Postfix 2.1.0
Postfix 2.1.1
Postfix 2.1.4
Postfix 2.1.5
Import Postfix-2.2.5.
Import Postfix-2.2.5.
Import postfix-2.2.6.

Changelog for 2.2.5 -> 2.2.6:

20050806

Workaround: accept(2) fails with EPROTO when the client
already disconnected (SunOS 5.5.1). File: sane_accept.c.

20050815

Workaround: old Solaris compilers can't link an archive
without globally visible symbols. File: tls/tls_misc.c.

20050922

Bugfix: the *SQL clients did not uniformly choose the
database host from the available pool of servers due to an
off-by-one error, so that the "last" available server was
not selected. Leandro Santi. Files: dict_mysql.c, dict_pgsql.c.

20050929

Paranoia: don't ignore garbage in SMTP or LMTP server replies
when ESMTP command pipelining is turned on. For example,
after sending ".<CR><LF>QUIT<CR><LF>", Postfix could recognize
the server's 2XX QUIT reply as a 2XX END-OF-DATA reply after
garbage, causing mail to be lost. The SMTP and LMTP clients
now report a remote protocol error and defer delivery.
Files: smtp/smtp_chat.c, smtp/smtp_trouble.c, lmtp/lmtp_chat.c,
lmtp/lmtp_trouble.c.

20051011

Bugfix: raise the "policy violation" flag when a client
request exceeds a concurrency or rate limit.  File:
smtpd/smtpd.c.

Bugfix (cut-and-paste error): don't reply with 421 (too
many MAIL FROM or RCPT TO commands) when we aren't closing
the connection.  File: smtpd/smtpd.c.

20051013

Bugfix: don't do smtpd_end_of_data_restrictions after the
transaction failed due to, e.g., a write error.  File:
smtpd/smtpd.c.

Cleanup: the SMTP server now enforces the message_size_limit
even when the client did not send SIZE information with the
MAIL FROM command.  This protects before-queue content
filters against over-size messages.  File: smtpd/smtpd.c.

20051105

Workaround: the next-hop logical destination information
for connection caching was reset only after a good non-TLS
connection, so that cached connections to non-TLS backup
servers could suck away traffic from TLS primary servers
(the Postfix SMTP client cannot cache an open TLS connection).
Found during code review. Fixing this requires more change
than is allowed in a stable release.  File: smtp/smtp_connect.c.

20051108

Bugfix: two messages could get the same message ID due to
a race condition. This time window was increased when queue
file creation was postponed from MAIL FROM until the first
accepted RCPT TO.  The window is closed again. Found by
Victor. Files: global/mail_stream.c, global/mail_queue.c,
cleanup/cleanup_message.c. This code is back-ported from
the Postfix 2.3 snapshot release.

20051119

Bugfix: the queue manager did not write a per-recipient
defer logfile record when the delivery agent crashed after
the initial handshake with the queue manager, and before
reporting the delivery status to the queue manager.  Files:
*qmgr/qmgr_deliver.c.

20051126

Log warning when REDIRECT, FILTER, HOLD and DISCARD are
used in smtpd_etrn_restrictions. File: smtpd/smtpd_check.c.

20051128

Bugfix: moved code around from one place to another to make
REDIRECT, FILTER, HOLD and DISCARD access(5) table actions
work in smtpd_end_of_data_restrictions.  PREPEND will not
be fixed; it must be specified before the message content
is received.  Files: smtpd/smtpd.c, smtpd/smtpd_check.c,
cleanup/cleanup_extracted.c, pickup/pickup.c.
Import postfix-2.2.6.

Changelog for 2.2.5 -> 2.2.6:

20050806

Workaround: accept(2) fails with EPROTO when the client
already disconnected (SunOS 5.5.1). File: sane_accept.c.

20050815

Workaround: old Solaris compilers can't link an archive
without globally visible symbols. File: tls/tls_misc.c.

20050922

Bugfix: the *SQL clients did not uniformly choose the
database host from the available pool of servers due to an
off-by-one error, so that the "last" available server was
not selected. Leandro Santi. Files: dict_mysql.c, dict_pgsql.c.

20050929

Paranoia: don't ignore garbage in SMTP or LMTP server replies
when ESMTP command pipelining is turned on. For example,
after sending ".<CR><LF>QUIT<CR><LF>", Postfix could recognize
the server's 2XX QUIT reply as a 2XX END-OF-DATA reply after
garbage, causing mail to be lost. The SMTP and LMTP clients
now report a remote protocol error and defer delivery.
Files: smtp/smtp_chat.c, smtp/smtp_trouble.c, lmtp/lmtp_chat.c,
lmtp/lmtp_trouble.c.

20051011

Bugfix: raise the "policy violation" flag when a client
request exceeds a concurrency or rate limit.  File:
smtpd/smtpd.c.

Bugfix (cut-and-paste error): don't reply with 421 (too
many MAIL FROM or RCPT TO commands) when we aren't closing
the connection.  File: smtpd/smtpd.c.

20051013

Bugfix: don't do smtpd_end_of_data_restrictions after the
transaction failed due to, e.g., a write error.  File:
smtpd/smtpd.c.

Cleanup: the SMTP server now enforces the message_size_limit
even when the client did not send SIZE information with the
MAIL FROM command.  This protects before-queue content
filters against over-size messages.  File: smtpd/smtpd.c.

20051105

Workaround: the next-hop logical destination information
for connection caching was reset only after a good non-TLS
connection, so that cached connections to non-TLS backup
servers could suck away traffic from TLS primary servers
(the Postfix SMTP client cannot cache an open TLS connection).
Found during code review. Fixing this requires more change
than is allowed in a stable release.  File: smtp/smtp_connect.c.

20051108

Bugfix: two messages could get the same message ID due to
a race condition. This time window was increased when queue
file creation was postponed from MAIL FROM until the first
accepted RCPT TO.  The window is closed again. Found by
Victor. Files: global/mail_stream.c, global/mail_queue.c,
cleanup/cleanup_message.c. This code is back-ported from
the Postfix 2.3 snapshot release.

20051119

Bugfix: the queue manager did not write a per-recipient
defer logfile record when the delivery agent crashed after
the initial handshake with the queue manager, and before
reporting the delivery status to the queue manager.  Files:
*qmgr/qmgr_deliver.c.

20051126

Log warning when REDIRECT, FILTER, HOLD and DISCARD are
used in smtpd_etrn_restrictions. File: smtpd/smtpd_check.c.

20051128

Bugfix: moved code around from one place to another to make
REDIRECT, FILTER, HOLD and DISCARD access(5) table actions
work in smtpd_end_of_data_restrictions.  PREPEND will not
be fixed; it must be specified before the message content
is received.  Files: smtpd/smtpd.c, smtpd/smtpd_check.c,
cleanup/cleanup_extracted.c, pickup/pickup.c.
postfix-2.2.8
postfix-2.2.8
postfix 2.2.9
Postfix 2.2.10.
postfix 2.3.0
postfix 2.3.2
postfix 2.3.3
Postfix 2.3.4
postfix-2.3.5
postfix 2.3.7
postfix 2.4.1
Update Postfix to 2.4.5.

2.4.2 through 2.4.5 include various build, milter, and other fixes.