I tried to update my installation via the updater, but it stopps at the first point “Initializing / Current version is 12.0.4.”. Nothing else happens. If I open the log file (updater.log) I get the following entries:
What’s wrong with my installation? The server ist connected to the internet and can access the internet. The installation of apps is possible without problems.
I finally managed to come one step further. In my case the updater could not download files from *.nextcloud.org. So if you have a firewall that restrict your internet access you probably want to whitelist access to *.nextcloud.com and *.nextcloud.org. If the updater cannot download files from those domains it will fail without printing any error message! Damn PHP! In Java you would at least get an IOException or something similar. Why can PHP not be like Java.