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Mapping Safari releases to Safari TP versions

Safari release notes history and Technical Preview versions -> release version mapping

Official docs

Safari release history

Release date notes TP version Chrome stable around that time HTML5test score (HTTP, HTTPS) Kangax ES6 score
15.0 2021.09 123-126? M93
14.1 2021.04 notes blog 110-122 M90
14.0 2020.09 notes blog 99-109 M85 451, 492
13.1 2020.03 notes blog 90-98 M80 449, 490
13.0 2019.10 notes blog 77-89 M78 446, 487 99%
12.1 2019.03 notes blog 59-76 M73 459, 474 99%
12.0 2018.09 notes 48-58 M69
11.1 2018.03 notes blog 37-47 M65 454, 469 98%
11.0 2017.09 notes blog 21-36 M61
10.1 2017.03 notes blog 14-20 M57 407 98%
10.0 2016.09 notes M54
9.1 368 53%
9.0
8.1
8.0 352 17%
7.1 347 17%
7.0

Mapping AppleWebKit/ from useragent string to Safari version

Based on my tests (crunching through the logs and looking at useragent) there's no 1-1 correspondence between Safari version and AppleWebKit version (sometimes the same version of Safari is observed with multiple webkit versions in the wild - I don't quite understand this), but for 95%+ of the cases, the following holds:

  • Safari 11.1 and all newer have AppleWebKit/605.1.15 (this part of UI is now frozen! ^)
  • Safari 11.0 seems to be mostly AppleWebKit/604.*
  • Safari 10.1 seems to be mostly AppleWebKit/603.*
  • Safari 10.0 seems to be mostly AppleWebKit/602.
  • Safari 9.1 seems to be mostly AppleWebKit/601.*
  • Safari 9.0 seems to be mostly AppleWebKit/601.*
  • Safari 8.0 seems to be mostly AppleWebKit/600.*
  • Safari 7.0 seems to be mostly AppleWebKit/537.*
  • Safari 6.0 seems to be mostly AppleWebKit/536.*

^ on iOS, there are two misaligned versions sigh: AppleWebKit/605.1.15 ... Safari/604.1

Sources

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