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Update CHANGELOG.md #69

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Apr 23, 2024
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Update CHANGELOG.md #69

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8 changes: 8 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -7,6 +7,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/).

## [Unreleased]

## [4.0.2] - 2024-04-23

### Performance improvement

The rail generators (infrastructure) implementation is based on A*. The A* implementation has been improved in terms of calculation time. The main modification concerns the internal data structure which was widely used in the A* algorithm. The used ordered set is replaced by a heap that allows to fetch the nearest nodes in O(1) instead of O(n).

More details: https://github.com/flatland-association/flatland-rl/pull/68

## [4.0.1] - 2023-10-30

### Fixed
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