[wp-trac] [WordPress Trac] #52331: Consider using more precise browser versions for `browserslist`

[WordPress Trac]

#52331: Consider using more precise browser versions for `browserslist`
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 Reporter:  desrosj                              |       Owner:  (none)
     Type:  defect (bug)                         |      Status:  new
 Priority:  normal                               |   Milestone:  Awaiting
                                                 |  Review
Component:  Build/Test Tools                     |     Version:  4.9
 Severity:  normal                               |  Resolution:
 Keywords:  2nd-opinion has-patch has-unit-      |     Focuses:
  tests                                          |
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Comment (by netweb):

 Replying to [comment:3 desrosj]:
 > Was playing around with some of this today. It looks like the
 `browserlist` package does not recognize the "Spartan" releases of Edge
 listed
 [https://en.wikipedia.org/wiki/Microsoft_Edge#Spartan_release_history
 here]. The
 [https://en.wikipedia.org/wiki/Microsoft_Edge#Anaheim_release_history
 current version is within the "Anaheim" series], but this series was not
 released until 1/15/2020 (shortly after WordPress 5.3).
 >
 > Running `npx browserslist "Edge >= 1"` produces the following output
 (which does not include any Spartan releases):
 > {{{
 > edge 87
 > edge 86
 > edge 85
 > edge 84
 > edge 83
 > edge 81
 > edge 80
 > edge 79
 > edge 18
 > edge 17
 > edge 16
 > edge 15
 > edge 14
 > edge 13
 > edge 12
 > }}}
 >
 > With this in mind, I'm not sure what the versions for `Edge` should be
 for branches <= 5.3, but these adjustments to the table above are needed:
 > - 5.6: >= 85
 > - 5.5: >= 83
 > - 5.4: >= 79

 This is due to browserslist uses caniuse data, and it itself doesn't
 include the spartan series versions either:
 > https://caniuse.com/usage-table

 It's also useful to run `npx browserslist at latest --update-db` as this
 updates the caniuse database data in browserslist without having to update
 browserslist directly, this can also be used in CI code to ensure the
 caniuse data is always up to date independent of any browserslist release

 And per my previous comment, I don't think we should support any of the
 Edge Spartan releases, IE11 and latest 2 versions of Edge which is v87 &
 v88 as of yesterday with the v88 release

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Ticket URL: <https://core.trac.wordpress.org/ticket/52331#comment:27>
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