There are currently four separately updated branches of OpenSSL: 1.0.2, 1.0.1l, 1.0.0q, and 0.9.8ze. These are all the latest versions of OpenSSL for each branch. The only versions that mIRC has been tested with are the 1.0.1l and 0.9.8ze branches, which are the most widely used branches. The new 1.0.2 branch will be looked into at some point, however only the above two branches are supported at this time.