Trying to update Nextcloud on a site hosted on an ISPCONFIG3 server. It is apparently failing due to lack of memory allocated to PHP which has to be over 512Mb. I'm unclear how best to do this in ISPCONFIG3 and welcome advice.
On the options tab of the website, there is a field for custom php.ini settings, there you enter: memory_limit = 512M
In case it is of help to anyone else having problems updating Nextcloud and running into time-outs, the CLI manual update sudo -u www-data php7.4 updater/updater.phar --no-interaction seems to avoid the time-out problem.
