[An on-line version of this announcement will be available at http://www.postfix.org/announcements/postfix-3.3.1.html]
Fixed in Postfix 3.3:
Postfix did not support running as a PID=1 process, which complicated Postfix deployment in containers. The "postfix start-fg" command will now run the Postfix master daemon as a PID=1 process if possible. Thanks for inputs from Andreas Schulze, Eray Aslan, and Viktor Dukhovni.
Segfault in the postconf(1) command after it could not open a Postfix database configuration file due to a file permission error (dereferencing a null pointer). Reported by Andreas Hasenack, fixed by Viktor Dukhovni.
Fixed in Postfix 3.3, 3.2, 3.1, 3.0:
The luser_relay feature became a black hole, when the luser_relay parameter was set to a non-existent local address (i.e. mail disappeared silently). Reported by Jørgen Thomsen.
Missing error propagation in the tlsproxy(8) daemon could result in a segfault after TLS handshake error (typically, dereferencing a 0xffff...ffff pointer). This daemon handles the TLS protocol when a non-whitelisted client sends a STARTTLS command to postscreen(8).
Fixed in Postfix 3.2, 3.1, 3.0:
Added more than 20 missing *_maps parameter names to the default proxy_read_maps setting, making the proxymap service easier to use.
To avoid spurious warning messages, the postconf(1) command now scans only built-in or service-defined parameter values (including their $name expansions) for ldap, *sql, etc. database names.
You can find the updated Postfix source code at the mirrors listed at http://www.postfix.org/.