Ubuntu 20.04 LTS Focal Fossa was released April 23th. It is an LTS release, which means that it will be supported for a longer time and also that point versions will be released from time to time as a Ubuntu 20.04.1 which should have arrived next Tuesday, July 23rd, but the new ISO image won't be available until two weeks later. A) Yes reported yesterday Steve Langasek, who is primarily responsible for Canonical's OS releases.
The new Ubuntu 20.04.1 release date has become the 6 August. But this delay will also affect another LTS version, in this case that of Bionic Beaver, which will see how your Ubuntu 18.04.5 will be delayed for a week, going from August 6 originally planned to August 13. In his email, Langasek does not give any reason for these delays, so the exact reasons are not known. Considering that the COVID-19 crisis did not affect the April launch, it is almost certain that this time it had nothing to do with it either.
Ubuntu 20.04.1 and Ubuntu 18.04.5 delay their arrival
Many users complained about bugs in Focal Fossa and Canonical has been correcting them since April. There are users who wait for a first point update precisely to avoid these bugs, for which they have to download the new ISO and install the operating system from it or update from the same operating system three months late.
The users that we update in April will not have to do anything if we want to receive all these patches. The new images are for zero installs and those of us who already had it installed will have received the updates since the launch of Focal Fossa.
Ubuntu 20.04 LTS Focal Fossa arrived at the end of April with new features such as improvements to the ZFS file system as root, a new version of Yaru and, what most interests many users, a GNOME 3.36 that greatly improved performance from previous versions.