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joaquinbejar merged 1 commit into from
Apr 19, 2026
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release(0.16.2): bump + CHANGELOG for #387, #388 #391

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33 changes: 32 additions & 1 deletion CHANGELOG.md
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Expand Up @@ -7,6 +7,38 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

## [Unreleased]

## [0.16.2] - 2026-04-19

Hot-fix for two panic / I/O bugs caught while running every example
binary under `examples/`.

### Fixed

- Strategy P&L / break-even arithmetic crossed the `Positive`
boundary without a guard and panicked mid-optimizer-scan
(`Positive invariant broken in add_decimal / sub`) in:
- `CallButterfly::update_break_even_points`,
- `CallButterfly::get_profit_area`,
- `LongButterflySpread::update_break_even_points`,
- `BullPutSpread::get_max_loss`.
All four sites now lower to `Decimal`, then rewrap via
`Positive::new_decimal(..)` — invalid candidates are dropped
cleanly or surfaced as typed `StrategyError` instead of
panicking. Unblocks `strategy_call_butterfly_best_{area,ratio}`,
`strategy_long_butterfly_spread_best_{area,ratio}`,
`strategy_call_butterfly_delta`, and
`strategy_bull_put_spread_extended_delta` examples. (#387)
- `examples_chain::async_chain_ops` was passing a filename where a
directory was expected and failing with `ENOENT`; it now writes
under `std::env::temp_dir()/optionstratlib-async-chain-ops` and
creates the directory up front. (#388)
- `examples_chain::creator` pointed at a Germany-40 JSON file that
was never committed; now reads the one that ships in
`examples/Chains/`. (#388)

[Unreleased]: https://github.com/joaquinbejar/OptionStratLib/compare/v0.16.2...HEAD
[0.16.2]: https://github.com/joaquinbejar/OptionStratLib/releases/tag/v0.16.2

## [0.16.1] - 2026-04-19

Hot-fix for CI flakiness introduced by sub-day `ExpirationDate`
Expand All @@ -27,7 +59,6 @@ arithmetic in test fixtures, plus a doc-link warning.
`MAX_ITERATIONS_IV` — the doc just names the crate-private
counterpart in prose, so `cargo doc` emits zero warnings again.

[Unreleased]: https://github.com/joaquinbejar/OptionStratLib/compare/v0.16.1...HEAD
[0.16.1]: https://github.com/joaquinbejar/OptionStratLib/releases/tag/v0.16.1

## [0.16.0] - 2026-04-19
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2 changes: 1 addition & 1 deletion Cargo.toml
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@@ -1,6 +1,6 @@
[package]
name = "optionstratlib"
version = "0.16.1"
version = "0.16.2"
edition = "2024"
authors = ["Joaquin Bejar <jb@taunais.com>"]
description = "OptionStratLib is a comprehensive Rust library for options trading and strategy development across multiple asset classes."
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