Hi blink-dev, UA Reduction Phase 5 is currently ramping up to 10% of the stable release population. We will monitor the change has any impacts.
Thanks. Victor On Wednesday, December 7, 2022 at 4:56:18 PM UTC-5 Victor Tan wrote: > Hi blink-dev, > UA Reduction Phase 5 is currently ramping up to 5% of the stable release > population. We will monitor the change has any impacts. > > Thanks. > Victor > > On Thursday, December 1, 2022 at 3:55:50 PM UTC-5 Mike Taylor wrote: > >> Thanks Ziling. We're unlikely to make the change just ahead of the >> weekend, but will ping this thread early next week once the move to 5% is >> submitted. >> >> On 12/1/22 1:36 PM, Ziling Zhao wrote: >> >> Hey Mike, >> >> I think moving to 5% early sounds good for YouTube. The 1% doesn't seem >> to be giving us consistent data and we would want to get more traffic as >> soon as possible. If we were to move forward, would this re-roll the >> experiment or just expand? How soon would we be able to roll this out? >> >> Thanks! >> >> On Mon, Nov 28, 2022 at 3:33 PM Mike Taylor <miketa...@chromium.org> >> wrote: >> >>> Hi Ziling, >>> >>> (forgive the delay in replying, I took some time off and managed to not >>> check my email) >>> >>> Based on the other feedback we've received both internally and >>> externally (and the lack of any negative impact thus far), I don't think we >>> want to add an additional month to our rollout schedule before hitting >>> 100%. Another possible option would be to move to 5% sooner, at least 1 >>> month ahead of Jan 9th, ideally with enough time to observe metrics ahead >>> of the Finch freeze on Dec 16th, in case something scary happens that would >>> warrant a rollback. >>> >>> Would that work for YouTube? >>> >>> thanks, >>> Mike >>> >>> On 11/17/22 7:12 PM, Ziling Zhao wrote: >>> >>> Hello, >>> >>> YouTube -- and various other Google properties -- have been analyzing >>> the results of this 1% experiment. We're concerned that the 1% may not >>> provide enough data especially due to the amount of slicing (modern chrome, >>> non windows vs. legacy windows, etc.). On YT, we are seeing significant >>> metrics impact on, and given the holidays, there's a short amount of time >>> available for us to iterate and debug issues before we rollout to 10%. >>> >>> We'd like to propose: >>> >>> - An intermediate state of 5% on January 9th rather than jumping >>> directly to 10%. >>> - The 5% should hold for at least a month, enough for us to do a few >>> rounds of experimental analysis and debugging. >>> >>> >>> Thanks. >>> >>> On Wednesday, November 2, 2022 at 4:32:02 PM UTC-7 mike...@chromium.org >>> wrote: >>> >>>> Howdy blink-dev, >>>> >>>> Phase 5 of UA Reduction is currently ramping up to 1% of the stable >>>> release population. No changes will occur between now and January 9th, >>>> pending site compatibility feedback. >>>> >>>> thanks, >>>> Mike >>>> >>>> On 9/7/22 12:16 PM, Victor Tan wrote: >>>> >>>> Thanks all. I just realized there are some date typos for the roll out >>>> plan. Update as follows: >>>> >>>> Stage >>>> >>>> Time >>>> >>>> Date >>>> >>>> Stable 1% (M107+) >>>> >>>> Canary/Dev/Beta 100% >>>> >>>> M107 stable release is shipping to 100% (a best guess) >>>> >>>> Nov 1, 2022 >>>> >>>> Stable 10% (M107/M108/M109) >>>> >>>> ~10 weeks after previous stage >>>> >>>> Jan 9, *2023* >>>> >>>> Stable 50% >>>> >>>> (M107/M108/M109) >>>> >>>> ~2 weeks >>>> >>>> Jan 23, *2023* >>>> >>>> TOT Default (M111) >>>> >>>> ~2 weeks after previous stage >>>> >>>> Feb 7, *2023* >>>> >>>> Stable 100% (M107=>M111) >>>> >>>> ~ Same business day as previous stage >>>> >>>> Feb 7, *2023* >>>> >>>> Bests, >>>> Victor >>>> >>>> On Wed, Sep 7, 2022 at 11:59 AM Yoav Weiss <yoav...@chromium.org> >>>> wrote: >>>> >>>>> LGTM3 >>>>> >>>>> On Wed, Sep 7, 2022 at 5:51 PM Daniel Bratell <brat...