CHANGES
-------

The major number changes for such things as code rewrites, changes in
syntax, and/or dramatic changes in functionality. The minor number
changes for corrections, enhancements, etc. made to the code. There
is no set schedule for releases.

--TODO--


--0.11--

   +	Requires LibSnert 1.63.

   !	atExitCleanUp(): added NULL guard around cache cleanup code in
   	case its the cache was not initialised.
   
   +	access-db now supports socket-map, flat-file, and SQLite3
	lookups in addition to Berkeley DB. The SQLite3 behaviour
	can be disabled via LibSnert's ./configure script.

   !	Corrected documentation error concerning two cache-type
	options when it should have been cache-file and cache-type.

   +	Added policy=later to return a temporary error if the sender
	has not been previously cached. Previously the policy=later
	was ignored.
      	   
--0.10--

  !!	License 1.4 which provides additional details with regards to
  	possible license controls used, the possibility of "phone
  	home code" and its general contents, and related privacy
  	statement.

   +	Add check for filterOpen() got NULL socket address pointer
	passed to filterOpen() which inidicates an unsupported address
	type. The connection is simply accepted to bypass the milter.

--0.9--

   *	Never released.

--0.8--

   +	Requires LibSnert 1.61.

  !!	Complete replacement of option specification and no backwards.
	compatibility. The newer format allows for better integration
	of previously undocumented libsnert options and for the
	inclusion of future enhancements.

   !	filterClose(): remove reporting of "null workspace error",
	which can occur when a client connection is rejected before or
	by filterOpen().

   !	Minor corrections for gcc -Wall warnings.
   
   +	Added additional policy options (quarantine, later) for
	consistency with other Snert milters.

--0.7--

   !	Reverted back to libmilter's default (7210s) timeout. This
	should silence many of the reported sendmail to milter timeout
	errors and/or broken connections caused by the milter timing
	out sooner than sendmail does with the current SMTP client.
	The sendmail defaults for each SMTP command and receiving the
	message content is 1h each and so libmilter allows for 2h 10s.
	But in theory you could be DoS for between 5 and 104 hours per
	connection. If you want to change this then set in
	sendmail.mc:
	
		define(`confTO_DATABLOCK',      `30m')
		define(`confTO_COMMAND',        `5m')

--0.6--

   !	Replaced use of LIBSNERT_WITH_BERKELEY_DB by HAVE_DB_H due to
   	changes in LibSnert/1.59.
   	
   !	White listed recipients are now recorded as part of the
	address book for the sake of completeness. Previously, white
	listed recipients were assumed to already be known and
	documented in access.db such that duplicating that information
	in the address book seemed pointless. Requested by Andrew
	Lyon.

--0.5--

   !	Fix race condition in updating address book entries. Replaced
	cachePut() with cacheUpdate().
   
   !	Fixed problem with recipients resetting the sender's frequency
	counter when they reply. Reported by Andrew Lyon.
	
  !!	Changed cache format so as to count the messages from
	(previously count) and  the messages to the sender. This
	requires the cache be deleted before restarting. Or to preserve
	the address book cache, stop the milter, dump to a text file,
	append " 1" (space & digit 1) to every line, rebuild the cache
	from the text file, restart the milter.
	
  !!	If an external white listed sender sends to a local recipient,
	then the recipient is added to the address book. When those
	recipients, who are white listed local users, then reply to a
	message, an address book entry is found which triggers
	acceptance of the message and the add recipient list to
	address book code is skipped. This eventually results in an
	address book that stops growing.

   	Switched from SMFIS_ACCEPT to SMFIS_CONTINUE for addresses
	found in the address book. This means any white listed sender
	or address book entry will always have the recipient list
	added to the address book and/or counted.
  
	Reported by Andrew Lyon.

--0.4--

   +	Requires LibSnert 1.57

   +	Added support for 
   
   		milter-length-auth:auth_authen	RHS
   		milter-length-auth:
   		
   +	Added -p option to take a list of POSIX extended regular
	expressions from a file and apply it agains message headers.
	When a header matches, then the message's recipients are NOT
	recorded in the address book. This prevents auto response
	messages from white listed senders unintentionally white listing
	the message recipient who might be spammy. Commissioned by
	Andrew Lyon.
   	
--0.3--

   +	Requires LibSnert 1.56

   !	Changed install.sh.in to create /var/run/mitler/ directory
   	owned by milter:milter and change the default PID_FILE and
   	SOCKET_FILE paths. This provides better privelage/security
   	separation since the milters run as milter:milter.
   	
   !	Added X-Scanned-By header for consistency with other Snert
   	milters.

   !	Cache entries are now stored as text strings for easier
	manipulation by external tools. Previously only the key (IP
	address) was a text string, while the value was a binary
	structure. The previous cache must be discarded.
	
   !	When a recipient is first added to the address book, set the
	count to zero, (not one). The count indicates how many
	messages are received back from the recipient in the future so
	as to give an idea of activity.

--0.2--

   +	Forgot to add in the -G option parsing.
   
   !	Fixed atExitCleanUp() to sync and close the cache.

--0.1--

   +	Requires LibSnert 1.53