffc) what do you think of releasing icu_calendar 2.0.3 with that patch and then declaring this issue fixed? This PR doesn't impact Temporal Year. It impacts...