I have to say 2.619 hasn't crashed since I updated to it.
So maybe I am/was seeing something different?
2.599 would just lock up on me after a random amount of time (between a few minutes to a day or so) but would come back for a while after a reboot (pull power and replace). Both 2.586 and now 2.619 so far just sit there working nicely. The Pi mostly sits idle (it's used as an internet streaming radio) and 2.599 would sometimes crash whilst just sat there, and other times whilst playing (output just stopped and dashboard wasn't accessible via the web interface or the API).