Release v0.10.7

[bryanchriswhite]

Summary

Tracking issue for the v0.10.7 ledger release

Outstanding Tasks

• [x] fetchai/cosmos-sdk#133
• [x] Release cosmos-sdk v0.18.3
• [x] Update cosmos-sdk in fetchd
• [ ] Sanity checks on local network (optionally GKE sandbox)
  • Staking
    • Adding / removing validator
    • (Un/)Delegating
    • ...
  • Contracts
    • Store
    • Exec
  • Network upgrade procedures
    • Simulated upgrade (run new version against chain from old version)
      • Download state snapshot for testnet & mainnet to load in local node
        • modify validators
      • Run the upgrade process locally
    • Upgrade handler
    • Is there anything that node operators need to do to upgrade successfully?

Release

• [ ] Cut release candidate
• [ ] Upgrade testnet with release candidate
• [ ] Create final release
• [ ] Update testnet with production version
• [ ] Submit network upgrade proposal