-Format spec "%&user-date;" is added into
-`gnus-summary-line-format-alist'. Also, user defined extended format
-specs are supported. The extended format specs look like "%u&foo;",
-which invokes function `gnus-user-format-function-foo'. Because "&" is
-used as the escape character, old user defined format "%u&" is no
-longer supported.
-
-** `/ *' (gnus-summary-limit-include-cached) is rewritten.
-
-It was aliased to `Y c' (gnus-summary-insert-cached-articles). The new
-function filters out other articles.
-
-** Some limiting commands accept a C-u prefix to negate the match.
-
-If C-u is used on subject, author or extra headers, i.e., `/ s', `/
-a', and `/ x' (gnus-summary-limit-to-{subject,author,extra})
-respectively, the result will be to display all articles that do not
-match the expression.
+It needs an external S/MIME and OpenPGP implementation, but no
+additional Lisp libraries. This add several menu items to the
+Attachments menu, and `C-c RET' key bindings, when composing messages.
+This also obsoletes `gnus-article-hide-pgp-hook'.