Changelog summary paragraphs

Author: sampsyo

docs/changelog.rst

@@ -4,6 +4,16 @@ Changelog
 1.3.11 (in development)
 -----------------------
 
+In this release, we refactored the logging system to be more flexible and more
+useful. There are more granular levels of verbosity, the output from plugins
+should be more consistent, and several kinds of logging bugs should be
+prevented in the future.
+
+There are also two new plugins: one for filtering the files you import and an
+evolved plugin for using album art as directory thumbnails in file managers.
+There's a new source for album art, and the importer now records the source of
+match data. This is a particularly huge release: there's lots more below.
+
 There's one big change with this release: **Python 2.6 is no longer
 supported**. You'll need Python 2.7. Please trust us when we say this let us
 remove a surprising number of ugly hacks throughout the code.