Was any breakage caused by 9.14?

Thanks for the info about proarrow. I have started the GHC 9.14 breakage inventory and added it:

github.com/tomjaguarpaw/tilapia

breakage-inventory-ghc-9.14.md

master

# GHC 9.14 breakage inventory

A catalogue of all the non-trivial fixes (that is, not just bounds
bumps) required to upgrade Haskell code that worked with GHC 9.10 to
GHC 9.14.  The [GHC 9.14 migration
guide](https://gitlab.haskell.org/ghc/ghc/-/wikis/migration/9.14)
contains a list of changes that the GHC team anticipated ahead of time
were capable of causing breakage whereas this breakage inventory is a
report of breakage that actually happened in practice.

## `base`

### Regression in `$`

In corner cases, expressions using `$` which previously type checked
no longer type check.

This issue is fixed in GHC `HEAD` and the fix may be backported to a
GHC 9.14 point release.

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