X-Git-Url: https://git.exim.org/users/jgh/exim.git/blobdiff_plain/e3b1f624c34b1345747184f4aa7bb9aca375600b..142622b3f385bfcc36eae176763a7225c2e49b3c:/doc/doc-txt/ChangeLog

diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index aeb67ecfa..156413fcd 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -1,5 +1,8 @@
 Change log file for Exim from version 4.21
 -------------------------------------------
+This document describes *changes* to previous versions, that might
+affect Exim's operation, with an unchanged configuration file.  For new
+options, and new features, see the NewStuff file next to this ChangeLog.
 
 Exim version 4.88
 -----------------
@@ -24,7 +27,7 @@ JH/04 Bug 1810: make continued-use of an open smtp transport connection
       non-noisy when a race steals the message being considered.
 
 JH/05 If main configuration option tls_certificate is unset, generate a
-      selfsigned certificate for inbound TLS connections.
+      self-signed certificate for inbound TLS connections.
 
 JH/06 Bug 165: hide more cases of password exposure - this time in expansions
       in rewrites and routers.
@@ -88,6 +91,57 @@ JH/23 Bug 1874: fix continued use of a connection for further deliveries.
       (has no matching addresses), we lost track of needing to mark it
       deferred.  As a result mail would be lost.
 
+JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
+
+JH/25 Decoding ACL controls is now done using a binary search; the source code
+      takes up less space and should be simpler to maintain.  Merge the ACL
+      condition decode tables also, with similar effect.
+
+JH/26 Fix problem with one_time used on a redirect router which returned the
+      parent address unchanged.  A retry would see the parent address marked as
+      delivered, so not attempt the (identical) child.  As a result mail would
+      be lost.
+
+JH/27 Fix a possible security hole, wherein a process operating with the Exim
+      UID can gain a root shell.  Credit to http://www.halfdog.net/ for
+      discovery and writeup.  Ubuntu bug 1580454; no bug raised against Exim
+      itself :(
+
+JH/28 Enable {spool,log} filesystem space and inode checks as default.
+      Main config options check_{log,spool}_{inodes,space} are now
+      100 inodes, 10MB unless set otherwise in the configuration.
+
+JH/29 Fix the connection_reject log selector to apply to the connect ACL.
+      Previously it only applied to the main-section connection policy
+      options.
+
+JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
+
+PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
+      by me.  Added RFC7919 DH primes as an alternative.
+
+PP/02 Unbreak build via pkg-config with new hash support when crypto headers
+      are not in the system include path.
+
+JH/31 Fix longstanding bug with aborted TLS server connection handling.  Under
+      GnuTLS, when a session startup failed (eg because the client disconnected)
+      Exim did stdio operations after fclose.  This was exposed by a recent
+      change which nulled out the file handle after the fclose.
+
+JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
+      signed directly by the cert-signing cert, rather than an intermediate
+      OCSP-signing cert.  This is the model used by LetsEncrypt.
+
+JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
+
+HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
+      an incoming connection.
+
+HS/02 Bug 1802: Do not half-close the connection after sending a request
+      to rspamd.
+
+HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
+      fallback to "prime256v1".
 
 Exim version 4.87
 -----------------