# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [Unreleased]
## [0.12.1](https://github.com/denehoffman/laddu/compare/laddu-python-v0.12.0...laddu-python-v0.12.1) - 2026-01-05
### Other
- Development ([#94](https://github.com/denehoffman/laddu/pull/94))
## [0.12.0](https://github.com/denehoffman/laddu/compare/laddu-python-v0.11.0...laddu-python-v0.12.0) - 2025-12-17
### Other
- New file format ([#90](https://github.com/denehoffman/laddu/pull/90))
## [0.9.2](https://github.com/denehoffman/laddu/compare/laddu-python-v0.9.1...laddu-python-v0.9.2) - 2025-10-10
### Other
- Stochastic NLLs and `ganesh` update ([#87](https://github.com/denehoffman/laddu/pull/87))
## [0.9.1](https://github.com/denehoffman/laddu/compare/laddu-python-v0.9.0...laddu-python-v0.9.1) - 2025-08-08
### Added
- add VariableExpressions to handle Dataset filtering
## [0.8.1](https://github.com/denehoffman/laddu/compare/laddu-python-v0.8.0...laddu-python-v0.8.1) - 2025-06-20
### Added
- add `conj` operator to `Amplitude`s and `Expression`s
- add subtraction, division, and negation operations for all Amplitudes and Expressions
## [0.8.0](https://github.com/denehoffman/laddu/compare/laddu-python-v0.7.1...laddu-python-v0.8.0) - 2025-06-17
### Added
- add `evaluate(Variable)` method to `Dataset` and `Event`
### Other
- [**breaking**] change `Variable` trait methods to operate on `&Dataset` rather than `&Arc<Dataset>`
## [0.7.1](https://github.com/denehoffman/laddu/compare/laddu-python-v0.7.0...laddu-python-v0.7.1) - 2025-05-30
### Other
- updated the following local packages: laddu-core
## [0.7.0](https://github.com/denehoffman/laddu/compare/laddu-python-v0.6.2...laddu-python-v0.7.0) - 2025-05-20
### Added
- improvements to `Dataset` conversions and opening methods
### Fixed
- update Python vector names (closes #57)
## [0.6.2](https://github.com/denehoffman/laddu/compare/laddu-python-v0.6.1...laddu-python-v0.6.2) - 2025-05-16
### Added
- add method for boosting an event or a dataset to a given rest frame
## [0.6.1](https://github.com/denehoffman/laddu/compare/laddu-python-v0.6.0...laddu-python-v0.6.1) - 2025-04-25
### Added
- add available_parallelism function to python API
## [0.6.0](https://github.com/denehoffman/laddu/compare/laddu-python-v0.5.1...laddu-python-v0.6.0) - 2025-04-11
### Other
- complete compatibility with newest version of bincode, remove unused dependencies and features across all crates
## [0.5.1](https://github.com/denehoffman/laddu/compare/laddu-python-v0.5.0...laddu-python-v0.5.1) - 2025-04-04
### Other
- update Cargo.toml dependencies
## [0.4.2](https://github.com/denehoffman/laddu/compare/laddu-python-v0.4.1...laddu-python-v0.4.2) - 2025-03-13
### Added
- add unit-valued `Expression` and define convenience methods for summing and multiplying lists of `Amplitude`s
- add `Debug` and `Display` to every `Variable` (and require them for new ones)
### Fixed
- improve summation and product methods to only return a Zero or One if the list is empty
## [0.4.1](https://github.com/denehoffman/laddu/compare/laddu-python-v0.4.0...laddu-python-v0.4.1) - 2025-03-04
### Fixed
- get rid of unused variable warning
3# [0.4.0](https://github.com/denehoffman/laddu/compare/laddu-python-v0.3.0...laddu-python-v0.3.1) - 2025-02-28
### Added
- redefine eps->aux in `Event` definition
### Other
- move all MPI code to `laddu-python` to make sure MPI docs build properly
## [0.3.0](https://github.com/denehoffman/laddu/compare/laddu-python-v0.2.5...laddu-python-v0.3.0) - 2025-02-21
### Added
- update MPI code to use root-node-agnostic methods
- first pass implementation of MPI interface
### Fixed
- forgot to update the `laddu-python` `use_mpi` function to have a trigger arg
- add feature flag to `laddu-python` and update MSRV for `mpisys` compatibility
### Other
- update all documentation to include MPI modules
- add some clippy lints and clean up some unused imports and redundant code
- _(vectors)_ use custom type for 3/4-vectors rather than trait impl for nalgebra Vectors
## [0.2.5](https://github.com/denehoffman/laddu/compare/laddu-python-v0.2.4...laddu-python-v0.2.5) - 2025-01-28
### Other
- update Cargo.toml dependencies
## [0.2.4](https://github.com/denehoffman/laddu/compare/laddu-python-v0.2.3...laddu-python-v0.2.4) - 2025-01-27
### Added
- allow for the use of `sum(list[Dataset])` in Python code
## [0.2.3](https://github.com/denehoffman/laddu/compare/laddu-python-v0.2.2...laddu-python-v0.2.3) - 2025-01-24
### Other
- updated the following local packages: laddu-core