From: Makarius <firstname.lastname@example.org>
Dear Isabelle users,
after 2 more weeks of the rather stable RC2, we now have
Isabelle2021-RC3 with several relevant changes, see also the blog entry
The current release candidate website is
There are a few weeks left before Isabelle2021 will become final and
unchangeable. The best time to test and report observations is now.
Any feedback about release candidates should be posted with a meaningful
Subject including the version (not just a clone of this announcement).
Last updated: Jan 25 2022 at 01:11 UTC