Disable temporarily the PDF reader of *Thunderbird* to protect from a security vulnerability related to the handling of fonts in PDF files.([[!cve CVE-2024-4367]])
Fix the configuration of new printers when some printers were already configured in the Persistent Storage in Tails 5.23 or earlier.([[!tails_ticket 20271]])
If you cannot do an automatic upgrade or if Tails fails to start after an automatic upgrade, please try to do a [[manual upgrade|doc/upgrade/#manual]].