Thanks Speedy. I'm nervous about upgrading as we haven't done it before & our database is external. We'd be making a bit of a jump & I want to be as prepared as possible, but it's tough finding a guide that includes potential setbacks/reconfigurations.
We have 356 users and typically ~150 connected at any given time. Right now we've got:
147 current users
81 active conversations
949 packets per minute
Our last crash was yesterday afternoon at around 3PM. I can provide logs if it will help, but I'm not sure how to sort them to get the relevant information from yesterday.