All commits pass clippy and formatting. Let me know if you want any of these to be split out into other PRs!

(FWIW, you had a nice commit history before but now there's a bunch of back and forth there... maybe use rebase -i to skip the commits that introduce the Cow and introduce ring to the public API, instead of reverting them with later commits?)

(FWIW, you had a nice commit history before but now there's a bunch of back and forth there... maybe use rebase -i to skip the commits that introduce the Cow and introduce ring to the public API, instead of reverting them with later commits?)

Sure! I did see that you are not squash-merging in here so I figured you'd care about the commit history :)

Codecov Report

Merging #166 (dc38152) into main (aaf4dd7) will decrease coverage by 0.04%.
The diff coverage is 76.92%.

@@            Coverage Diff             @@
##             main     #166      +/-   ##
==========================================
- Coverage   72.14%   72.11%   -0.04%     
==========================================
  Files           7        7              
  Lines        1881     1886       +5     
==========================================
+ Hits         1357     1360       +3     
- Misses        524      526       +2     

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Sorry about the closing stuff, I fuffed around with rebase too much 😅

This PR is now entirely focused on upgrading ring.

Okay except for the two comments by djc and cpu, where the one by djc can also be addressed in a subsequent PR (as long as it's done before a release).

Fixed! It is a breaking change so you might want to release a non-breaking one before merging this one.