Prereq: "2.9.0"
diff -cr --new-file /var/tmp/postfix-2.9.0/src/global/mail_version.h ./src/global/mail_version.h
*** /var/tmp/postfix-2.9.0/src/global/mail_version.h	Tue Jan 31 16:07:20 2012
--- ./src/global/mail_version.h	Sat Feb 18 07:14:58 2012
***************
*** 20,27 ****
    * Patches change both the patchlevel and the release date. Snapshots have no
    * patchlevel; they change the release date only.
    */
! #define MAIL_RELEASE_DATE	"20120131"
! #define MAIL_VERSION_NUMBER	"2.9.0"
  
  #ifdef SNAPSHOT
  # define MAIL_VERSION_DATE	"-" MAIL_RELEASE_DATE
--- 20,27 ----
    * Patches change both the patchlevel and the release date. Snapshots have no
    * patchlevel; they change the release date only.
    */
! #define MAIL_RELEASE_DATE	"20120218"
! #define MAIL_VERSION_NUMBER	"2.9.1"
  
  #ifdef SNAPSHOT
  # define MAIL_VERSION_DATE	"-" MAIL_RELEASE_DATE
diff -cr --new-file /var/tmp/postfix-2.9.0/HISTORY ./HISTORY
*** /var/tmp/postfix-2.9.0/HISTORY	Tue Jan 31 16:13:52 2012
--- ./HISTORY	Sat Feb 18 07:13:45 2012
***************
*** 17608,17610 ****
--- 17608,17631 ----
  	have been updated when it was re-purposed to handle DSN
  	SUCCESS notifications. Problem reported by Sabahattin
  	Gucukoglu.  File: bounce/bounce_trace_service.c.
+ 
+ 20120202
+ 
+ 	Bugfix (introduced: Postfix 2.3): the "change header" milter
+ 	request could replace the wrong header. A long header name
+ 	could match a shorter one, because a length check was done
+ 	on the wrong string.  Reported by Vladimir Vassiliev.  File:
+ 	cleanup/cleanup_milter.c.
+ 
+ 20120214
+ 
+ 	Bugfix (introduced: Postfix 2.4): extraneous null assignment
+ 	caused core dump when postlog emitted the "usage" message.
+ 	Reported by Kant (fnord.hammer). File: postlog/postlog.c.
+ 
+ 20120217
+ 
+ 	Bugfix (introduced 20111219): sendmail -bs segfault, due
+ 	to a missing guard statement after an smtpd_check_rewrite()
+ 	call was moved closer to the command processor loop. Fix
+ 	by Bartek Szady. File: smtpd/smtpd.c.
diff -cr --new-file /var/tmp/postfix-2.9.0/src/cleanup/cleanup_milter.c ./src/cleanup/cleanup_milter.c
*** /var/tmp/postfix-2.9.0/src/cleanup/cleanup_milter.c	Sat Jan 14 20:39:14 2012
--- ./src/cleanup/cleanup_milter.c	Thu Feb  2 09:35:03 2012
***************
*** 845,852 ****
  	     /* Reset the saved PTR record and update last_type. */ ;
  	else if ((header_label == 0
  		  || (strncasecmp(header_label, STR(buf), len) == 0
! 		      && (IS_SPACE_TAB(STR(buf)[len])
! 			  || STR(buf)[len] == ':')))
  		 && --index == 0) {
  	    /* If we have a saved PTR record, it points to start of header. */
  	    break;
--- 845,851 ----
  	     /* Reset the saved PTR record and update last_type. */ ;
  	else if ((header_label == 0
  		  || (strncasecmp(header_label, STR(buf), len) == 0
! 		      && (strlen(header_label) == len)))
  		 && --index == 0) {
  	    /* If we have a saved PTR record, it points to start of header. */
  	    break;
diff -cr --new-file /var/tmp/postfix-2.9.0/src/postlog/postlog.c ./src/postlog/postlog.c
*** /var/tmp/postfix-2.9.0/src/postlog/postlog.c	Tue Jan 24 19:41:08 2012
--- ./src/postlog/postlog.c	Tue Feb 14 09:14:44 2012
***************
*** 207,213 ****
      if (isatty(STDERR_FILENO))
  	msg_vstream_init(tag, VSTREAM_ERR);
      msg_syslog_init(tag, LOG_PID, LOG_FACILITY);
-     tag = 0;
  
      /*
       * Check the Postfix library version as soon as we enable logging.
--- 207,212 ----
diff -cr --new-file /var/tmp/postfix-2.9.0/src/smtpd/smtpd.c ./src/smtpd/smtpd.c
*** /var/tmp/postfix-2.9.0/src/smtpd/smtpd.c	Sun Jan 15 10:04:20 2012
--- ./src/smtpd/smtpd.c	Fri Feb 17 09:25:38 2012
***************
*** 2353,2364 ****
  	    return (-1);
  	}
      }
!     err = smtpd_check_rewrite(state);
!     if (err != 0) {
! 	/* XXX Reset access map side effects. */
! 	mail_reset(state);
! 	smtpd_chat_reply(state, "%s", err);
! 	return (-1);
      }
  
      /*
--- 2353,2366 ----
  	    return (-1);
  	}
      }
!     if (SMTPD_STAND_ALONE(state) == 0) {
! 	err = smtpd_check_rewrite(state);
! 	if (err != 0) {
! 	    /* XXX Reset access map side effects. */
! 	    mail_reset(state);
! 	    smtpd_chat_reply(state, "%s", err);
! 	    return (-1);
! 	}
      }
  
      /*