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Release History
===============

Initial release (2026-09-28)
----------------------------

This first documented release of ``quantplus`` introduces the package as a small,
performance-oriented option-pricing library built around the Cox-Ross-Rubinstein
(CRR) binomial model.

Included features
~~~~~~~~~~~~~~~~~

- CRR option pricing for European and American options
- Black-Scholes closed-form pricing for benchmarking
- tree-output utilities for inspecting terminal stock and option states
- optional stock-price threshold pruning at expiry or every tree step
- an interactive tree plot with draggable thresholds and live repricing
- Cython-based Python bindings around a native C++ implementation
- regression tests covering correctness and convergence behavior

Project goals
~~~~~~~~~~~~~

The package is intentionally focused on a narrow but important problem: pricing
vanilla options with transparent numerical methods and a simple API. The design is
meant to be easy for users to understand while still leveraging native code for
performance-critical computations.

Future direction
~~~~~~~~~~~~~~~~

Possible future additions include:

- more option types and payoff structures
- more advanced Greeks calculations
- additional numerical benchmarks and validation examples
- additional documentation and usage examples for quantitative finance workflows

The current release is deliberately small and readable, making it a solid base for
future extension without increasing conceptual complexity.