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Added

• Smart contract: adress generation utilites
• Smart contract: test contract

Changed

• Network: time synchronization protocol accuracy is increased
• Communication Protocol: time synchronization messages are updated
• Smart contract: base contract class structure

Checksums

Added

• Smart contract: base initialization
• Smart contract: base entities
• Smart contract: base service interface
• Smart contract: samples
• Core: unconfirmed balance check by unconfirmed transactions
• Wallet UI: sorting transactions by timestamp in a reverse order

Changed

• Core: transaction validation improved when creating a block
• Core: update configuration file information when values change
• Database: unconfirmed balance removed from wallets table

Checksums

Added

• Core: transaction validation
• Core: transactions priority balancing
• Core: block capacity
• Database: tables indexes
• RPC: recalled vote flag
• RPC: vote date to "get all votes" response

Changed

• SQLite database changed to H2
• Core: unconfirmed balance calculation is improved

Checksums

Added

• Consensus: delegate public key field to a delegation transaction
• RPC: delegate public key parameter to a delegation transaction request
• Network: node ID as a network identifier
• Core: unconfirmed output balance to a wallet
• RPC: wallet address validation
• RPC: node ID added to active delegate response
• Wallet UI: Send delegate transaction
• Wallet UI: Send vote transaction
• Wallet UI: Transactions list

Changed

• Network: addresses exploring mechanism
• Network: nodes reconnection mechanism
• Core: synchronization mechanism
• Core: wallet balances calculation improved

Checksums

Added

• Master nodes initiation as active delegates on chain start
• Configuration file
• Network: Greeting response message contains node's external host

Changed

• Node private key moved from a separate file to a configuration file
• Network: Improved connection to active delegates
• Core: Improved vote transaction validation when a wallet had already voted
• Core: Empty block creation is allowed

Checksums

Added

• Application properties for docker

Checksums

Added

• Network: A UID for nodes
• Sync: Up node synchronization
• Sync: Application synchronization status
• Sync: Check application synchronization status and start synchronization if need
• RPC: Get explorer info
• RPC: Get a list of blocks
• RPC: Get a list of transactions
• RPC: Main and genesis block endpoints unit tests
• Wallet UI: Create a transaction
• Wallet UI: Past transaction list

Changed

• Core: Genesis and Main blocks are not broadcasted after creation, pending blocks are broadcasted instead
• Core validation: Now it is impossible to create vote transaction on the nonexistent delegate
• Core validation: Now it is impossible to generate a request of vote transaction with the nonexistent vote type
• Core validation: Now it is impossible to create transactions with a negative fee
• Core validation: Improved fee and amount validation for the transfer transaction
• Core: Removed validation from main block service on adding a block
• Core: Removed validation from genesis service on adding a block

Checksums

Added

• Consensus: Intervals between time slots for synchronization
• Consensus: Prevote stage on block creation
• Consensus: Commit stage on block creation
• Wallet UI: Generate a seed phrase
• Wallet UI: Create a wallet
• Wallet UI: Save wallet data in a file
• Wallet UI: Protect the file with password
• Wallet UI: Access wallet with file
• Wallet UI: Restore wallet from a private key
• Wallet UI: Restore wallet from the seed phrase
• RPC: Total number of nodes connected to the network
• RPC: Get number of current epoch
• RPC: Get when the current epoch started
• RPC: Get number of delegates
• RPC: Get number of an epoch when the block was created
• RPC: Import private key in hex format
• RPC: Get transactions by wallet address

Changed

• New file structure

Checksums

Added

• Time slots mechanism
• Delegate transaction
• Vote/Recall vote transaction
• Vote weight based on wallet balance
• Reward transaction
• Transaction sign
• Delegate transaction verification
• Vote/Recall vote verification
• Reward transaction verification
• Transaction fee
• Genesis address defined in properties
• Transactions fees are defined in properties
• Reward for block creation is defined in properties
• RPC: Add delegate transaction
• RPC: Add vote/recall vote transaction
• RPC: Add transfer transaction
• RPC: Get delegates info
• RPC: Page request filter
• RPC: Application version and timestamp fields to all responses
• TCP: Application version and timestamp fields to all packets
• Database: unconfirmed transactions tables

Changed

• Serialization mechanism to support kotlin classes
• Transactions structure

Checksums

Added

• Address mixed-case checksum
• Address validation
• RPC requests: validateAddress
• Vote transaction type
• Voting algorithm mechanism
• Voting storing
• Delegate rating calculation
• Active delegates storing
• Wallet balance calculation
• Database: added Wallet entity
• RPC requests: getWalletBalance
• Sign data
• Verify signed data
• Define epoch duration in properties
• Get current epoch height
• Check if genesis block is needed
• Sharing peers between nodes
• Maintaining necessary connections count
• Connection establishing logic
• Scheduled check of connections
• Reconnection logic
• Generating private and public key pairs on app start and saving in a file if not existing
• Shuffle active delegates
• Transaction Merkle hash calculation
• Block production
• Block validation
• Block, transaction, signature conversion from protobuff to the business object and vice versa
• Accumulation of signatures from nodes
• Block approving
• Block applying by scheduling

Changed

• Default account info is added to the doGenerateMaster end-point response
• doGenerateMaster end-point renamed to doRestore
• Blocks are divided by types: GenesisBlock and MainBlock

Checksums