request.security()` — Work in Progress

A highly requested feature is now in active development. Each security context runs as its own OS process with a separate Python interpreter, so there’s no global state collision and multi-core parallelism comes for free. Processes communicate via shared memory with near-zero
overhead. The same compiled code runs in both chart and security contexts — lib.close automatically resolves to the current context’s close. Only lookahead_off is supported (by design — live trading must never see future data).

(Resolved in v6.4.0)