Thanks. Didn't know that. I wish there was some changelog on blender.org to new blender builds.
May 22 2019
May 9 2019
Apr 11 2019
Mar 30 2019
Mar 23 2019
I think that you might need newer GPU drivers. The ones that come with 18.04 per default is ancient by now.
What is the output of glxinfo | grep OpenGL ?
I was drawing my character and managed to make extremely crashy blender file.
Yes, it always crashes in debug-gpu mode. I mean, it may work okay for some time, but after I do some action (not some particular action, as I can see) and press ctrl+z it may crash blender.