ECML 2026 ========= The **[ECML 2026 Challenge](https://www.aicrowd.com/challenges/flatland-3)** is the newest competition around the **Flat**land environment. - Follow the [starterkit](https://github.com/flatland-association/ecml2026-starterkit) to make your first submission. - Read about the [evaluations metrics](ecml2026/eval) of this edition. - Read about the [level configurations](ecml2026/levelconfig) of this edition. ⏱ Timeline -------- * Competition start: May 4th, 2026 * Submission closure: June 8th, 2026 (AoE) * Winner announcement: June 15th, 2026 ⭐ Supported Flatland Versions ----------------------------- You must use Flatland version [4.2.5](https://github.com/flatland-association/flatland-rl/releases/tag/v4.2.5).