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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

OCaml node

  • Update the CI and code to compare with the latest release 3.2.0-alpha1-7f94ae0 (#1236, fix #1158)
  • Update the CI and code to compare with the latest release 3.2.0-beta1-978866c (#1250

Added

  • Documentation: Add instructions to update the OCaml node dependencies. (#1237)
  • Development Tools: Automation script for updating OCaml node references with comprehensive documentation and CI testing to ensure reproducibility (#1252)
  • Documentation: Complete Docusaurus-based documentation website with comprehensive guides for node runners, developers, and researchers (#1234). It migrates all the documentation from docs to website/docs. It includes SEO metadata and social media integration.
  • Documentation: Developer getting-started guide with automated setup scripts for system dependencies, Rust toolchain, Node.js, Docker, and WASM tools. This is run nightly and on-demand via PR labels to avoid blocking development workflow. (#1234).
  • Development Tools: Enhanced formatting infrastructure with MDX file support and trailing whitespace management (#1234)
  • Documentation: add instructions for developers using MacOS based systems, and test the installation commands in CI (#1247).
  • Development tools: Add shellcheck to the CI (#1255)

Changed

  • CI: Generalized build jobs to support multiple platforms (Ubuntu 22.04, Ubuntu 24.04, Ubuntu 24.04 ARM, macOS latest), updated test execution to ubuntu-latest, and fixed GLIBC compatibility for scenario tests by using Ubuntu 22.04 for test binary artifacts to ensure compatibility with Debian Bullseye container environment (#1249)
  • Build System: Enhanced Makefile with documentation-related targets and comprehensive formatting commands (#1234)
  • Use consistent use statements for fields. Replace mina_hasher::Fp with mina_curves::pasta::Fp. (#1269).

Fixed

  • Documentation: Resolved broken links and bare URL warnings in Rust documentation (#1234)
  • Build System: Fixed SQLx compilation errors in lint workflow (#1234)
  • Formatting: Standardized markdown and MDX files to 80-character line wrapping (#1234)
  • Build warnings: Fix the warnings generated by the missing lifetime (#1244)

Dependencies

  • bump proc-macro2 from 1.0.93 to 1.0.95 (#1230)
  • bump itertools from 0.10.5 to 0.12.0 #1228 (#1228)

0.16.0 - 2025-04-04

Added

  • GraphQL: More queries (snark pool, pending snark work, genesis block, ledger status).

Changed

  • GraphQL: Added more fields to daemonStatus query˙

Fixed

  • GraphQL: Some issues with accounts.
  • Block Producer: Corner case that caused the won slot search to sometimes be interrupted at epoch bounds.

0.15.0 - 2025-03-13

Added

  • Restored support for snark workers.
  • Archive: Support for storing blocks to AWS, GCP and filesystem.
  • Tooling: WebRTC traffic sniffer.
  • GraphQL:
    • sendPayment mutation.
    • sendDelegation mutation.
    • pooledUserCommands query.
    • pooledZkappCommands query.
    • Various other partially implemented queries expanded to ensure compatibility with the OCaml node.

Changed

  • P2P: Wait until full validation is complete before broadcasting transactions and completed works.
  • Transition frontier: Perform cheap consensus operation first, and then the more expensive proof verification.
  • Transaction pool: Unified libp2p and webrtc logic for the initial phase of handling transactions received from gossip network. As a result, processing of transactions received during bootstrap is delayed until the initial sync is complete.
  • Transaction pool: Suspend processing during block production.

Fixed

  • Transition frontier: Rare race condition in the case of forks during block production that could result in dropping staged ledgers too early.
  • Webnode: Replaced tokio channels which had a race condition that could crash the thread on WASM.
  • Transaction pool: Verify zkApp proofs in a dedicated thread to avoid blocking the state machine.

0.14.0 - 2025-01-31

Changed

  • Rust Toolchain: Updated the minimum required Rust toolchain to version 1.84.
  • Proofs: Optimizations (MSM, field inversion) that speed up proof production.

Fixed

  • P2P: Correct handling of yamux windows limits
  • P2P: Wait until full validation is complete before broadcasting blocks.
  • WebRTC/P2P: Handle propagation of messages received from the WebRTC network to libp2p's gossip network (blocks, snarks and transactions).
  • Transaction pool: Fixed checks for deep account updates when pre-validating transactions.

Added

  • Archive mode: Added support for archive mode, which allows the node to connect to an archiver process and store node data in a database.

0.13.0 - 2025-01-06

Fixed

  • Mempool: Inside the transaction and snark pool reducers, only broadcast locally injected transactions and producer snarks. Libp2p layer takes care of diffs received from gossip already.
  • P2P: Don't forget the initial peers list.
  • WebRTC connection leaks.
  • zkApp transaction proofs are now verified on a separate thread.
  • Sometimes produced blocks were broadcasted too early.
  • OneOrTwo::zip never panics now, on failure it returns an error.

Changed

  • On native, use jemalloc as the default allocator.
  • Allocations reduced considerably by using stack-allocated bignums in the VRF evaluator.
  • The same thread is now reused to verify all block proofs.
  • RUST_BACKTRACE is always set to full now.

