Release Notes: Client certificate authentication was enabled in the GPL release. Certificate Revocation List (CRL) support was added. Assembly language optimizations were made for x86, x86_64, ARM, and MIPS. Countermeasures were provided for the Lucky Thirteen CBC padding attack. Maximum Fragment Length extension support was added. There were additional minor enhancements and fixes.
Release Notes: A security exploit involving SSL re-negotiation has been discovered. In this release, MatrixSSL disables re-negotiation for server side SSL, protecting secure servers from attack.