RELNOTES		RELNOTES
			/* ========================================================================
			* Copyright 1988-2006 University of Washington
			*
			* Licensed under the Apache License, Version 2.0 (the "License");
			* you may not use this file except in compliance with the License.
			* You may obtain a copy of the License at
			*
			* http://www.apache.org/licenses/LICENSE-2.0
			*
			*
			* ========================================================================
			*/
			Updated: 30 August 2006
			imap-2006 is a major release. Programs written for imap-2004g should
			build with this version with minor or no modification. imap-2005 was not
			released except as development snapshots.
			imap-2006 contains major extensions to its Unicode support. Searching and
			sorting are now done with strings canonicalized to titlecase and decomposed
			form. Among other things, this means that Latin letters with diacriticals
			will now sort with the basic Latin letter, and case-independent searching o
			f
			such letters (e.g., German umlauts) now works. Previously, sorting was don
			e
			strictly by Unicode codepoint, and case-independence only worked with ASCII
			.
			imapd now supports the UIDPLUS extension for mailboxes in unix, mmdf, mbx,
			mx,
			and mix formats. UID EXPUNGE is fully implemented. Note that UIDPLUS is n
			ot
			supported in the little-used drivers (mh, mtx, tenex) in which meaningful
			APPENDUID/COPYUID data can not be returned. Refer to bugs.txt for more
			details.
			The new mix format is a dual-use mailbox format designed for performance an
			d
			reliability with large mailboxes. mix is documented in file mixfmt.txt.
			SSL/TLS certificate validation on UNIX now checks the alternative names in
			the
			certificate if the CN does not match.
			The new /tls-sslv23 flag in a mailbox name causes a TLS session to use the
			(incorrect) SSLv23 client method instead of the TLSv1 client method. Some
			broken servers use the SSLv23 server method, and this flag works around tha
			t
			problem. WARNING: use of this flag will cause TLS negotiation to fail with
			a server which uses the proper TLSv1 server method. Additionally, there ar
			e
			known security risks in SSLv2; so users should be suspicious if this switch
			suddenly becomes necesary.
			The silly mailbox flag combination /ssl/tls is now rejected as an invalid
			remote specification. Previous versions tried to negotiate TLS over an SSL
			session; even if the server permitted such a thing it couldn't work.
			The memory management of several drivers has been redesigned to consume les
			s
			memory and hopefully be faster.
			The private.data member of the MESSAGECACHE (elt) has been replaced with
			a union that contains private.spare.data and private.spare.ptr, the latter
			being a pointer.
			A new FT_RETURNSTRINGSTRUCT flag has been added for mail_fetch_body() and
			mail_fetch_text() calls. If this flag is set, *and* if the function return
			s
			NIL, then the requested string data is available on a stringstruct on
			stream->private.string. This is a special hack for the IMAP and POP server
			s
			and is subject to incompatible change. The result is a major performance
			improvement in the servers with the mbx driver, particularly with large
			messages.
	Updated: 15 September 2005		Updated: 15 September 2005
	imap-2004g is a maintenance release, and consists solely of a bugfix to		imap-2004g is a maintenance release, and consists solely of a bugfix to
	quoted string handling in the mailbox name parsing routine.		quoted string handling in the mailbox name parsing routine.
	Updated: 15 August 2005		Updated: 15 August 2005
	imap-2004f is a maintenance release, and consists solely of a bugfix to		imap-2004f is a maintenance release, and consists solely of a bugfix to
	the TCP code.		the TCP code.
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