The changes in python-acme were comparatively minor. A few bugs were fixed; one new feature was added to the API (support for DNS-01 challenges); some protocol messages were removed (because they were believed to have security problems, were never used by Let's Encrypt, and were removed from the IETF ACME draft).
None of those changes should negatively impact non-Certbot ACME clients that use python-acme. It also does not appear that any of those ACME clients are packaged in Debian unstable: apt-cache rdepends python-acme python-acme Reverse Depends: python-certbot python-certbot-nginx python-certbot-apache -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1640978 Title: letsencrypt 0.4.1 contains numerous bugs fixed upstream To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/python-acme/+bug/1640978/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs