An essential new Heimdall update has been released, specifically designed to prepare the network for the upcoming Heimdall v1 to v2 Mainnet migration.
This release must be installed on all Mainnet nodes well in advance of the scheduled migration. The transition is planned for Thursday, July 10th, 2025, between 2:00 PM and 5:00 PM UTC. During this window, the Mainnet Heimdall chain will halt at height 24404500 to initiate the upgrade process.
Key changes in this version include a critical update that prevents checkpoint submission prior to the "apocalypse", a mechanism vital for enabling a smooth and controlled network halt and migration.
Other notable improvements focus on refining core functionalities, including updates related to Bor's interactions (enabling 'Bor without Heimdall' operations) and enhancements for exporting milestones.
Important: This release is exclusively for the Mainnet network. Ensure it is deployed on all Mainnet nodes to facilitate the upcoming v1 to v2 migration.
🚨 ⚠️ ONLY USE ON MAINNET NETWORK ⚠️🚨 This release must be installed on all nodes in the mainnet network for the upcoming Heimdall v1 to v2 migration, scheduled on **Thursday, July 10th, 2025**, between **2.00 PM and 5.00 PM UTC**. The mainnet heimdall chain will halt at height **24404500** to initiate the migration. ## What's Changed * Backport master to develop by @marcello33 in https://github.com/maticnetwork/heimdall/pull/1273 * Packager updates by @djpolygon in https://github.com/maticnetwork/heimdall/pull/1276 * Export milestones by @avalkov in https://github.com/maticnetwork/heimdall/pull/1277 * amoy genesis file by @marcello33 in https://github.com/maticnetwork/heimdall/pull/1279 * fix typo by @marcello33 in https://github.com/maticnetwork/heimdall/pull/1280 * Prevent checkpoint submission prior to the apocalypse by @Raneet10 in https://github.com/maticnetwork/heimdall/pull/1281 * Bor without heimdall by @avalkov in https://github.com/maticnetwork/heimdall/pull/1278 * Set default span duration by @avalkov in https://github.com/maticnetwork/heimdall/pull/1283 * helper: set the apocalypseHeight to 8788500 (to use for amoy only) by @pratikspatil024 in https://github.com/maticnetwork/heimdall/pull/1284 **Full Changelog**: https://github.com/maticnetwork/heimdall/compare/v1.2.3...v1.6.0