What's new in 5.10?
First of all, you should have a look into the file
GNUS-NEWS in the toplevel directory of the Gnus tarball,
there the most important changes are listed. Here's a
short list of the changes I find especially
- Major rewrite of the Gnus agent, Gnus agent is now
active by default.
- Many new article washing functions for dealing with
ugly formatted articles.
- Anti Spam features.
- Message-utils now included in Gnus.
- New format specifiers for summary lines, e.g., %B for
a complex trn-style thread tree.