On another thread @Ross wrote:
That’s today, probably in a few hours.
So, assuming it starts today, we will be moving the seed vault onto Testnet5 as soon as it starts (using the Testnet5 release binary, of course). community1 would probably keep running despite that but you might want to consider it to be in recess for the duration of Testnet5.
Once Testnet5 starts winding down I’ll move the seed vault back to community1, with whatever binary is current (“latest” build) at that time.