Version 2.2.2 - 23 January 2010
-------------------------------
- Bug fix; a couple of errors in the extending examples file.


Version 2.2.1 - 20 January 2010
-------------------------------
- A global option for the IDLE refreshing interval was added.
- Bug fix; more detailed reporting when SSL socket errors occur.


Version 2.2 - 30 December 2009
------------------------------
- Support for combining searching methods in multiple mailboxes at the same or
  different accounts and processing of the results in bulk.
- Support for meta-searching that allows searching on the previous searching
  results.
- The processing and fetching methods were enhanced to reflect the new changes
  and the documentation was updated.
- Global options for the message cache and the certificates were added.
- Bug fix; questions for certificates are not asked while in daemon mode, but
  instead an error is printed.

* A different format is used for the returned structures of the searching
  methods, due to the introduction of multiple mailbox searching and
  meta-searching, and thus any configuration files that rely on them should be
  updated.  Consequently, the processing and fetching methods have been also
  enhanced and the relevant documentation updated, and while these changes are
  backwards compatible, an update of the configuration file is still
  recommended.


Version 2.1.2 - 3 December 2009
-------------------------------
- Bug fix; cache for message parts didn't work correctly.
- Bug fix; documentation error.


Version 2.1.1 - 24 November 2009
--------------------------------
- Bug fix; global option timeout and enter_idle() didn't play well together.


Version 2.1 - 23 November 2009
------------------------------
- Support for the IMAP IDLE extension (RFC 2177) through the enter_idle()
  method.
- Support for fetching of a message's body structure through the
  fetch_structure() method, and of a message's specific body part through the
  fetch_parts() method.
- Addition of a global option that controls the character set used for all the
  searching methods.
- Bug fix; fetching of non-existent messages.
- Bug fix; no trailing end-of-line characters in the results of fetch_fields().


Version 2.0.11 - 20 September 2009
----------------------------------
- Bug fix; fetching of messages with empty body.
- Workaround for problematic IMAP server sending non-compliant mailbox status
  information.


Version 2.0.10 - 16 February 2008
---------------------------------
- Bug fix; failed a great number (tens of thousands) of commands were exchanged
  with an IMAP server
- Bug fix; failed to fetch the body of some messages in some extremely rare
  occasions
- Bug fix; the description for the contain_header() method was clarified


Version 2.0.9 - 26 December 2007
--------------------------------
- Bug fix; the match_*() methods failed to match messages.
- Bug fix; the match_*() methods failed with an error when no messages matched.
- Bug fix; note added in the documentation about the need to use double
  backslashes inside of regular expression patterns.


Version 2.0.8 - 23 December 2007
--------------------------------
- Bug fix; on some platforms it is necessary to link against the math library.


Version 2.0.7 - 22 December 2007
--------------------------------
- Bug fix; the match_*() methods failed with an error message.


Version 2.0.6 - 7 October 2007
------------------------------
- Bug fix; the search query that was sent with the select_all() method had an
  incorrect format and this caused an error in some mail servers.


Version 2.0.5 - 4 October 2007
------------------------------
- Bug fix; an error in the sample extensions file.
- Bug fix; typo errors in the manual page.
- The documentation was updated with details and examples on how to access
  mailboxes inside folders.
- Examples were added on how to define composite filters that include multiple
  searching rules.


Version 2.0.4 - 27 September 2007
---------------------------------
- Bug fix; the send_query() method didn't return the special form of table that
  the rest of the searching methods did.
- An additional searching method has been added to search for keyword flags
  set.
- A new variable that was added to the Makefile makes it possible to set an
  alternative environment for the installation path.


