Hello again,

sorry for my previous answer, I mistakenly interpreted your question as if you were asking for an iOS 64 bit version (a hot topic lately). Anyway, the correct answer is still Yes: the latest Lightstreamer distribution contains also an OS X version of the client library which is both 32 and 64 bit. You can find it under DOCS-SDKs/sdk_client_os_x.

Please be aware the iOS and OS X clients are NOT included in the Moderato version.
Best regards,

Gianluca