CHUNKING: pipeline data right after the BDAT command

[users/jgh/exim.git] / doc / doc-txt / ChangeLog

diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index 156a89f168d4baefa673622d9b73cbd282f1d563..bebc9e70f51fc0ea92b6efb04f919b79aa98d899 100644 (file)
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -5,8 +5,60 @@ affect Exim's operation, with an unchanged configuration file.  For new
 options, and new features, see the NewStuff file next to this ChangeLog.
 
 
 options, and new features, see the NewStuff file next to this ChangeLog.
 
 

+Exim version 4.90
+-----------------
+
+JH/01 Rework error string handling in TLS interface so that the caller in
+      more cases is responsible for logging.  This permits library-sourced
+      string to be attached to addresses during delivery, and collapses
+      pairs of long lines into single ones.
+
+PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
+      during configuration.  Wildcards are allowed and expanded.
+
+JH/02 Rework error string handling in DKIM to pass more info back to callers.
+      This permits better logging.
+
+JH/03 Rework the transport continued-connection mechanism: when TLS is active,
+      do not close it down and have the child transport start it up again on
+      the passed-on TCP connection.  Instead, proxy the child (and any
+      subsequent ones) for TLS via a unix-domain socket channel.  Logging is
+      affected: the continued delivery log lines do not have any DNSSEC, TLS
+      Certificate or OCSP information.  TLS cipher information is still logged.
+
+JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
+      identical IP addresses on different listening ports.  Will also affect
+      "exiwhat" output.
+
+PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
+      add noisy ifdef guards to special-case this sillyness.
+      Patch from Bernd Kuhls.
+
+JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
+      than 255 are no longer allowed.
+
+JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
+      Disable the session-cache too, which might reduce our load.  Since we
+      currrectly use a new context for every connection, both as server and
+      client, there is no benefit for these.
+      GnuTLS appears to not support tickets server-side by default (we don't
+      call gnutls_session_ticket_enable_server()) but client side is enabled
+      by default on recent versions (3.1.3 +) unless the PFS priority string
+      is used (3.2.4 +).
+
+PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
+      <https://reproducible-builds.org/specs/source-date-epoch/>.
+
+JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
+      the check for any unsuccessful recipients did not notice the limit, and
+      erroneously found still-pending ones.
+
+JH/08 Pipeline CHUNKING command and data together, on kernels that support
+      MSG_MORE.  Only in-clear (not on TLS connections).
+
+

 Exim version 4.89
 Exim version 4.89

--------------------
+-----------------

 
 JH/01 Bug 1922: Support IDNA2008.  This has slightly different conversion rules
       than -2003 did; needs libidn2 in addition to libidn.
 
 JH/01 Bug 1922: Support IDNA2008.  This has slightly different conversion rules
       than -2003 did; needs libidn2 in addition to libidn.


@@ -45,6 +97,74 @@ JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING.  Any BDAT commands after
       processing; with most chunk sizes in use this resulted in an incorrect
       body hash calculated value.
 
       processing; with most chunk sizes in use this resulted in an incorrect
       body hash calculated value.
 

+JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
+      DKIM signature block, for verification.  Although advised against by
+      standards it is specifically not ruled illegal.
+
+JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
+
+JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
+      missing a body hash (the bh= tag).
+
+JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
+      It seems that HAProxy sends the Proxy Protocol information in clear and
+      only then does a TLS startup, so do the same.
+
+JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
+      TCP connections (such as for Spamd) unless the daemon successfully set
+      Fast Open mode on its listening sockets.  This fixes breakage seen on
+      too-old kernels or those not configured for Fast Open, at the cost of
+      requiring both directions being enabled for TFO, and TFO never being used
+      by non-daemon-related Exim processes.
+
+JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
+      endings, at least on the first header line.  Try to canonify any that get
+      past that check, despite the cost.
+
+JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
+      now limited to an arbitrary five deep, while parsing addresses with the
+      strip_excess_angle_brackets option enabled.
+
+PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
+      instead leave the unprompted TLS handshake in socket buffer for the
+      TLS library to consume.
+
+PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
+
+PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
+
+JH/16 Drop variables when they go out of scope.  Memory management drops a whole
+      region in one operation, for speed, and this leaves assigned pointers
+      dangling.  Add checks run only under the testsuite which checks all
+      variables at a store-reset and panics on a dangling pointer; add code
+      explicitly nulling out all the variables discovered.  Fixes one known
+      bug: a transport crash, where a dangling pointer for $sending_ip_address
+      originally assigned in a verify callout, is re-used.
+
+PP/06 Drop '.' from @INC in various Perl scripts.
+
+PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
+
+PP/08 Reduce a number of compilation warnings under clang; building with
+      CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
+      should be warning-free.
+
+JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
+
+HS/01 Fix portability problems introduced by PP/08 for platforms where
+      realloc(NULL) is not equivalent to malloc() [SunOS et al].
+
+HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
+      chunk. This allows us to accept broken chunked messages. We need a more
+      general solution here.
+
+PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
+      already-broken messages in the queue.
+
+JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce }  $value.
+
+JH/19 Fix reference counting bug in routing-generated-address tracking.
+

 
 Exim version 4.88
 -----------------
 
 Exim version 4.88
 -----------------