feat: Drop support for Node 12

[nickserv]

What: Don't test with node 10, 12, or 15

Why: Node 10, 12, and 15 reached EOL so let's free up some CI resources.

How: Remove 10, 12, and 15 from node test matrix.

Checklist:

• ~[ ]~ Documentation added to the docs site
• [x] Tests
• ~[ ]~ Typescript definitions updated
• [x] Ready to be merged

[codecov[bot]]

Codecov Report

Merging #379 (d5313cb) into next (719b35b) will not change coverage. The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              next      #379   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           26        26           
  Lines          624       630    +6     
  Branches       231       236    +5     
=========================================
+ Hits           624       630    +6     

Impacted Files	Coverage Δ
src/to-be-visible.js	100.00% <100.00%> (ø)
src/to-have-focus.js	100.00% <100.00%> (ø)
src/utils.js	100.00% <100.00%> (ø)

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[gnapse]

@nickmccurdy what's pending for us to merge this?

[nickserv]

This should be safe to merge now, as Node 10 and 15 are no longer supported.

[nickserv]

Update: I've also updated engines, so this should be published as a breaking change.

[IanVS]

@gnapse are you waiting a little longer to also drop node 12 support? That's coming pretty soon (less than a month, 2022-04-30).

[nickserv]

Node 12 support has ended, so I've also removed it.

Note that this is still based into next, not main. Not sure if we still want that.

[nickserv]

It would be great to merge this soon if possible. Two users have already gotten confused by #473.

[IanVS]

There's also https://github.com/testing-library/jest-dom/pull/438 waiting to be released on the next branch, maybe in a beta?

[nickserv]

I noticed, that's why I didn't change the base to main. Are we waiting on shipping other breaking changes?

[IanVS]

There is https://github.com/testing-library/jest-dom/pull/453 that I can pick back up if there's a chance it will be merged/released. I kind of gave up hope on a breaking release, until now.

[nickserv]

@IanVS Let me know if I can help with anything there. I think we might want another breaking change too: https://github.com/testing-library/jest-dom/pull/472

[IanVS]

@nickmccurdy I've updated https://github.com/testing-library/jest-dom/pull/453 if you'd like to give it a review. Thanks for the nudge.

[IanVS]

I believe this can be closed now, since #511 dropped support for node < 14.