PyneCore v6.10.2 released — load-time inlining and type erasure, a Decimal-free number…

September 20, 2026

Fixes

Security children now start on forkserver (or spawn) instead of the platform default — a live child was forked from a multi-threaded parent and could inherit locks nothing would release
The orphan watchdog waits on the runner’s process sentinel, so a hard-killed runner is noticed
Each security child now receives a snapshot of the runner’s PYNE* environment, so per-run switches reach children on a second run in one interpreter
table.new and table.set_position evict the table already at the target position, as TradingView does — an unbounded registry made a per-bar table.new cost grow quadratically
The drawing snapshot rolls back table cells, so a discarded calc_on_order_fills or live re-execution no longer leaves table edits behind
The order sync engine defers exit dispatches and amends while the parent entry’s disposition is unresolved
KeyboardInterrupt propagates after streaming teardown, so an interrupted live run is not reported as completed
OHLCV durability: a failed header fsync rolls back to the last published header, and sidecar rows are fsynced before every publication
math.sqrt guards negative input instead of catching ValueError

Performance

Trivial stateless builtins (math.abs, sqrt, pow, exp, log, the trigonometric functions, two/three-operand max/min, array.get, array.size, …) are inlined into @pyne call sites as a single expression, bit-identically
typing.cast calls and if TYPE_CHECKING: blocks are erased at load time, including in PyneCore’s own hot-path modules
str.tostring 2.2 us -> 0.7-0.9 us and str.format 2.3 us -> 0.9 us on the common paths, with the old implementation kept as the fallback and semantic reference
All matrix.*, the cast_* helpers, the drawing and ticker constructors, the context-free request functions and more are routed as plain calls instead of paying an anchor slot and a per-iteration rollback
The drawing snapshot restores only changed objects; loop-site builtin restores reuse the snapshot’s machine list while no new state vector exists
strategy.exit keeps a resting leg in place when the call would rebuild it unchanged, with trade output unchanged
A bulk OHLCV append publishes once instead of once per record — a three-context request.security script over a 23 272-bar 60m feed went from 58.3 s to 1.95 s on Linux, output byte-identical