Below are the major changes of the released versions and links to more detailed release notes.
Stable
Similar to version 0.4.8.20, we released 0.4.8.21 yesterday due to additional issues discovered in relation to the fixes included in the previous stable release. This update addresses another medium-severityremote crash and memory DoS vulnerabilities affecting the Conflux subsystem.
As of around 23:00 UTC yesterday, our Debian packages were made public, and at the time of writing approximately 40% of Exit relays have upgraded—what we consider a sufficient threshold to proceed with this announcement.
For Debian Trixie it is possible to upgrade your tor manually by installing a package from Debian sid: Debian -- Details of package tor in sid (choose your correct architecture)