From OpenLiteSpeed Wiki
OpenLiteSpeed 1.0.4 (Legacy - 2013-6-25)
OpenLiteSpeed 1.2.11 (Current stable version. Supports SPDY/3 and 3.1, WebSocket proxies, OCSP stapling, and protection against the Shellshock Bash vulnerability.)
OpenLiteSpeed 1.3.5 (Features page caching module, LSIAPI for third-party module integration, and protection against the Shellshock Bash vulnerability.)
OpenLiteSpeed 1.4.1 (Beta. Features Lua and shared memory support, RCS integration, and all configurations in plain text.)
You can also download OpenLiteSpeed for CentOS from our repositories.