Please advise me what is the difference between
Current firmware : 3.18
Upgrade firmware : 3.24
Should I download somewhere new firmware and put somewhere ? or this is automated proces ?
Should I upgrade my routerboard 2011UiAS?
http://wiki.mikrotik.com/wiki/RouterBOOT_changelog
Upgrade is not automatic, you need to push ‘Upgrade’ in WinBox (System->Routerboard) and then do a reboot.
So after upgrade command this will download and upgrade firmware ?
Where I can find difference between current firmware : 3.18, and new 3.24 ?
After run this comand is firmware upgraded. Then is needed restart router for perform upgrade.
Where I can find difference between current firmware : 3.18, and new 3.24 ?
Do you see a post one before you?
Right 
but for my 2011UiAS I don’t see any important features or fixes.
THX!