@gmail.com> >>>>> wrote: >>>>> >>>>>> LGTM2 >>>>>> >>>>>> /Daniel >>>>>> On 2022-09-07 17:50, Chris Harrelson wrote: >>>>>> >>>>>> LGTM1. If any issues come up during this rollout that affect the >>>>>> plan, please bring them back to this thread for our consideration. >>>>>> >>>>>> On Thu, Sep 1, 2022 at 11:29 AM Victor Tan <vict...@chromium.org> >>>>>> wrote: >>>>>> >>>>>>> Contact emails >>>>>>> >>>>>>> mike...@chromium.org, vict...@chromium.org >>>>>>> >>>>>>> Explainer >>>>>>> >>>>>>> >>>>>>> https://github.com/WICG/ua-client-hints#explainer-reducing-user-agent-granularity >>>>>>> >>>>>>> Specification >>>>>>> >>>>>>> https://www.chromium.org/updates/ua-reduction is the closest thing >>>>>>> that specifies Chrome’s UA Reduction plans today. As these changes land >>>>>>> in >>>>>>> Chromium and ship to 100% of stable, the Compat Standard >>>>>>> <https://compat.spec.whatwg.org/> will be updated in the UA String >>>>>>> section <https://compat.spec.whatwg.org/#ua-string-pattern-chrome>, >>>>>>> like we did for the Phase 4 changes. >>>>>>> >>>>>>> Summary >>>>>>> >>>>>>> As previously detailed on the Chromium Blog >>>>>>> <https://blog.chromium.org/2021/09/user-agent-reduction-origin-trial-and-dates.html>, >>>>>>> >>>>>>> we intend to proceed with Phase 5 of the User-Agent Reduction plan >>>>>>> <https://www.chromium.org/updates/ua-reduction/#sample-ua-strings-phase-5>. >>>>>>> >>>>>>> In Phase 5, the User-Agent string changes the platform and oscpu tokens >>>>>>> from their platform-defined values to the relevant unifiedPlatform >>>>>>> <https://www.chromium.org/updates/ua-reduction/#token-reference> >>>>>>> token value. The `navigator.platform`, `navigator.platform`, and >>>>>>> `navigator.appVersion` JS APIs will be similarly reduced. >>>>>>> >>>>>>> Blink component >>>>>>> >>>>>>> Blink>Network>ClientHints >>>>>>> >>>>>>> TAG review >>>>>>> >>>>>>> https://github.com/w3ctag/design-reviews/issues/640 >>>>>>> >>>>>>> TAG review status >>>>>>> >>>>>>> Closed with concerns. >>>>>>> >>>>>>> Risks >>>>>>> Interoperability and Compatibility >>>>>>> >>>>>>> Any time you modify the User-Agent string there is a risk of some >>>>>>> content somewhere depending on the previous format. >>>>>>> >>>>>>> We do not expect interop risks, as each browser sends its own >>>>>>> User-Agent string format. But there is a risk, especially on legacy >>>>>>> Windows >>>>>>> platforms, that content somewhere is relying on User-Agents to parse >>>>>>> platform and oscpu information. We believe the risk is somewhat low. >>>>>>> But in >>>>>>> order to mitigate the risk of this change, we intend to slowly roll it >>>>>>> out >>>>>>> via Finch creating two sub groups: one group enabling the feature for >>>>>>> all >>>>>>> platforms except legacy Windows platforms, another group enabling the >>>>>>> feature on legacy Windows platforms and observing health metrics and >>>>>>> bug >>>>>>> reports. This gives us the option to roll this back specifically for >>>>>>> legacy >>>>>>> Windows clients if needed, but proceed for other platforms. >>>>>>> >>>>>>> Displaying a modern OS version for legacy clients will not create a >>>>>>> problem syntactically on legacy Windows platforms. But the web can get >>>>>>> pretty weird in ways we don't anticipate, hence the slow roll-out and >>>>>>> incremental path towards User-Agent Reduction. >>>>>>> >>>>>>> Here is our proposed rollout plan, with the understanding that if we >>>>>>> discover concerning breakage or regressions via health metrics or bug >>>>>>> reports we will pause the rollout or roll back the feature entirely >>>>>>> (and >>>>>>> update this thread if so): >>>>>>> >>>>>>> Stage >>>>>>> >>>>>>> Time >>>>>>> >>>>>>> Date >>>>>>> >>>>>>> Stable 1% (M107+) >>>>>>> >>>>>>> Canary/Dev/Beta 100% >>>>>>> >>>>>>> M107 stable release is shipping to 100% (a best guess) >>>>>>> >>>>>>> Nov 1, 2022 >>>>>>> >>>>>>> Stable 10% (M107/M108/M109) >>>>>>> >>>>>>> ~10 weeks after previous