- Derivations setting both `separateDebugInfo` and one of `allowedReferences`, `allowedRequisites`, `disallowedReferences` or `disallowedRequisites` must now set `__structuredAttrs` to `true`. The effect of reference whitelisting or blacklisting will be disabled on the `debug` output created by `separateDebugInfo`.
-`k2pdfopt` has been removed, as it's broken.
-`victoriametrics` no longer contains VictoriaLogs components. These have been separated into the new package `victorialogs`.
-`mx-puppet-discord` was removed from Nixpkgs along with its NixOS module as it was unmaintained and was the only user of sha1 hashes in tree.