Im running User manager on v.5.20
Is there any reason I should go to v6.x
Is there anything different between those two ?
I hate updating, cause the database is too big and if something goes wrong my BOSS will kill me:)
Its working fine now, but if there is something new… I could think about it.
Could you not convince your boss to purchase a second router(s) for testing new updates?
You have to give yourself a question.
Work the router board properly without upgrade?
If you can say YES don’t upgrade the router.
If the router board not working properly.
Upgrade the router board but test the configuration first on another routerboard so als sayd n21roadie.
Nice catch 
for testing… hm… I wiil give myself a shot
5.20 is working fine now…
Im asking… is there anything new, some tool, some functionality that might be useful in the v6.x
Basically Im looking for a good reason to make my boss waste 400$ at first point for testing.
So if you know of some difference between those two, please share…
Ask you boss how much is downtime gonna to cost?
And second router performs two functions (1) Failover replacement should primary router fail (2) testing new upgrades and performance enhancements