I have IntelliJ IDEA 2020.1.2 on my laptop. When I did Help ->Check for Updates..., it said that "IntelliJ IDEA 2020.1.4" is available. I would then select to proceed with the update. After it downloaded the patch files, it would then close the IDE. I would then briefly see an update pop-up windows, which would then disappear. After that, the IDE would launch again. But when I checked the version via Help -> About, I could see that I am still on 2020.1.2.
I tried a few times and it's always the same. I checked the idea_update.log, and I can see that the last few lines are "... Util$.visitFile...".
What could be the reason for the failure and what can I do?
On a desktop machine, I was able to successfully update to 2020.1.4, and then to 2020.2 (after a few tries due to connection failures and getting HTTP 503).
Could you please check, that you can run
python --version
on the command line, and get something like
#Python 3.7.9
As I just found out, the updater depends on a working Python binary. If the command does not work, you most likely want to install Python