CHANGELOG.md

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.

Highlights are marked with a pancake 🥞

Unreleased

Added

• Ensure log transactions as atomic #1060
• Define and implement Forge #1032
• Add LogStore trait and SQLite implementation #1004
• Add TopicStore trait and SQLite implementation #1011
• Ingest processor to insert operations and associate them with topic in store #1044
• as_bytes method for Body #1044
• Event processing pipeline in Node stream #1045
• Replay all operations for a topic based on offset #1064
• Log-prefix pruning processor #1073
• Process local operations #1080
• Process and aggregate metrics for sync events #1085
• Introduce system event API for Node #1087
• Return error when gossip message exceeds maximum size #1096
• Introduce Author and use super-trait in p2panda-core #1104
• Introduce Cursor type in core to track log heights #1104
• CursorStore to persist Cursor state in SQLite #1104
• Re-play events from any cursor, track acked state #1104

Changed

• Remove previous field from Header #1048
• Address book SQLite implementation and refactorings #1007
• Remove in-memory store in p2panda-store-next and use SQLite in p2panda-stream-next #1016
• Use p2panda-store-next SQLite stores in p2panda-net and p2panda-sync #1022
• Use Topic everywhere #1058
• More generic API for ingest & operation validation #1050
• Use Timestamp in Header #1062
• Node API improvements #1061
• Minor store improvements #1068
• Use Borrow to express required args in ingest #1078
• Use MockInstant for Timestamp when running tests #1081
• Derive log id from topic #1082
• Expose insert_bootstrap on the node API #1125
• Update iroh to v0.98.1 #1131
• Forge result is never None or duplicate #1132
• Update iroh to v0.98.2 #1137

Fixed

• Fix missing gossip events in sync manager #988
• Enforce strictly growing operations log in backlink validation method #1044
• Fix automatic roll-back of unused, dropped permits #1075
• Race where replay_from misses processing ops #1104
• Race where replay state was determined late #1104
• React to node address changes in mDNS test #1141

0.5.2 - 09/03/2026

Fixed

• Fix SQLite store handling of previous hashes #1051
• Fix missing gossip events in sync manager #988

0.5.1 - 09/02/2026

Changed

• Update iroh to v0.96.1 #978

Fixed

• Fix Drop impl causing premature gossip unsubscribe #968
• Fix panic on sink closure after error during sync session #972
• Gracefully handle concurrently deleted operations during sync #974
• Cleanup state in gossip unsubscribe handler #973
• Fix bind conflict with unique argument seed #980
• Fix tests: Subscribe to events before topic stream creation #981

0.5.0 - 21/01/2026

Added

• Introduce Conditions super-trait in p2panda-auth #780
• Add serde derives to all state structs in p2panda-auth #809
• p2panda-spaces: data encryption for groups and multiple devices #836 🥞
• Added Serialize and Deserialize to p2panda-spaces::Event #868
• Additional test for framed CBOR operation streaming #885
• p2panda-net rewrite (tracking issue)
  • mDNS discovery for iroh endpoint #869
  • Simple, incremental backoff logic for random walk #870
  • Discovery service connecting address book with iroh #872
  • Address book watchers to inform other systems about node info or topic set changes #876
  • Trusted transport info #878
  • Types, trait and API follow-ups of sync manager integration #879
  • Generate NeighborUp events when we join the gossip overlay #882
  • Non-blocking manager event streams #883
  • Reset backoff when subscribing to topic #888
  • Remove transport info when connection attempt failed #889
  • Track if node is stale in address book #891
  • Hash-based private set intersection for topic discovery #895 🥞
  • Improve time-critical tests by using mock_instant #896
  • Re-initiate sync with node if session fails #902
  • Fix ordering for events updating our own transport info #904
  • Do not report failed connection attempts when own node has limited reachability #905
  • Heal gossip overlay after coming up back online #906
  • Add missing relay url in user data during mDNS discovery #907
  • Allow endpoint to gracefully shut down on drop #908
  • Modular API for new p2panda-net #909 🥞
  • Method to configure relay urls in Endpoint builder #948
  • Chat example for p2panda-net using modular API #929

Changed

• One global state object and operation graph for all groups #781
• Handle strong removal edge cases and cycles in nested groups, improve concurrent re-adds #788
• Make Extensions non-optional #811
• Add subscription() method to SyncManager which returns Stream #873
• Improvements to sync poller actor with tests #877
• Do not overwrite serde errors during deserialization of Header #886
• Module refactoring and minor API improvements in p2panda-sync #944

Fixed

• Enable nonblocking for unbound socket used in mdns discovery #794
• Allow managing multiple long-term pre-keys #830
• Remove uni-streams limit, additional tests for gossip #874
• Do not overwrite serde errors during deserialization of Header #886
• Handle outdated operations which got processed while being pruned, fix overflow substraction bug #894
• Gossip handles address book for sync topic #942
• Race-condition in add_topic and remove_topic #947

0.4.0 - 07/07/2025

Added

• p2panda-auth: decentralised group management and authorization #757 🥞
• p2panda-encryption: decentralized data- and message encryption for groups #731 🥞
• Expose sqlite migrations #744
• Trait definitions for atomic write transactions #755

0.3.1 - 14/04/2025

Added

• Partial ordering algorithm for operations #710

Changed

• Update dependencies (including iroh v0.34.1) #738

Fixed

• Reset gossip state to rejoin after major interface change #726
• Wait for relay connection initialisation and first direct address #725
• Only decrement the gossip buffer counter if it exists and is greater than zero #722

0.3.0 - 11/03/2025

Added

• Introduce concrete error type for SqliteStore #698
• Implement SQLite OperationStore & LogStore #680
• Introduce network system events API #669

Changed

• Refactor sync manager to reduce complexity #714
• Expose bootstrap mode setting for network chat example via CLI arg #709
• Expand chat example with relay, mdns and bootstrap options #690
• Remove logging from network tests #693
• Give access to header in Extension::extract method #670
• Update to iroh v0.31.0 #672
• Update to iroh v0.33.0 #707
• Update to Rust Edition 2024 #706

Fixed

• Deduplicate node addresses in address book #691
• Allow bootstrap peer to already enter topic-discovery overlay without any known peers #688
• Poll logic causing ingest to never resolve #697
• Schedule sync re-attempt after any error occurred #702

0.2.0 - 20/01/2025

Changed

• Expose API for setting IPv4 and IPv6 IP and port #663
• Re-export gossip config from iroh-gossip #662
• Introduce offline-first capability for LocalDiscovery mDNS service #660
• Update to iroh v0.28.1 #661
• Make log sync protocol bidirectional #657
• TopicMap replaced by TopicLogMap #650
• Reset sync and gossip state on major network interface change #648
• Remove Default, Sync and Send from LogId supertrait definition #633

Fixed

• Fix re-attempt logic for out-of-order buffer in Ingest stream #666

0.1.0 - 06/12/2024

Version v0.1.0 represents the first release of the new p2panda stack! You can find out more details by reading our blog.