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IDProjectCategoryView StatusLast Update
0004039Composrcorepublic2022-10-06 00:01
ReporterChris GrahamAssigned To 
SeverityFeature-request 
Status non-assignedResolutionopen 
Product Version 
Fixed in Version 
Summary0004039: UA-client-hints specification, Sec-CH-UA (user agent string deprecation) (on hold)
DescriptionGoogle is pushing for getting rid of the old UA string, over the next few years.

https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/-2JIRNMWJ7s/yHe4tQNLCgAJ

It's not so bad for now, as they are just freezing the string, but eventually it will probably be removed entirely - in which case we need to plan for that.

At this stage it is very early, and I raised some issues with their specifications:
https://github.com/WICG/ua-client-hints/issues/14

Update tut_webapp to reference the spec.
TagsRoadmap: Over the horizon, Type: Standards compliance
Time estimation (hours)
Sponsorship open

Activities

Chris Graham

2020-10-08 18:57

administrator   ~0006748

I just checked in on this.

It looks like their progress has stalled and they've sailed way past their aggressive timeline.

Also, the major version of web browsers is apparently going to stay even when the UA header is stalled. "Note that the User-Agent significant version will continue to be updated.".

The mobile info will be included in what is frozen.

So it seems the urgency of all this is much less of an issue now.

Chris Graham

2022-10-05 23:47

administrator   ~0007540

Firefox is currently neutral on the standard, but there is some strong arguing against it: https://github.com/mozilla/standards-positions/issues/552

We are now using the standard tangentially within 0004962.

If we were to use it more, we would...
 - Make browser detection addon use it
 - Make our stats collection preferentially use it
 - Use Sec-CH-UA-Mobile being "?1" in the is_mobile function

Issue History

Date Modified Username Field Change
2020-01-14 15:59 Chris Graham New Issue
2020-01-14 16:00 Chris Graham Tag Attached: Roadmap: v12
2020-10-08 18:57 Chris Graham Note Added: 0006748
2022-10-05 23:47 Chris Graham Note Added: 0007540
2022-10-05 23:47 Chris Graham Tag Attached: Type: Standards compliance
2022-10-05 23:51 Chris Graham Summary UA-client-hints specification (user agent string deprecation) (on hold) => UA-client-hints specification, Sec-CH-UA (user agent string deprecation) (on hold)
2022-10-06 00:01 Chris Graham Description Updated View Revisions
2024-03-26 00:58 Patrick Schmalstig Tag Renamed Roadmap: v12 => Roadmap: Over the horizon