v18.0 Stable Release #3 - 10 Updated ISOs & Hub Builds - Proxmox/LXC builds

We have the 3rd v18.0 stable release batch ready to roll (see all v18.x related announcements here). This batch brings the total number of v18.0 stable releases so far to 23! As per usual, it's taking longer than I would like, but they are coming together.