🧮 LibItoFin v0.44.0

0.44.0 (2026-10-24)

🎁 Features

• api: add coupon BPS and own-NPV ATM helpers (30a8fe9)
• api: add European cash-or-nothing option factories (db38e08)
• api: add explicit Hull-White callable-bond OAS bindings (a85e63f)
• api: add immutable BlackDeltaCalculator C and Go APIs (a8e9fab)
• asset-swap: complete Python AssetSwap inspectors and cache controls (ab8d0e1)
• bindings: add BlackCalculator Go and native bindings (69f094f)
• bindings: add C ABI and Go bond-forward APIs (780b585)
• bond-forward: add native forward bindings and strict C tests (c5c2ae2)
• bond-forward: add Python bindings regression tests and docs (54eaf97)
• bond: add flat-yield scalar risk queries for C and Go (87950a9)
• callable-black: add Go/C Black engine and implied volatility (c1494e3)
• callable-risk: add C ABI and Go effective-risk bindings (bc2d476)
• callable-tree: add Hull-White callable tree pricing (cedd37c)
• crates: add Bond::unpriced_snapshot ownership bridge (6cd1bf8)
• crates: add twenty source-pinned currency presets and C selectors (ceebaf4)
• ffi: add callable bond construction and callability bindings (f997f91)
• ffi: add callable-bond OAS bindings and native state tests (9931215)
• float-float: add signed measures, spreads, and lifecycle bindings (3571eae)
• g2: add C ABI and Go bare-factor G2 process API (4684966)
• g2: add Python regression tests and document bare-factor bindings (c5a59b7)
• go: add AssetSwap session facade and coverage (916d4a5)
• go: add CurrencyConfig, NewCurrency, and field accessors (2b62e33)
• go: add effective-risk bindings and native risk fixture coverage (56c0468)
• go: add float-float bindings and examples (2b0820d)
• go: add FxForward facade over the reviewed C ABI (825b5ed)
• go: add native bond-forward bindings, fixture, tests, and example (1e52803)
• go: add native G2 bindings and fixtures (81abe57)
• go: add twenty session currency factories with regression coverage (b3d062e)
• gsr: add standalone constant-grid C ABI and Go interface (160bd67)
• hull-white: add typed Go forward lifecycle and scalar queries (988fe24)
• libitofin-ffi: add BlackCalculator C bindings (a85e45a)
• libitofin-ffi: add BlackCalculator scalar Greek bindings (c9dd37b)
• libitofin-ffi: add bounded par asset swap C ABI (93ac1f2)
• libitofin-ffi: add bounded snapshot-spot FxForward C ABI (b33fc90)
• libitofin-ffi: add C ABI float-float swap bindings (6f8a494)
• libitofin-ffi: add C Hull-White forward process bindings (ae84fd6)
• libitofin-ffi: add Xccy C ABI constructors and scalar queries (46e84f6)
• mf-state: add standalone immutable C ABI and Go interface (51de320)
• mf-state: add standalone Python process bindings (9637a09)
• processes: add unsendable HullWhite forward process (4bad665)
• python: add Black callable pricing and pure implied volatility (695dc92)
• python: add BlackCalculator API and coverage map (bd1efa5)
• python: add bond-forward bindings and ownership preparation (58a9ca0)
• python: add bounded AssetSwap pricing foundation (fd9e736)
• python: add callable bond constructors and callability records (7797e3b)
• python: add callable effective-risk bindings (0589b1d)
• python: add callable-bond OAS bindings (21ddf95)
• python: add float-float constructor, engine, and NPV bindings (db103f5)
• python: add float-float swap bindings and coverage (aaac857)
• python: add G2 process bindings (1dcf7e7)
• python: add Hull-White callable tree pricing bindings (c4a1997)
• python: add standalone Currency construction and accessors (070c44a)
• python: add unsendable FxForward bindings (3bdffaa)
• python: expose bond duration and flat-yield risk metrics (cb2e039)
• python: expose immutable FX delta calculator and conventions (48e4a7e)
• python: expose ordinary-bond coupon BPS and ATM helpers (621008f)
• python: expose standalone constant-parameter GSR process (528eca7)
• python: expose twenty currency preset factories (756e2c5)
• sdk: extend native oracle fixtures for zero-coupon bonds (b8371c2)
• src: add native float-float bindings and lifecycle tests (0cf8fed)
• testdata: add callable-bond QuantLib OAS source and fixture (f0304d7)
• xccy: add native behavior and C/C++ smoke coverage (f5cd52d)
• xccy: add Python facade and Go coverage map (211f3d3)
• xccy: add typed Go facade fixtures and runnable example (8ca69a2)

⚒️ Enhancement & Maintenance

• integration: wire Black FX delta docs and smoke probe loop (c8447b4)

♨️ CI, Workflows & Configs

• bindings: add currency docs and native client probe (151b40b)

🪲 Bug Fixes

• asset-swap: preserve pending policies across frozen cache reads (269b75a)
• libitofin-ffi: add currency C ABI and bound code buffers (bd41808)

Go bindings

Install github.com/benbenbang/libitofin/sdk/go@v0.44.0 with Go 1.27.1. The native archives and SHA-256 checksums are attached below for Linux amd64, Linux arm64, macOS amd64, and macOS arm64. cgo, a C compiler, and the matching native package are required. See the installation guide.

Windows amd64 native Go package (GNU/MinGW) is available with its SHA-256 checksum; use a matching MinGW cgo compiler.