evmparamsmigration

Overview ¶

Package evmparamsmigration contains the upgrade handler that migrates the x/vm module's on-chain Params from the v0.2.x proto layout to the v0.3.x layout.

The schema change (ChainConfig removed from field 5, remaining fields shifted down) was not accompanied by a ConsensusVersion bump in the previous release, so the stored bytes are still in the old format. This upgrade bumps the vm module to ConsensusVersion 2 and runs the migration via RunMigrations.