Release 23.11 (“Tapir”, 2023.11/??)

Highlights

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acme-dns, a limited DNS server to handle ACME DNS challenges easily and securely. Available as services.acme-dns.

river, A dynamic tiling wayland compositor. Available as programs.river.
sitespeed-io, a tool that can generate metrics (timings, diagnostics) for websites. Available as services.sitespeed-io.

The latest version of clonehero now stores custom content in ~/.clonehero. See the migration instructions. Typically, these content files would exist along side the binary, but the previous build used a wrapper script that would store them in ~/.config/unity3d/srylain Inc_/Clone Hero.
python3.pkgs.fetchPypi (and python3Packages.fetchPypi) has been deprecated in favor of top-level fetchPypi.
etcd has been updated to 3.5, you will want to read the 3.3 to 3.4 and 3.4 to 3.5 upgrade guides
util-linux is now supported on Darwin and is no longer an alias to unixtools. Use the unixtools.util-linux package for access to the Apple variants of the utilities.

The Cinnamon module now enables XDG desktop integration by default. If you are experiencing collisions related to xdg-desktop-portal-gtk you can safely remove xdg.portal.extraPortals = [ pkgs.xdg-desktop-portal-gtk ]; from your NixOS configuration.
A new option was added to the virtualisation module that enables specifying explicitly named network interfaces in QEMU VMs. The existing virtualisation.vlans is still supported for cases where the name of the network interface is irrelevant.
services.nginx gained a defaultListen option at server-level with support for PROXY protocol listeners, also proxyProtocol is now exposed in services.nginx.virtualHosts.<name>.listen option. It is now possible to run PROXY listeners and non-PROXY listeners at a server-level, see #213510 for more details.