Frozen/Reduced Chrome UA

[nielsbasjes]

From Discover on Google https://www.zdnet.com/article/google-to-phase-out-user-agent-strings-in-chrome/

[nielsbasjes]

https://www.chromestatus.com/feature/5704553745874944

We want to freeze (but not remove) the User Agent string ...

At this point I have not been able to find an indication what the "frozen" User Agent will look like.

Similar:
mozilla/standards-positions#202 (comment)
https://twitter.com/_scottlow/status/1206831008261132289

[nielsbasjes]

Looking at these changes we find several strings
https://chromium.googlesource.com/chromium/src.git/+/ac24e578a3694c8f4c6c35ee3b7a8d046d686e67%5E%21/

Added them as testcases.

[nielsbasjes]

Waiting for a Chrome version that actually changes this.

[nielsbasjes]

Chrome 83 now has it built in.
The code clearly makes that ALL desktop devices will show the same OS.
So Chrome on Linux or Mac will show Windows 10 !

const char kDesktop[] =
    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, "
    "like Gecko) Chrome/%s.0.0.0 Safari/537.36";
const char kAndroid[] =
    "Mozilla/5.0 (Linux; Android 9; Unspecified Device) "
    "AppleWebKit/537.36 (KHTML, like Gecko) Chrome/%s.0.0.0 "
    "Safari/537.36";
const char kAndroidMobile[] =
    "Mozilla/5.0 (Linux; Android 9; Unspecified Device) "
    "AppleWebKit/537.36 (KHTML, like Gecko) Chrome/%s.0.0.0 Mobile "
    "Safari/537.36";

[nielsbasjes]

Keeping this issue open to track what the next Chromium/Chrome/Edge versions do.

[nielsbasjes]

https://bugs.chromium.org/p/chromium/issues/detail?id=955620

[nielsbasjes]

Posted suggestions here: https://groups.google.com/a/chromium.org/g/blink-dev/c/-2JIRNMWJ7s/

[nielsbasjes]

https://www.chromestatus.com/feature/5704553745874944
Apparently Chrome 95 (now is 94) will be the next step.

[nielsbasjes]

https://www.chromium.org/updates/ua-reduction

[nielsbasjes]

Apparently Edge 94 and 95 no longer have the freeze/reduce option in the flags.

[nielsbasjes]

https://techcommunity.microsoft.com/t5/discussions/the-quot-freeze-quot-quot-reduce-quot-user-agent-from-chromium/m-p/2876661

[nielsbasjes]

https://twitter.com/nielsbasjes/status/1454743997675720707

[nielsbasjes]

Quote:
Also note that the macOS platform version was already capped to 10_15_7 in Chrome 90 for site compatibility reasons.
https://bugs.chromium.org/p/chromium/issues/detail?id=1175225

[nielsbasjes]

All known/documented reductions have been implemented.

[Chaho12]

All known/documented reductions have been implemented.

From what version did you implement all reduced chrome ua? Is it starting from v7?

• https://github.com/nielsbasjes/yauaa/releases/tag/v7.0.0

Also, what is the minimum java req to use this library? is it 1.8 ? or java 11

• because using java with java 8 does not work for recent version 7.13.0
• https://github.com/nielsbasjes/yauaa/blob/main/pom.xml#L34-L40

Never mind. I just found out that java 8 or later works, but in order to use java 8, need to add compatible code

• https://github.com/nielsbasjes/yauaa/blob/main/analyzer/src/it/JavaPlain/Java8/src/main/java/nl/example/Demo.java#L35-L36
• https://github.com/nielsbasjes/yauaa/blob/main/analyzer/pom.xml#L69-L81