Remove StateTrieMigration pallet - V0→V1 migration complete #1040
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Update value of MigrationMaxKeyLen to proceed with migration via bot on both KAH and PAH
Set ControlOrigin to MigController
Migration limit could be set either by fellowship or MigController
The state trie migration from V0 to V1 format has been completed on: - Polkadot relay chain (2,192,421 top items + 10,423 child items) - Asset Hub Polkadot (5,448,606 top items) - Asset Hub Kusama (288,016 top items) This PR removes the pallet-state-trie-migration from these runtimes and adds RemovePallet migrations to clean up the storage. Closes polkadot-fellows#74 (for Polkadot ecosystem chains)
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bkchr
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Dec 18, 2025
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Summary
The state trie migration from V0 to V1 format has been completed on all Polkadot ecosystem chains:
This PR removes the
pallet-state-trie-migrationfrom these runtimes and addsRemovePalletmigrations to clean up the storage.Changes
For each runtime:
pallet-state-trie-migrationdependency fromCargo.tomlimpl pallet_state_trie_migration::Config)construct_runtime!macroRemovePallet<StateTrieMigrationPalletName, DbWeight>migrationMigControlleraccounts and tests (Asset Hubs only)Reference
Test Plan
Closes #74 (for Polkadot ecosystem chains)