0.12.0 - 2024-12-04

Fixed

  • Properly handle time in cases in which the system goes to sleep.
  • Various corner cases in block proof production.
  • Improved ledgers sync during bootstrap (be smarter about which peers to query).
  • P2P: More efficient memory usage when managing the p2p state.
  • P2P: Lower outgoing traffic by being more conservative about what is broadcasted to each peer.
  • P2P: Better handling of disconnections.
  • VRF: Correctly handle cases in which the delegator table is empty.
  • Webnode: Peer connection handling improvements.

Changed

  • Webnode: Reduced startup time by loading prover indexes in parallel to the bootstrap process.
  • Webnode: Faster field operations (faster hashing and proving).
  • Improved hashing performance by caching and reusing common prefixes.
  • Added more pre-validation checks for blocks received from the network.

Added

  • Webnode: Transaction propagation
  • P2P: Support for specifying the external ip to be advertised.

0.11.0 - 2024-10-31

Added

  • Webnode: Peer discovery and p2p based signaling (so that webnodes can find each other).
  • Webnode: Connection authentication.
  • Support for specifying external IPs.

Fixed

  • Ledger: Fixed a regression introduced in v0.10.0 that caused the ZKApp precondition checks ordering to not match the OCaml implementation's exactly, which resulted in block application failures.
  • Ledger: Corrected handling of custom tokens in the block application logic.
  • P2P: Reduced excessive outgoing traffic.
  • P2P: Yamux fixes and improvements (backpressure).
  • Webnode: Staging ledger sync timeout.

0.10.3 - 2024-10-16

Added

  • Support for name resolution in peer addresses.
  • Block producer docker compose setup.
  • WASM file containing the webnode is now included in the frontend image.
  • Logging output to the filesystem in addition to stdout.
  • Webnode: peer discovery and p2p based signaling.

0.10.0 - 2024-10-10

Added

  • GraphQL endpoints for o1js.
  • Support for batched verification of proofs.
  • Enabled full proof verification of completed works included in blocks.

Changed

  • Deduplication of zkApp logic.
  • Various internal improvements.

Fixed

  • Regression in the verification zkApp transactions with feature flags (introduced when upgrading proof-systems).
  • Potential overflow in yamux.
  • Added a missing check for next epoch seed finality

0.9.0 - 2024-10-02

Fixes

  • Many bugfixes, performance, security and stability improvements.

0.8.14 - 2024-09-18

Fixed

  • Correctly show transaction fee values in the frontend.
  • Make sure that incorrectly encoded finite field values are handled properly.

0.8.13 - 2024-09-18

Fixed

  • Many stability and security improvements.
  • Make the JSON encodings of many kinds of values closer to what the Mina node produces to increase compatibility.

Changed

  • Combined all frontend docker images into a single one configurable at runtime.
  • Many internal state machine refactorings.

0.8.3 - 2024-09-09

Fixed

  • Handling verification key updates with proof authorization kind.
  • Block producer incorrectly discarding blocks if staking ledger between best tip and won slot were different.

0.8.2 - 2024-09-06

Fixed

  • Include circuit blobs in docker images, required for block production.
  • Add missing bounds to ZkAppUri and TokenSymbol fields.
  • Various stability improvements to make sure the node will not crash in certain circumstances.

Changed

  • Root snarked ledger re-syncs now reuse the previously in-progress root snarked ledger instead of starting again from the next-epoch ledger.
  • Added --libp2p-keypair=<path to json> flag to specify encrypted secret key (with passphrase from MINA_LIBP2P_PASS environment variable).

0.8.1 - 2024-09-02

Fixed

  • Mempool: handling of missing verification key in the transaction pool.

0.8.0 - 2024-08-30

Added

  • Webnode: Streaming ledger sync RPC.
  • P2P: Meshsub for gossip.
  • P2P: Additional tests.

Fixed

  • Mempool: Various transaction pool issues.
  • Poseidon hashing and witness generation when absorbing empty slices.

Changed

  • Rust Toolchain: Updated the minimum required Rust toolchain to version 1.80.

0.7.0 - 2024-08-02

Added

  • Transaction pool (alpha).
  • Support for sending transactions, inspecting the transaction pool and the scan state to the block producer demo.

Fixed

  • P2P layer fixes and improvements.
  • Various internal fixes and improvements.

Changed

  • Rust Toolchain: Updated the minimum required Rust toolchain to version 1.79.

0.6.0 - 2024-07-01

Added

  • Devnet support.
  • Callbacks support in the state machine, support in reducer functions for queueing new actions.
  • Cache for the genesis and initial epoch ledgers data for faster loading.

Removed

  • Berkeleynet support.

Changed

  • State machine records are now encoded in postcard format.

Fixes

  • General improvements in performance and stability.
  • Various P2P layer issues.
  • Correct handling of heartbeats in long-running P2P RPCs.
  • Genesis snarked mask being overwritten, which sometimes resulted in some ledgers not being found when applying a block.
  • State machine record-and-replay functionality issues.
  • WASM target restored for the webnode.
  • WebRTC P2P protocol restored for the webnode.

