Starting with v0.11.0, the original source code in this repository is licensed under the PineForge Source License 1.2. See [LICENSE](LICENSE) for the controlling text. Releases up to and including v0.10.0 were released under Apache-2.0 and remain available under that license. For commercial licensing of HPO and codegen, see https://license.pineforge.dev.

pineforge-hpo is designed to operate on compiled strategy plugins through the public PineForge C ABI. That compiled-plugin path does not require redistributing a PineScript transpiler.

The optional direct-PineScript workflow may invoke the separately licensed pineforge_codegen Python module through the pinned external/pineforge-codegen-oss git submodule. It is not relicensed by this repository, and users are responsible for complying with its terms. The submodule need not be initialized when running an already compiled strategy plugin. Git submodules preserve independent copyright and license boundaries; their contents are not bundled into the HPO core.

The native optimizer integrates dlib's global function search. CMake downloads the pinned dlib v20.0.1 source archive from its official repository by default; a build may explicitly select an exact-version system package instead. dlib is distributed under the Boost Software License 1.0, which permits use and redistribution subject to retaining its copyright and permission notice. The upstream project and full license text are available at https://github.com/davisking/dlib and THIRD_PARTY_LICENSES/dlib.txt.

Pine Script is a trademark of TradingView, Inc. PineForge is not affiliated with, endorsed by, or sponsored by TradingView.

The TPE sampler includes the MIT-licensed CORE-MATH binary64 kernels for log, log1p, exp, expm1, cos and erfc. Their upstream source revision, original author notices and full license are retained in third_party/core_math/; see NOTICE and the integration record. MPFR is an optional accuracy-test dependency only and is not linked into the runtime library.

The Sobol sampler uses the direction numbers of Stephen Joe and Frances Kuo (file new-joe-kuo-6.21201, search criterion D(6)). Its first 1024 lines (dimensions 2 to 1024) are vendored unchanged in third_party/sobol_joe_kuo/ and compiled into a generated table; the upstream source is https://web.maths.unsw.edu.au/~fkuo/sobol/. The authors publish the table under their BSD-style licence, Copyright (c) 2008, Frances Y. Kuo and Stephen Joe. That licence text is retained verbatim in third_party/sobol_joe_kuo/LICENSE, and THIRD_PARTY_LICENSES/sobol_joe_kuo.txt is an unchanged copy of it that accompanies source and binary distributions (NOTICE carries the attribution; the wheel metadata carries the licence file). The names of the copyright holders and of the University of New South Wales and the University of Waikato are not used to endorse or promote this product. The authors' example program sobol.cc is not used. The licence of the table does not change the PineForge Source License 1.2 that governs the original source code of this repository.