Hello Folks!
I am but confused what is the stable releases and not stable releases and what is considered to be some beta version.
We have production here and only want to upgrade using stable releases.
Can someone please give an explanation, what is the best practice choosing upgrade versions ?
Stay on older version
6.29.1 or older
Sw become like a lotto 
Bugfix is considered to be the most stable of all versions right now. Current bugfix version is 6.30.4.
More info here:
http://www.stubarea51.net/2015/08/04/mikrotik-unveils-new-routeros-development-cycle/#comment-85
Thanks!
I did get a problem with flapping switch ports and devices that suddenly ethernet ports started to malfunction, going on and off or having very limited capability with versions after 6.29 and had to install 6.33rc3 on those devices to get them stabilized again.
Right now I am using 6.32.1 on majority of production devices and 6.32.2 on a few.
The schema for patching looks very much to the AIX calendar (and for sure many other vendors uses similar patch cycles).
Did you update your routerboard firmware?
Sent from my Nexus 4 using Tapatalk
Yes on some devices.