Hey, everyone - we've got some exciting news!
Survival is now updated to MC 1.21.10!
This took a considerably long amount of time - so much so that 1.21.11 is set to come out in just a few days 
- but hey, better late than never, right? The main source of the delay was our reliance on a plugin called Custom Ore Generator, which was used for generating Durite Ore in The End.
With this update, we've gone ahead and replaced this outright, with it handled in our custom content plugin instead. This may result in slightly different ore generation (veins might be shaped differently and might not be 1:1 with the previous rarity), but it should generally be about the same as before. One other small (but annoying) issue is that Dynmap is currently offline for Survival, as it remains out-of-date - though we didn't feel this was worth holding the update back over.
Other than that, however, everything should be just as you remember it - no resets or anything, just access to the new stuff added since 1.21.4. As per usual, if you run into any issues, be sure to submit a bug report on the website or by using /bugreport ingame!