It turned out that the issue with PolarSSL 1.3 in the rc0 release was because how PolarSSL 1.3 was compiled by Hiawatha, which is a bit different that with PolarSSL 1.2. This has been fixed in the rc1 release. I've also included keep-alive connections for the reverse proxy in Hiawatha.
Please, test this 9.3-rc1 release and inform me about any issues. If no issues are reported before next sunday, I will then release 9.3
Update (15 oct 2013):
PolarSSL 1.3.1 has been released. To use this new SSL library, go to the directory polarssl inside the source package and run './upgrade 1.3.1'
Second update (19 oct 2013):
There still is a bug in PolarSSL, so no Hiawatha release this weekend.