3.0.1

Changes in the node since release 1.1.3

• Fix a bug due to incorrect use of LMDB database environments where a node would crash if queried at specific times.
• Faster state queries by avoiding locking the block state file when reading.
• Fix a bug by shutting down RPC before the node, which caused the node to crash when attempting a graceful shutdown while processing RPC requests.
• Introduce support for account aliases via protocol P3. Accounts can be queried in GetAccountInfo, GetAccountNonFinalizedTransactions, GetNextAccountNonce by any alias.
• GetAccountInfo object has an additional field accountAddress that contains the canonical address of the account.
• The node now drops all connections on an unrecognized protocol update and refuses to accept new transactions.

1.1.3-1

Changes in the node since release 1.0.1

• Node improvements and new features

  • Update dependencies, code cleanup, and removal of the staging_net feature.
  • Fix a number of bugs that led to node crashes due to failed block lookup in some situations.
  • Fix a bug in average throughput calculation that was triggered in some cases
    of bad connectivity.
  • Add support for configuring the node and the collector via environment
    variables in addition to command line arguments. This is a breaking change in
    that flags now need to have an explicit argument.
  • Remove use of unbound for DNS resolution. This also removes the dnssec functionality, and the
    flag --no-dnssec is no longer supported. The command-line option --resolv-conf is also
    removed, as the system resolver will be used.
  • Introduce protocol P2 that supports transfers with memo.
  • Implement protocol updates, allowing migration to a new protocol. Two protocol updates are
    implemented. One which does not switch to a new protocol version, but allows for updating a number
    of genesis parameters that would otherwise be immutable, while retaining the
    state. A second protocol update updates from P1 to P2.
  • Reduced logging of certain events. Received blocks, finalization messages/records, and
    transactions are only logged at Trace level. GRPC queries are not logged.
  • Support log4rs logging, by specifying a configuration file
    (in toml or yaml format) with the --log-config argument or CONCORDIUM_NODE_LOG_CONFIG
    environment variable.
  • A Windows node runner service and installer.
    See service/windows/README.md.
  • Support custom path for genesis data via CONCORDIUM_NODE_CONSENSUS_GENESIS_DATA_FILE.
  • For macOS:
    • Added option to use the native mac logging system. To enable it, provide
      the new flag --use-mac-log <subsystem-name>. The flag is available on both
      the node and collector with corresponding, respective, environment variables
      CONCORDIUM_NODE_MACOS_USE_MAC_LOG and CONCORDIUM_NODE_COLLECTOR_USE_MAC_LOG.
    • When the flag is provided, you can view the logs with log show --predicate 'subsystem == "<subsystem-name>"', or by using Console.app.

• Network API changes

  • Remove unused --bootstrap-server flag.
  • Support for a new wire-protocol version (version 1) that adds a genesis index to non-transaction
    messages, a version header to catch-up messages. Version 0 is still supported for communication
    with legacy nodes during migration.
  • Relax compatibility check so that the node only checks a lower bound on the
    peer major version, in contrast to requiring an exact major version match.

• Database changes

  • Global state database now includes version metadata. The treestate directory and blockstate file
    names are suffixed with "-n" to indicate genesis index n.
    A legacy database will automatically be migrated by renaming and adding version metadata.
  • Change the automatically created indices on the transaction logging database.
    Instead of an index on the id column on ati and cti tables there are now
    multi-column indices that better support the intended use-cases. This only
    affects newly created databases.
  • The block export format has been revised to a new version (version 3) which allows for
    protocol updates. Version 2 is no longer supported.

• GRPC API changes

  • In the GetRewardStatus GRPC call, the amounts that were previously represented as integers are now
    represented as strings in the JSON serialization. This is in line with how amounts are serialized
    elsewhere.
  • The behaviour of GetAccountList, GetInstances, and GetModuleList have changed in the case
    where the block hash is ill-formed. Instead of returning the JSON string "Invalid block hash.",
    these functions will now return the JSON null value.
  • GetConsensusStatus return value has additional fields to indicate the protocol
    version and effected protocol updates.
  • GetBlockInfo return value has additional fields indicating the genesis index and local height
    (relative to the genesis block at the genesis index) of the block. The block height reported
    is absolute. The reported parent of a re-genesis block will be the last final block of the
    preceding chain, so the absolute height indicates how many times the parent pointer should be
    followed to reach the initial genesis.
  • GetBlocksAtHeight supports specifying a genesis index, with the supplied height being treated as
    relative to the genesis block at that index. An additional flag allows restricting the query to
    just that index.

1.0.1-0

Release for mainnet launch.