X-Git-Url: https://git.exim.org/users/jgh/exim.git/blobdiff_plain/3367f8c2e08bf998efc84050e39d5a9fbdffb5dd..5ddc9771fa4d7861d3e5bfd6ea30c054883eaf40:/doc/doc-txt/NewStuff

diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff
index 219c3c3fb..ac1968627 100644
--- a/doc/doc-txt/NewStuff
+++ b/doc/doc-txt/NewStuff
@@ -21,7 +21,7 @@ Version 4.88
     N can be 224, 256 (default), 384, 512.
     With GnuTLS 3.5.0 or later, only.
 
- 5. Facility for named queues:  A commandline argument can specify
+ 5. Facility for named queues:  A command-line argument can specify
     the queue name for a queue operation, and an ACL modifier can set
     the queue to be used for a message.  A $queue_name variable gives
     visibility.
@@ -37,6 +37,32 @@ Version 4.88
 
  9. Expansion operator escape8bit, like escape but not touching newline etc..
 
+10. Feature macros, generated from compile options.  All start with "_HAVE_"
+    and go on with some roughly recognisable name.  Driver macros, for
+    router, transport and authentication drivers; names starting with "_DRVR_".
+    Option macros, for each configuration-file option; all start with "_OPT_".
+    Use the "-bP macros" command-line option to see what is present.
+
+11. Integer values for options can take a "G" multiplier.
+
+12. defer=pass option for the ACL control cutthrough_delivery, to reflect 4xx
+    returns from the target back to the initiator, rather than spooling the
+    message.
+
+13. New built-in constants available for tls_dhparam and default changed.
+
+14. If built with EXPERIMENTAL_QUEUEFILE, a queuefile transport, for writing
+    out copies of the message spool files for use by 3rd-party scanners.
+
+15. A new option on the smtp transport, hosts_try_fastopen.  If the system
+    supports it (on Linux it must be enabled in the kernel by the sysadmin)
+    try to use RFC 7413 "TCP Fast Open".  No data is sent on the SYN segment
+    but it permits a peer that also supports the facility to send its SMTP
+    banner immediately after the SYN,ACK segment rather then waiting for
+    another ACK - so saving up to one roundtrip time.  Because it requires
+    previous communication with the peer (we save a cookie from it) this
+    will only become active on frequently-contacted destinations.
+
 
 Version 4.87
 ------------
@@ -64,7 +90,7 @@ Version 4.87
     synonym of the latter).  Add support in base64 for certificates.
 
  8. New main configuration option "bounce_return_linesize_limit" to
-    avoid oversize bodies in bounces. The dafault value matches RFC
+    avoid oversize bodies in bounces. The default value matches RFC
     limits.
 
  9. New $initial_cwd expansion variable.
@@ -84,7 +110,7 @@ Version 4.86
 
  5. Assorted options on malware= and spam= scanners.
 
- 6. A commandline option to write a comment into the logfile.
+ 6. A command-line option to write a comment into the logfile.
 
  7. If built with EXPERIMENTAL_SOCKS feature enabled, the smtp transport can
     be configured to make connections via socks5 proxies.
@@ -112,7 +138,7 @@ Version 4.85
 ------------
 
  1. If built with EXPERIMENTAL_DANE feature enabled, Exim will follow the
-    DANE smtp draft to assess a secure chain of trust of the certificate
+    DANE SMTP draft to assess a secure chain of trust of the certificate
     used to establish the TLS connection based on a TLSA record in the
     domain of the sender.
 
@@ -308,7 +334,7 @@ Version 4.82
 16. New authenticated_sender logging option, adding to log field "A".
 
 17. New expansion variables $router_name and $transport_name.  Useful
-    particularly for debug_print as -bt commandline option does not
+    particularly for debug_print as -bt command-line option does not
     require privilege whereas -d does.
 
 18. If built with EXPERIMENTAL_PRDR, per-recipient data responses per a