Version 2.0.3 - 27 July 2007
----------------------------
- Bug fix; part of the program's functionality didn't seem to work at all (did
  nothing), due to problem when providing the results from searching methods to
  processing methods


Version 2.0.2 - 30 June 2007
----------------------------
- Bug fix; message cache problem due to non-use of message UIDs


Version 2.0.1 - 29 June 2007
----------------------------
- Bug fix; character set problem with 1.x configuration files
- Bug fix; typo errors in the documentation


Version 2.0 - 27 June 2007
--------------------------
- New, more powerful, feature rich and yet simpler configuration file.
- Easier object oriented view of accounts and mailboxes.
- Simpler approach to filters, with infix logical or/and/not operators.
- No more need to mess with server search queries.
- More and simpler functions instead of few and complicated ones.
- More feature complete interface that can now even manipulate mailboxes.
- Regular expressions integrated into the searching interface.
- Effective caching subsystem when fetching message parts.
- Can still read old version 1.x configuration files for compatibility.
- Lua 5.1 and the PCRE library are now requirements.

* The configuration file format has changed.  The new format is not backwards
  compatible, and thus it should not be mixed with the old format.
  Nevertheless, configuration files that employ the old, and now deprecated,
  format can still be read and executed as before.


Version 1.3 - 13 February 2007
------------------------------
- Perl Compatible Regular Expression (PCRE) support.
- Compile against Lua 5.1 by default.
- Bug fix; program fault in some cases and when namespace prefix was empty
- Bug fix; program fault on some platforms when running in verbose mode


Version 1.2.2 - 1 August 2006
-----------------------------
- Bug fix; a mix up of connections could happen in certain circumstances, when
  a hostname and/or username was a prefix of another hostname and/or username
  respectively, or when the same hostname and username was used to connect to
  a different port.
- Bug fix; the list()/lsub() functions parsed mailboxes/folders whose names
  contained spaces incorrectly.
- The list() function now does not return the folder itself, when listing
  mailboxes inside a specific folder.
- It is now possible to define new user keywords for messages inside a mailbox,
  apart from the standard system flags.


Version 1.2.1 - 9 March 2006
----------------------------
- Buf fix; program fault when using the fetch*() family of functions.


Version 1.2 - 2 March 2006
--------------------------
- IPv6 support.
- Lua 5.1 compatibility.
- Bug fix; handle messages containing binary data.
- Bug fix; problems with CPU utilisation when the inactivity timeout timer was
  set.


Version 1.1.1 - 11 November 2005
--------------------------------
- Bug fix; minor memory leak.
- Bug fix; on some systems, failure resulted while disconnecting from all the
  servers, during the shutdown phase just before exiting.


Version 1.1 - 24 August 2005
----------------------------
- Addition of the list() and lsub() commands, that make it possible to get a
  list of the available mailboxes or only of those that are subscribed.
  Implementation of the IMAP LIST/LSUB commands, with additional support for
  the IMAP CHILDREN (RFC 3348) and IMAP NAMESPACE (RFC 2342) extensions.
- New program option to execute a string from the command line, without loading
  a configuration file.
- New program option to enter interactive mode after executing the
  configuration file or the command line.
- Servers that reply with multiple SEARCH responses are taken into
  consideration.
- Bug fix; failure to parse the response to fetchfast() that some mail servers
  sent.
- Bug fix; in some systems and when in debug mode, an empty namespace caused
  program fault.


Version 1.0.1 - 22 August 2004
------------------------------
- Bug fix; in some cases processing of messages with an empty body caused
  failure.
- Bug fix; an invalid namespace prefix was inserted in mailbox names of some
  mail servers.
- Unique message identifiers are now used by default, instead of message
  sequence numbers, when accessing messages in a mailbox.
- Sequence set ranges are generated and sent to the mail server instead of
  enumerations, when this is possible.
- The client now limits the length of the command lines it generates to
  approximately 1000 octets, by splitting the request into multiple commands.
- Systems that have no limit on the number of bytes in a pathname are now
  considered.
- Debug files are now written in $HOME/.imapfilter/ instead of /tmp/.


Version 1.0 - 23 May 2004
-------------------------
- Initial release of IMAPFilter with extension language Lua.
