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CHANGELOG.md

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Changelog

All notable changes to flatland will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

Fixed

  • non-deterministic test failures [pr #103]

[4.0.3] - 2024-04-23

New

  • grid to digraph conversion. [pr #90]
  • data structures for decision point graph. [pr #90]

Removed

  • Remove images folder. [pr #82]
  • Remove rendering folder. [pr #81]
  • Cleanup scripts folder. [pr #80]
  • Remove action_plan module as obsolete. [pr #79]

Changed

  • Bump tornado from 6.4.1 to 6.4.2. [pr #93]
  • Bump aiohttp from 3.10.10 to 3.10.11. [pr #94]

[4.0.3] - 2024-04-23

Github Action Release failed

Fixed.

[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: #68

[4.0.1] - 2023-10-30

Fixed

  • Removed dependency on an old version of gym which in turn brought in an old version of pyglet that caused issues on Windows.

[4.0.0] - 2023-10-27

Removed

  • Dropped support for Python 3.7 because it's end of life.

Changed

  • Improved performance by introducing an LRU cache.
  • Drastically improved performance by improving numpy usage.
  • Updated a lot dependencies.
  • Cleaned the project structure.
  • First release handled by the flatland association!

Fixed

  • Fixed a lot of bugs :)
  • The tests actually pass now.