-`services.openssh.settings.AcceptEnv` now explicitly defined as an option that takes a list of strings, to facilitate option merging. Setting it to a string value is no longer supported.
-`nodejs-slim` has a `npm` output, and `nodejs` no longer has a `libv8` output.
- All Xfce packages have been moved to top level (e.g. if you previously added `pkgs.xfce.xfce4-whiskermenu-plugin` to `environment.systemPackages`, you will need to change it to `pkgs.xfce4-whiskermenu-plugin`). The `xfce` scope will be removed in NixOS 26.11.
-`vimPlugins.nvim-treesitter` has been updated to `main` branch, which is a full and incompatible rewrite. If you can't or don't want to update, you should use `vimPlugins.nvim-treesitter-legacy`.