It's time again. The LTS version of Ubuntu Server 18.04 Bionic receives a system upgrade to LTS 20.04 Focal Fossa. There is no reason to upgrade yet. 18.04 is an LTS version and therefore it will continue to be supplied with system and security updates. In principle, a productive system should not be upgraded prior 20.04.1 version, as a number of bugs will still be fixed by then. This version usually appears about 3 months after publication of 20.04, most probably around mid-July. You can also see this as soon as you try to update:

You might discover the following error on Apache webserver:

413 Request Entity Too Large

There are several causes for this type of error.

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