0.5.1 - 2024-06-01

Added

  • ARM docker builds.

0.5.0 - 2024-05-31

Fixed

  • When applying blocks, use the supercharge_coinbase value from the block which was being ignored before.
  • Incorrect stream being used for RPC responses.
  • Allow multiple nodes running on the same host to connect to each other.
  • Invalid delta_block_chain_proof in block producer.
  • Various p2p layer fixes.

Added

  • Support for PubSub in the p2p layer.
  • Block producer dashboard, and simulator-based demo.
  • Support for parsing daemon.json files with custom genesis ledgers.
  • Chain ID computation (was hardcoded before).
  • Multiple RPC and p2p tests.
  • More limits to p2p messages, connections, and parsing.

Removed

  • Support for v1 messages in p2p layer.

0.4.0 - 2024-04-30

Fixed

  • Interactions with the ledger service are now async. This fixes situations in which expensive ledger operations could starve the state machine loop.
  • Ledger synchronization issue that happens when synchronizing the node during the second epoch.
  • Correctly handle the situation in which the best tip changes during staged ledger reconstruction, causing the reconstruct to produce a stale result.
  • Various edge cases in p2p layer (error propagation, disconnection, self-connection).

Added

  • Support for identify protocol.
  • P2P layer testing framework.
  • Frontend: Block production page.

Removed

  • Removed rust-libp2p based code, in favor of our own libp2p implementation.

0.3.1 - 2024-04-05

Changed

  • Internal improvements to the actions logging mechanism.

Fixed

  • Corrected sync stats for accounts fetching during ledger sync.
  • Pruning of kademlia streams and requests.

Added

  • Docker images tagged for each new release.
  • Bootstrap process testing on CI.

0.3.0 - 2024-03-29

Changed

  • Rust Toolchain: Updated the minimum required Rust toolchain to version 1.77.
  • Networking:
    • Libp2p Replacement: Transitioned from libp2p to a custom internal networking implementation. The transition will be finalized in the next release, completely removing the libp2p dependency.
      • Gossipsub: Pending support. Current version of the node performs initial bootstrapping but cannot stay synchronized with network broadcasts.
      • Kademlia: Partial implementation includes bootstrapping and FIND_NODE server/client functionalities.
      • Identify Protocol: Absent in this release, rendering the node unusable as a seed node.
  • Frontend:
    • Mobile Compatibility: Enhanced support for mobile platforms, improving user experience across various devices.

Fixed

  • Staged Ledger: Resolved an issue where the ledger reconstruct step would block the state machine.
  • Node Communication: Fixed a bug where nodes did not respond to ledger queries from bootstrapping peers, enhancing network cooperation.
  • Frontend:
    • Test Stability: Addressed and fixed previously failing tests.
  • Backend:
    • HTTP RPC: Corrected an error triggered when querying the /state endpoint.

Added

  • Bootstrap Efficiency:
    • Ledger Synchronization: Optimized the snarked ledger synchronization process during bootstrap, significantly reducing the time required.
    • Genesis Ledger Loading: Enhanced the loading mechanism for the genesis ledger, achieving much faster startup times.
  • Frontend Enhancements:
    • Network Node DHT view.
    • Network Bootstrap Stats for real-time monitoring of network bootstrap statistics.
    • Main Dashboard view.
  • Backend Improvements:
    • JsonPath Support: Enhanced the /state HTTP RPC endpoint with JsonPath support, offering more flexible state querying capabilities.

0.2.0 - 2024-02-29

Changed

  • Default Rust toolchain switched to stable channel (as of 1.75).
  • Internal refactoring to how leaf actions in the state machine are organized.

Fixed

  • Node can now connect to the current berkeleynet after updates to:
    • Wire type definitions.
    • Verification, proving and circuits.
    • Ledger and transaction application logic.

Added

  • Ledger tests on CI.

0.1.0 - 2024-02-02

Fixed

  • Optimized scan state to reduce memory usage by avoiding duplication of data.
  • Updated proof verification to be compatible with the current berkeleynet (rampup4).

Added

  • Introduced support for producing proofs (blocks, payments, zkApp transactions, and merge proofs) compatible with the current berkeleynet (rampup4), with pending support for generating circuits.
  • Added the ability to produce blocks (excluding user transactions) for testing purposes.
  • Implemented pruning of inferior blocks post synchronization with the best tip.
  • Enhanced the testing framework and debugging support as follows:
    • Improved compatibility with the OCaml node within the testing framework.
    • Introduced declarations for essential invariants to be verified by the test framework, simulator, and replayer.
    • Integrated SNARK worker into the simulator for SNARK production.
    • Added functionality to store dumps of blocks and staged ledgers for inspection upon block application failure due to mismatches.

0.0.1 - 2023-12-22

First public release.

Added

  • Alpha version of the node which can connect and syncup to the berkeleynet network, and keep applying new blocks to maintain consensus state and ledger up to date.
  • Web-based frontend for the node.