#106·Runtime Upgrade 1200

The main content of this Runtime Upgrade is the same as Runtime Upgrade 1103 with addition of the migration to OpenGov:

• Adds OpenGov for Development and Altair Runtimes which coexists with current Gov1 structure
  • Altair config based on https://gov.centrifuge.io/t/rfc-altair-migration-to-opengov/6011
  • Altair parametrization based on https://docs.google.com/document/d/1asoDHtIT3bhSnwfQir3SZ7NN-5D1i02s01clh9lEd0k
• Applied all changes from v0.11.3 to Altair runtime
  • Includes CheckMetadataHash signed extension which enables generic Polkadot Ledger support (#1865)

See more information in the forum post here: https://gov.centrifuge.io/t/council-motion-106-runtime-upgrade-1200/6480