+It is enabled by default (see `password-cache'), with a short timeout of
+16 seconds (see `password-cache-expiry'). If PGG is used as the PGP
+back end, the PGP passphrase is managed by this mechanism. Passwords
+for ManageSieve connections are managed by this mechanism, after
+querying the user about whether to do so.
+
+\f
+* Changes in summary and article mode
+
+** International host names (IDNA) can now be decoded inside article bodies
+using `W i' (`gnus-summary-idna-message'). This requires that GNU Libidn
+(`http://www.gnu.org/software/libidn/') has been installed.
+
+** Gnus now displays DNS master files sent as text/dns using dns-mode.
+
+** Gnus supports new limiting commands in the Summary buffer: `/ r'
+(`gnus-summary-limit-to-replied') and `/ R'
+(`gnus-summary-limit-to-recipient'). *Note Limiting::.
+
+** Gnus supports a new sort command in the Summary buffer: `C-c C-s C-t'
+(`gnus-summary-sort-by-recipient'). *Note Summary Sorting::.
+
+** S/MIME now features LDAP user certificate searches. You need to
+configure the server in `smime-ldap-host-list'.
+
+** URLs inside OpenPGP headers are retrieved and imported to your PGP key
+ring when you click on them.
+
+** Picons can be displayed right from the textual address, see
+`gnus-picon-style'. *Note Picons::.