Subject: bug#50921: GNU ELPA TLS errors: server is returning chain with expired root

From: Glenn Morris <[email-masked]>
Date: Mon, 04 Oct 2021 11:34:33 -0400

Nice summary of what I assume is the same issue at:

http://savannah.nongnu.org/forum/forum.php?forum_id=10054

   If you are experiencing invalid certificate chain problems with Let's
   Encrypt certificates (not a Savannah problem) then please upgrade
   your client to the latest security patches for your system.