A key thing to note:
"Updating with nixos-rebuild boot and rebooting is recommended, since in some rare cases the nixos-rebuild switch into the new generation on a live system might fail due to missing mount units."

Also I'm not sure if this is the beta release as Package Search currently(as of 3:22am) displays channel option: "23.11 Beta" (this might get updated soon who knows)

Other notable things that I've seen in the release notes:

• sudo-rs is now supported
• btrfs now can be auto resized
• NetworkManager now uses nftables backend unconditionally
• new service options for SearXNG "for better support"
• new option for QEMU for enabling "specifying explicitly named network interfaces in QEMU VMs"
• "virt-manager, an UI for managing virtual machines in libvirt, is now available as programs.virt-manager."
  • (this one's gonna be interesting for my config as I currently have it installed as a package, I'm gonna guess it's probably fine)
• fail2ban configuration with attribute sets
• "New boot.bcache.enable (default enabled) allows completely removing bcache mount support."

Either way I'd def recommend checking out their announcement and releases page for more details~
Thanks to the devs for making an awesone distro!🤗🎉