GNU Radio release version 3.5.3 is now available for download:

http://gnuradio.org/redmine/attachments/download/320/gnuradio-3.5.3.tar.gz
http://gnuradio.org/redmine/attachments/download/321/gr-howto-write-a-block-3.5.3.tar.gz

The release notes are here:

http://gnuradio.org/redmine/projects/gnuradio/wiki/ChangeLogV3_5_3

This is the last planned 3.5 API compatible release; there may be bug
fix releases along 3.5.3.x, but no new 3.5.4 release is planned. Work
on the master branch will be focused on generating a 3.6.0 release.

Contributors this release:

Achilleas Anastasopoulos
Alexandru Csete
Ben Reynwar
Dimitri Stolnikov
Johnathan Corgan
Josh Blum
Michael Dickens
Nicholas Corgan
Philip Balister
Tom Rondeau

Enjoy!