CHANGELOG
Release V21.0RC1
Full Changelog
Major Changes
| Pull Request | Title |
|---|---|
| #2545 | Sideband upgrade using epoch byte for is_send/receive/epoch |
| #2487 | IPC 2.0 |
| #2535 | Election state refactor |
| #2446 | Node telemetry |
Protocol Changes
| Pull Request | Title |
|---|---|
| #2667 | Validate work difficulty during ledger processing |
| #2683 | Increase minimum supported protocol version to 17 |
| #2701 | Dont peer with v20 and earlier after epoch 2 block is seen |
Node Configuration Updates
| Pull Request | Title |
|---|---|
| #2588 | LMDB sync options and new config settings |
| #2724 | Clarify nano_pow_server configs are not in use |
| #2727 | Safely read override values when no config file is present |
| #2787 | Double default bandwidth limit config |
RPC Updates
| Pull Request | Title |
|---|---|
| #2689 | BREAKING Change response for RPC work_validate with implicit difficulty |
| #2671 | BREAKING Handle epoch_2 work thresholds in the wallet and most RPCs |
| #2499 | BREAKING Bootstrap attempts and connections/pulls separation |
| #2560 | Request telemetry data for local node |
| #2569 | Work version concept |
| #2619 | Election refactor follow up |
| #2684 | Epoch 2 started flag in ledger cache |
| #2703 | Difficulty calculation for RPC block_create |
| #2704 | Asynchronous epoch upgrade RPC |
| #2718 | Epoch upgrader as an async task |
| #2752 | Result difficulty in RPC block_create |
| #2753 | Flood difficulty updates from RPC process |
| #2754 | Optional "block" given to RPC "work_generate" to infer difficulty |
| #2804 | Make RPC name consistent with stats, websocket & protocol naming for telemetry |
IPC Updates
| Pull Request | Title |
|---|---|
| #2644 | Add Flatbuffers schema evolution rules to IDL |
Websocket Updates
| Pull Request | Title |
|---|---|
| #2562 | Fake websocket client to test the node websocket server |
| #2566 | Incremental options for ws confirmation subscription |
| #2634 | Add telemetry response websocket callbacks |
| #2729 | Websocket new_unconfirmed_block |
| #2734 | Websocket notification for RPC work_generate without peers |
| #2774 | Enable WebSocket server by default in Docker image |
CLI Updates
| Pull Request | Title |
|---|---|
| #2579 | Configurable inactive votes cache size |
| #2575 | Add flag for vote_processor capacity and tests |
| #2606 | Launch flag --allow_bootstrap_peers_duplicates |
| #2594 | Allow CLI --config values for inactive node tests |
| #2637 | Read config file for CLI commands |
| #2707 | Add difficulty and multiplier to CLI work generation commands |
| #2719 | CLI compare_rep_weights to compare ledger and hardcoded weights |
| #2725 | CLI command for a frontier confirmation speed test |
| #2749 | Multithreaded --validate_blocks |
| #2769 | Deprecate --batch_size/debug_mass_acitvity CLI options |
| #2794 | CLI commands incorrect ledger cache setup |
Deprecation/Removal
| Pull Request | Title |
|---|---|
| #2555 | Disable UDP by default |
Developer/Debug Options
| Pull Request | Title |
|---|---|
| #2540 | Lower beta network work threshold to 1/64x base |
| #2591 | friendly backtraces in actions |
| #2731 | New stats for elections |
| #2746 | Fix Xcode warnings |
| #2762 | Add cemented block log timings |
| #2791 | Fix insufficient work logging |
| #2793 | Add logging section to rpc config to optionally disable logging |
| #2802 | Clarify election difficulty update log message |
Fixed Bugs
| Pull Request | Title |
|---|---|
| #2527 | Allow rep crawler targets with ephemeral ports |
| #2530 | Remove representatives with closed channels |
| #2546 | Restore max block processor signature verification batch size |
| #2553 | Inactive votes cache confirmation status |
| #2563 | Fix election calling confirm_if_quorum after destruction |
| #2582 | Check against op aborted on secure rpc acceptor shutdown |
| #2593 | Start vote generator for changed winner only if voting is enabled |
| #2609 | [RocksDB] Only delete from unchecked when existence is guaranteed |
| #2648 | Fix wrong number of representatives in confirmation solicitor |
| #2650 | Telemetry results not correctly utilising cache timeouts |
| #2659 | Signature checker blocking fix |
| #2675 | Prevent getting stuck in block processor flush |
| #2674 | Modify inactive cache to prevent multiple insertions for confirmed |
| #2652 | Consistently add conflicting block to election |
| #2696 | Remove assert if a delayed work cache request is not found |
| #2651 | Using relaxed atomics for counts not involved in control flow in conf height processor |
| #2706 | Prevent more rare deadlocks due to races for condition variables |
| #2664 | Incorrect cemented count during conf height algo transition |
| #2723 | Some confirmed block observer callbacks being missed |
| #2733 | Remove invalid uses of epoch_1 work threshold |
| #2744 | Tally votes on conflicting block with no inactive votes |
| #2766 | Votes from local representatives should not be flooded on processing |
| #2767 | Fix previous balance in active_transaction::insert () |
| #2781 | Union std::hash coverage |
| #2782 | Stuck uncemented blocks after heavy load |
| #2796 | Retrieve block when activating dependencies |
| #2799 | Slow test fixes |
| #2800 | Fix open blocks not getting activated through dependencies |
Implemented Enhancements
| Pull Request | Title |
|---|---|
| #2522 | Optionally disable data in responses to telemetry requests with CLI option |
| #2518 | Active_transactions updates blocks when updating difficulty. |
| #2524 | Extend telemetry data with more node versioning details |
| #2528 | Improve initial TCP server keepalive |
| #2512 | Cache genesis block hash in ledger constants |
| #2536 | Cache hash for multiple block->hash () calls |
| #2531 | Bounded memory and redesign in the confirmation height processor |
| #2541 | Handle legacy confirm_req using the aggregator |
| #2521 | Poll all nodes, remove outliers, ddos protection & amend RPC response with endpoint |
| #2543 | Probabilistic network packet filter |
| #2552 | Encapsulating election::confirmed so its implementation can vary. |
| #2548 | Add wallet-processed block to work watcher via the block processor |
| #2554 | [ASAN] Access node through a weak_ptr on distributed_work dtor |
| #2551 | Return created election when adding to active_transactions |
| #2542 | Separate inactive votes cache from gap cache |
| #2557 | Add launch flag --disable_block_processor_unchecked_deletion |
| #2571 | Use only the necessary protocols in UPnP |
| #2559 | Buffer drop policies |
| #2567 | Add GSL-style narrow_cast |
| #2572 | Move back timer comments to header |
| #2544 | Use a different confirmation height algorithm when ledger is almost fully cemented |
| #2574 | Add tests for vote_processor |
| #2534 | Log stable filename |
| #2583 | warnings: Remove some unused locals and captures |
| #2568 | Output stacktrace with custom debug assert |
| #2585 | Remove vote cache & generate new vote if election winner is changed |
| #2573 | Add peer timestamp to telemetry responses |
| #2592 | [RocksDB] Limit write locks to necessary tables |
| #2589 | Reworking confirmation_height.dependent_election test |
| #2590 | Remove dropped_election_cache in preparation for election refactor. |
| #2599 | Block work version |
| #2577 | Minimize work validation calls |
| #2600 | Reduce active mutex locking with election winner details |
| #2602 | Don't use active mutex lock during confirmation solicitor.prepare () |
| #2549 | Aggressive flooding for local blocks |
| #2601 | