[An on-line version of this announcement will be available at http://www.postfix.org/announcements/postfix-3.4.6.html]
Fixed for all supported stable releases:
Workaround for implementations that hang Postfix while shutting down a TLS session, until Postfix times out. With "tls_fast_shutdown_enable = yes" (the default), Postfix no longer waits for the TLS peer to respond to a TLS 'close' request. This is recommended with TLSv1.0 and later.
Fixed a too-strict censoring filter that broke multiline Milter responses for header/body events. Problem report by Andreas Thienemann.
The code to reset Postfix SMTP server command counts was not called after a HaProxy handshake failure, causing stale numbers to be reported. Problem report by Joseph Ward.
Fixed for Postfix 3.3 and 3.4:
"smtp_mx_address_limit = 0" no longer meant 'unlimited'. Problem report by Luc Pardon.
Fixed for Postfix 3.4:
postconf(5) documentation: tlsext_padding is not a tls_ssl_options feature.
smtp(8) documentation: updated the BUGS section text about Postfix support to reuse open TLS connections.
Portability: added "#undef sun" to util/unix_dgram_connect.c.
You can find the updated Postfix source code at the mirrors listed at http://www.postfix.org/.