v1.4.0

Changelog

[1.4.0] - 2021-10-14

Casper Node (casper-node/node/)

Added

• Add enable_manual_sync boolean option to [contract_runtime] in the config.toml which enables manual LMDB sync.
• Add new event to the main SSE server stream accessed via <IP:Port>/events/main which emits hashes of expired deploys.
• Add contract_runtime_execute_block histogram tracking execution time of a whole block.
• Long-running events now log their event type.
• Individual weights for traffic throttling can now be set through the configuration value network.estimator_weights.
• Add consensus.highway.max_request_batch_size configuration parameter. Defaults to 20.
• New histogram metrics deploy_acceptor_accepted_deploy and deploy_acceptor_rejected_deploy that track how long the initial verification took.
• Add gzip content negotiation (using accept-encoding header) to rpc endpoints.
• Add state_get_trie JSON-RPC endpoint.
• Add info_get_validator_changes JSON-RPC endpoint and REST endpoint validator-changes that return the status changes of active validators.

Changed

• The following Highway timers are now separate, configurable, and optional (if the entry is not in the config, the timer is never called):
• standstill_timeout causes the node to restart if no progress is made.
• request_state_interval makes the node periodically request the latest state from a peer.
• log_synchronizer_interval periodically logs the number of entries in the synchronizer queues.
• Add support for providing node uptime via the addition of an uptime parameter in the response to the /status endpoint and the info_get_status JSON-RPC.
• Support building and testing using stable Rust.
• Log chattiness in debug or lower levels has been reduced and performance at info or higher slightly improved.
• The following parameters in the [gossip] section of the config has been renamed:
• [finished_entry_duration_secs] => [finished_entry_duration]
• [gossip_request_timeout_secs] => [gossip_request_timeout]
• [get_remainder_timeout_secs] => [get_remainder_timeout]
• The following parameters in config now follow the humantime convention ('30sec', '120min', etc.):
• [network][gossip_interval]
• [gossip][finished_entry_duration]
• [gossip][gossip_request_timeout]
• [gossip][get_remainder_timeout]
• [fetcher][get_from_peer_timeout]

Removed

• The unofficial support for nix-related derivations and support tooling has been removed.
• Experimental, nix-based kubernetes testing support has been removed.
• Experimental support for libp2p has been removed.
• The isolation_reconnect_delay configuration, which has been ignored since 1.3, has been removed.
• The libp2p-exclusive metrics of read_futures_in_flight, read_futures_total, write_futures_in_flight, write_futures_total have been removed.

Fixed

• Resolve an issue where Deploys with payment amounts exceeding the block gas limit would not be rejected.
• Resolve issue of duplicated config option max_associated_keys.

Execution Engine (casper-node/execution_engine/)

Added

• Added genesis validation step to ensure there are more genesis validators than validator slots.
• Added a support for passing a public key as a target argument in native transfers.
• Added a max_associated_keys configuration option for a hard limit of associated keys under accounts.

Changed

• Documented storage module and children.
• Reduced visibility to pub(crate) in several areas, allowing some dead code to be noticed and pruned.
• Support building and testing using stable Rust.
• Increase price of create_purse to 2.5CSPR.
• Increase price of native transfer to 100 million motes (0.1 CSPR).
• Improve doc comments to clarify behavior of the bidding functionality.
• Document core and shared modules and their children.
• Change parameters to LmdbEnvironment's constructor enabling manual flushing to disk.

Fixed

• Fix a case where user could potentially supply a refund purse as a payment purse.

Node Macros (casper-node/node_macros/)

Changed

• Support building and testing using stable Rust.

Casper Types (casper-node/types/)

Added

• Add json-schema feature, disabled by default, to enable many types to be used to produce JSON-schema data.
• Add implicit datasize feature, disabled by default, to enable many types to derive the DataSize trait.
• Add StoredValue types to this crate.

Changed

• Support building and testing using stable Rust.
• Allow longer hex string to be presented in json files. Current maximum is increased from 100 to 150 characters.
• Improve documentation and Debug impls for ApiError.

Deprecated

• Feature std is deprecated as it is now a no-op, since there is no benefit to linking the std lib via this crate.

Cargo Casper (casper-node/execution_engine_testing/cargo_casper)

Changed

• Support building and testing using stable Rust.

Removed

• Remove support for generating an ERC-20 contract.

Test Support (casper-node/execution_engine_testing/test_support)

Changed

• Support building and testing using stable Rust.

Contract (casper-node/smart_contracts/contract)

Added

• Add no-std-helpers feature, enabled by default, which provides no-std panic/oom handlers and a global allocator as a convenience.
• Add new APIs for transferring tokens to the main purse associated with a public key: transfer_to_public_key and transfer_from_purse_to_public_key.

Deprecated

• Feature std is deprecated as it is now a no-op, since there is no benefit to linking the std lib via this crate.

Contract AssemblyScript (casper-node/smart_contracts/contract_as)

Added

• Add function to create an account hash from a public key.
• Add getter for public key algorithm name.
• Add getter for raw bytes of public key.
• Export casper_blake2b.
• Add new APIs for transferring tokens to the main purse associated with a public key: transferToPublicKey and transferFromPurseToPublicKey.

Fixed

• Fix instances of return <T>unreachable() which is invalid code under the latest AssemblyScript compiler.