Release 0.52 is current.

Previous releases can be found in the releases directory. If you want 
to link to a tarball please link to the file in that directory so
that links don't break with new releases.

The Dropbear homepage is http://matt.ucc.asn.au/dropbear/dropbear.html

Releases are signed with my pgp key.

Note: Export of cryptographic software is subject to export controls.
Make sure that you aren't breaching either the laws of Australia or other
countries in downloading this software. 
See http://rechten.uvt.nl/koops/cryptolaw/ for some good research.