Michał Gołębiowski-Owczarek [:mgol] Reporter
	Description • 11 years ago

It seems a browser support matrix is nowhere to be found on both http://l20n.org and https://github.com/l20n/l20n.js/. It is very important for web developers which browsers are supported before diving into a library. This info should be made public & official and be easily accessible.

	Staś Małolepszy :stas Assignee
	Comment 1 • 9 years ago

Here's my proposal for the webcompat version:

Firefox: 32+ (September 2014; navigator.languages first appeared in 32)
Chrome: 38+ (October 2014; Map and Set et al. are introduced)
Safari: 8+ (June 2014, part of Yosemite)
IE: 11 & Edge

	Michał Gołębiowski-Owczarek [:mgol] Reporter
	Comment 2 • 9 years ago

Sounds good except I don't think it makes sense to officially support unsupported Firefox/Chrome versions; you'd have to have them in CI to be able to claim full support. Rolling-release browsers update themselves quickly so it's not worth reaching into the past. See what jQuery does in this regard:

    http://jquery.com/browser-support/

IMO it makes sense to say:
Firefox: current & previous stable, current & previous ESR
Chrome: current & previous stable
Edge: current & previous stable
Safari: 8+
IE: 11

	Zibi Braniecki [:zbraniecki][:gandalf]
	Comment 3 • 9 years ago

I like :m_gol's version better, except that I don't think it makes sense to support Safari 8 anymore. I'd set 9 as a minimum version.

	Staś Małolepszy :stas Assignee
	Comment 4 • 9 years ago

It looks like we're converging on the final set.  Good :)

Here's a new version of the proposal:

Firefox: current & previous stable, current & previous ESR
Chrome: current & previous stable
Edge: current & previous stable
Safari: 9
IE: 11

Re. "previous ESR" for Firefox:  currently that's version 31 which doesn't have navigator.languages.  However, since we need to fall back on [navigator.language] for IE11 anyways, I think that's fine.

Zibi, Michał -- thoughts?

	Michał Gołębiowski-Owczarek [:mgol] Reporter
	Comment 5 • 9 years ago

(In reply to Staś Małolepszy :stas from comment #4)
> It looks like we're converging on the final set.  Good :)
> 
> Here's a new version of the proposal:
> 
> Firefox: current & previous stable, current & previous ESR
> Chrome: current & previous stable
> Edge: current & previous stable
> Safari: 9
> IE: 11
> 
> Re. "previous ESR" for Firefox:  currently that's version 31 which doesn't
> have navigator.languages.  However, since we need to fall back on
> [navigator.language] for IE11 anyways, I think that's fine.
> 
> Zibi, Michał -- thoughts?

Sounds good (more or less) for desktop browsers, I think we should assert mobile support as well, though. iOS differs slightly from desktop Safari in a number of way, same for Chrome for Android, maybe Firefox for Android as well?

One remark - wouldn't it be better to not support last 2 Fx ESRs but only those supported by Mozilla? Sometimes it's last 2 of them but most of the time one (since there's a two-version overlap). I guess it might be harder to configure it that way and not think about it, though.

	Zibi Braniecki [:zbraniecki][:gandalf]
	Comment 6 • 8 years ago

We now have a formal list of supported environments: https://github.com/l20n/l20n.js/blob/master/docs/compat.md

Reopen if needed.