The keys used are:
!: modified feature, -: deleted feature, +: new feature
+1.11.0 (2018-11-24):
+
+ + inotify is use for local mailbox monitoring on Linux. Configuration flag
+ --disable-filemonitor turns this off.
+ + OAUTHBEARER support for IMAP, SMTP and POP via
+ $imap_oauth_refresh_command, $smtp_oauth_refresh_command, and
+ $pop_oauth_refresh_command.
+ ! $pgp_timeout and $smime_timeout support 32-bit numbers.
+ + <check-stats> manually updates mailbox statistics, the same way
+ $mail_check_stats does when set.
+ ! Thread limited views, e.g. ~(pattern), now show new mail as it arrives.
+ ! Command line argument -z and -Z options also work for IMAP mailboxes.
+ + $imap_condstore and $imap_qresync enable IMAP CONDSTORE and QRESYNC
+ support, respectively. QRESYNC should provide much faster mailbox opening.
+ ! $abort_noattach skips quoted lines (as defined by $quote_regexp and
+ $smileys).
+ ! Initial IMAP header downloading can be aborted with ctrl-c.
+ + <compose-to-sender> composes a message to the sender of the selected
+ message, in the index or attachment menu.
+ ! Address book queries ($query_format) now support multibyte characters.
+ + Finnish translation.
+ ! pgpring has been renamed to mutt_pgpring.
+ ! Certificate prompts show sha-256 instead of md5 fingerprints.
+ ! Non-threaded $sort_aux "reverse-" settings now work properly.
+ + The manual can be generated and installed in GNU Info format.
+ + index-format-hook and the new %@name@ expando for $index_format enable
+ dynamic index formats using pattern matching against the current message.
+ This can be used, for example, for date format based on the age of
+ the message.
+ ! Relative date matching allows hour, minute, and second units: HMS.
+
1.10.1 (2018-07-16):
! Bug fix release.