Postfix 2.4.0 stable release available
Wietse venema
listed at http://www.postfix.org/. It was uploaded in the middle
of last week; a proper announcement had to wait because of travel.
467397 Mar 28 14:12 postfix-2.4.0.HISTORY
8634 Mar 28 14:18 postfix-2.4.0.RELEASE_NOTES
2931537 Mar 28 14:24 postfix-2.4.0.tar.gz
280 Mar 28 14:25 postfix-2.4.0.tar.gz.sig
When Postfix 2.3.0 was released, I wrote:
A few months later than usual, Postfix stable release 2.3.0 is
now available. The release was postponed until Postfix was
complete enough for today's email environment. Hopefully I can
now spend more time doing new projects.
The footprint of new features with Postfix 2.4.0 is significantly
smaller than with earlier releases. And that is the whole point of
approaching completeness: fewer visible changes.
Below is a brief summary of what has changed. See the RELEASE_NOTES
file for more, including compatibility issues that may affect your
site. The HISTORY file gives a blow-by-blow account of what happened
over the past year.
Wietse
- Postfix can now manage thousands of connections without needing
special main.cf, master.cf, or compile-time tweaks, on systems with
BSD kqueue, Solaris /dev/poll, or Linux epoll support.
- Milter support for message body replacement. The resulting queue
files are backwards compatible with Postfix 2.3. The existing Milter
support for message header manipulations was revised and is now
implemented by much simpler code.
- Minor improvements in TLS session cache management and in the
implementation of certificate fingerprint based authentication. A
more extensive revision of TLS internals will appear first in Postfix
2.5 snapshots.
- Improvements in queue manager performance when deferring large
amounts of mail, or when delivering mail with lots of recipients.
- Workarounds for SMTP servers that reply and hang up prematurely,
for file system clocks that are out of sync, and for broken kernel
lock management in POP servers.