The official Release Notes appear to have been updated recently (as of writing this the last update appears to have taken place on 3rd of June) to include the following statement:
The -d switch is necessary to upgrade from Ubuntu 18.04 LTS as upgrades have not yet been enabled and will only be enabled after the first point release of 20.04 LTS.
Also note that 20.04.1 appears to have been pushed back (~ a week ago) to 6 Aug 2020.
TLDR (as of 15 Aug 2020):
This page is the canonical tracking document for the first Focal Fossa point-release (20.04.1). It’s a live document. The Ubuntu release team will be updating it as we work on releasing 20.04.1. […] Upgrades from 18.04 to 20.04.1 are still disabled as we are working through a few upgrade blockers
The answers (so far) do not answer the question. The question is pretty simple. Ubuntu.com points to a "FinalRelease", which turns out to be a "Development Release", see evidence below. I'm not asking how and when to upgrade. I'm pointing out what seems to me to be an apparent inconcistency (in semantics, linguistics, logic) in the way Ubuntu names or labels its releases.
From an answer to the question I'd except someone to pick up and acknowledge this inconsistency. An answer could start with a "Yes, ..." or a "No, ...", for starters.
(Moreover, a good answer could distinguish between the release being in dev stage and/or the upgrade process (e.g. from LTS to LTS) being in dev stage, if appropriate.)
This question, as I see it, is not a duplicate. Futher, I think it is a question which deserves a non-patronizing answer. Thanks.
https://wiki.ubuntu.com/FocalFossa/ReleaseSchedule indicates that today (23rd April 2020) the new Ubuntu 20.04 LTS is to be released.
See "condensed screenshot" here:
Indeed, it seems that that's what happened, see https://ubuntu.com/download/desktop and https://wiki.ubuntu.com/FocalFossa/ReleaseNotes:
However, when following the instructions to upgrade (from 18.04 LTS to 20.04 LTS) found here and elsewhere (edit: actually in the official release notes, too!), even prior to the July point release, I'm a bit confused to see that the instruction is to use
update-manager -d which also points to the "Development Release" (see screenshot below) rather than the "FinalRelease" (see screenshot and link above).
Is the "Final Release" (which I'm after) the/a "Development Release"? Why isn't it called something like "Production Release" or "Final Release"? When will it no longer be referred to as "Development Release"? In July? I'm confused :(