Well, not complete OTL, just the messaging subsystem, but even that is quite some achievement. The ring buffer inside the OtlComm unit is now implemented with a help of a lock-free stack. Lock-free buffer is now a default. If you want to compile OtlComm with the locking buffer, define the OTL_LockingBuffer symbol.
Lock-free buffer did not improve communication subsystem speed much at the moment as the limiting factor is Delphi's Variant implementation but that will change. The collective mind behind the OTL is working on some interesting messaging ideas that will be much faster but will still keep most of the Variant flexibility and simplicity.
What I can promise even now is that there will be lock-free stack and lock-free ring buffer included in the OTL as standalone reusable data structures. Sounds useful?