PyneCore v6.9.0 released — Pine int is now a static type over a double-only runtime,…

September 5, 2026

Features

Every int-typed value travels as an integral float; na(int) is a plain nan, truncation happens at the consuming slot, storage keeps the value (array.new_int(1, 7 / 4) holds 1.75)
Static Pine type inference stamps the AST; overload calls are pinned statically so 14 / 8 still picks the int implementation (PYNE_NO_TYPE_PIN=1 disables)
Modules publish a type interface; cached bytecode is dependency-aware; imported user libraries are typed from their signatures
script.indicator/strategy/library(..., na_bool=True) keeps Pine v4/v5’s three-state bool; default is v6’s two-state bool
Opt-in PYNE_EDGE_STRICT=1 gate rejects constructs outside the Pyne Edge subset with one diagnostic per typing failure

Fixes

math.round(number, precision) follows the measured TradingView rule (half away from zero, exact tie on the double product, fractional precision used continuously)
Rolling ta.percentile_nearest_rank / ta.percentile_linear_interpolation follow TradingView’s na rank order; ta.median returns the mean of the two middles
list/str/tuple indexes and range() bounds written with a Pine int are truncated by the loader; lst[int(n)] works
strategy.closedtrades/opentrades accept an na trade number; box/label/line coordinates normalize at the library boundary
Broker engine: no halt on read outages, teardown joins the event stream before closing resources, stale partial legs retired, venue-driven cancels honoured, run_tag persisted on envelope anchors

Performance

Series subscripts take a float offset on a single fast path (a 60% for-loop regression measured during development is gone)