I've upgraded 3 of the machines in the farm so far and a few quirks I have noticed with trixie when compared with the previous version (bookworm).
1. The swap partition allocated is huge. By default it gave a 48G swap partition on a machine with 64G of memory (approx 75% of memory size).
2. tmpfs is now in memory, which is probably why they made the swap so big. You can set it back to being on disk but anything created in tmpfs will be slower. It will cleanup files in tmpfs if they are in memory. I switched the two machines with 64G of memory to use disk instead of memory as I rarely see anything in tmpfs.
3. The installation failed when I did a machine with only a 512G M.2 SSD. It ran out of disk space during the install. I had to upgrade the machine to a 1G M.2 SSD to install trixie. I was installing mate as a desktop without any additional software. If it made it through I would have removed various packages after the install, but it failed near the end of the installation without any warning so I didn't get a chance. Debian could update the installer or tasksel to check for available space.
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