stage >>>>>>> >>>>>>> Jan 9, 2022 >>>>>>> >>>>>>> Stable 50% >>>>>>> >>>>>>> (M107/M108/M109) >>>>>>> >>>>>>> ~2 weeks >>>>>>> >>>>>>> Jan 23, 2022 >>>>>>> >>>>>>> TOT Default (M111) >>>>>>> >>>>>>> ~2 weeks after previous stage >>>>>>> >>>>>>> Feb 7, 2022 >>>>>>> >>>>>>> Stable 100% (M107=>M111) >>>>>>> >>>>>>> ~ Same business day as previous stage >>>>>>> >>>>>>> Feb 7, 2022 >>>>>>> >>>>>>> >>>>>>> Gecko: Shipped/Shipping. Firefox has frozen (or capped) much of >>>>>>> their UA string already. >>>>>>> >>>>>>> WebKit: Shipped/Shipping. Safari has already frozen everything in >>>>>>> their desktop UA string except for Safari and WebKit versions. >>>>>>> >>>>>>> Web developers: Mixed signals. Reactions have ranged from positive >>>>>>> to indifferent to negative, from various channels. >>>>>>> >>>>>>> Debuggability >>>>>>> >>>>>>> No special DevTools support needed. >>>>>>> >>>>>>> Will this feature be supported on all six Blink platforms (Windows, >>>>>>> Mac, Linux, Chrome OS, Android, and Android WebView)? >>>>>>> >>>>>>> No (Only for desktop platforms: Windows, Mac, Linux, Chrome OS) >>>>>>> >>>>>>> Is this feature fully tested by web-platform-tests >>>>>>> <https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md> >>>>>>> ? >>>>>>> >>>>>>> No >>>>>>> >>>>>>> Flag name >>>>>>> >>>>>>> #reduce-user-agent-platform-oscpu >>>>>>> >>>>>>> Tracking bug >>>>>>> >>>>>>> https://bugs.chromium.org/p/chromium/issues/detail?id=1339834 >>>>>>> >>>>>>> Launch bug >>>>>>> >>>>>>> https://bugs.chromium.org/p/chromium/issues/detail?id=1346071 >>>>>>> >>>>>>> Link to entry on the Chrome Platform Status >>>>>>> https://chromestatus.com/feature/5098783126323200 >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "blink-dev" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to blink-dev+...@chromium.org. >>>>>>> To view this discussion on the web visit >>>>>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAJh4P7FysJS2D2i4G3YNkf6X8N4_eyUcP%2BpoFrUB_ikdiATwuA%40mail.gmail.com >>>>>>> >>>>>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAJh4P7FysJS2D2i4G3YNkf6X8N4_eyUcP%2BpoFrUB_ikdiATwuA%40mail.gmail.com?utm_medium=email&utm_source=footer> >>>>>>> . >>>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "blink-dev" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>> send an email to blink-dev+...@chromium.org. >>>>>> To view this discussion on the web visit >>>>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOMQ%2Bw9fGf_85Y4oFArSbBHmFYFEnZ%2BozUaRUvJqFJork%2BadcQ%40mail.gmail.com >>>>>> >>>>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOMQ%2Bw9fGf_85Y4oFArSbBHmFYFEnZ%2BozUaRUvJqFJork%2BadcQ%40mail.gmail.com?utm_medium=email&utm_source=footer> >>>>>> . >>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "blink-dev" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>> send an email to blink-dev+...@chromium.org. >>>>>> To view this discussion on the web visit >>>>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/3b26fcb5-2bc9-56d9-8fa2-6918d703bb7e%40gmail.com >>>>>> >>>>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/3b26fcb5-2bc9-56d9-8fa2-6918d703bb7e%40gmail.com?utm_medium=email&utm_source=footer> >>>>>> . >>>>>> >>>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "blink-dev" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to blink-dev+...@chromium.org. >>>> >>>> To view this discussion on the web visit >>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAJh4P7EsOyYro%2BQ0a2VvWwv4SDDB4CCeaCrW8wfrCP4oMiVhgw%40mail.gmail.com >>>> >>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAJh4P7EsOyYro%2BQ0a2VvWwv4SDDB4CCeaCrW8wfrCP4oMiVhgw%40mail.gmail.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>>> >>>> >>> >> >> -- >> ~ Ziling Zhao >> >> >> -- You received this message because you are subscribed to the Google Groups "blink-dev" group. 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