We just put out OpenLiteSpeed 1.3.3. It should fix all outstanding bugs (we believe). This means we are very close to designating 1.3.x stable — giving stable users access to page caching and gzip compression.
Thanks for your help finding bugs so far. Please let us know if you find anything new.
Also, we plan to release 1.4 with some exciting features very soon...
Cheers,
Michael