What's changed:
- improving finality gadget resilience for processing forks on old branches fixing data availability problems
- massive network upgrade adding a new protocol for direct communication among committee members
- pallet staking enabling nominating validators and introducing constant inflation of 30M per year
- pallet aleph migration decouples validators election from supporting finality gadget
- pallet elections introducing PoA elections as a first step towards open elections
- pallet utility enabling users to send transactions in batches
- pallet transaction payment adds a mechanism for dynamic fee adjustment related to block saturation
- substrate update 9.9 -> 9.13 including a pallet vesting migration, which allows for setting multiple vesting schedules per account