Divi 3.0.0

Release Notes - Hard Fork Update.

This MANDATORY update activates hardfork features on time stamp 🕰️ 1692792000 (Aug 23, 2023), deprecates masternodes, and introduces significant new features, improvements, and fixes.

🚀 New Features

• Activation timestamp for new hardfork features: 🕰️ 1692792000 (Aug 23, 2023)
  • Masternode deprecation
  • (BETA) New opcode activation: OP_LIMIT_TRANSFER, OP_CHECKLOCKTIMEVERIFY
    • Hyper-cold UTXOs (can only send to even-deeper cold storage FIRST)
    • Refund-only transactions for in-store purchases (so store attendants can't spend)
• Introduction of Multi-wallet support (loadwallet)
• Improved vault funding by allowing the creation of multiple utxos simultaneously (Repetitions)
• Improve vault withdrawal to support address specific vault withdrawal (debitvaultbyname)
• Added the option to treat accounts names as labels (i.e. restrict spending within labels only)(-accountlabel)
• Added support for sending with flags (sendtoaddress, sendtomany, receiver_pays, sweep_funds)

🛠️ Improvements

• Resolved balance edge cases with zero confirmation spending
• Significantly improved testing coverage
• Improve RPC management for lock/unlock commands (unlocking from staking mode now reverts to original state after unlocking for spending)
• Significant refactoring of the core chain extension logic
• Extensive addition of interfaces for testing and decoupling
• Added automatic rescan after a seed restore
• Improved Vault Staking on withdrawal: Coin Selection Algorithm spends the youngest UTXO
• Encryption of wallet no longer requires daemon shutdown
• Initial steps towards third-party db integration for wallet data (SQL, Postgres, Mongo, etc.)

🐛 Fixes

• Fix crash recovery method bug that results in nodes failing to move past block 100 (-recoverblockdb)

🔄 Changes

• Move initialization settings flags into the Settings state
• Deprecate mempool indices for tracking 'nominal' balance changes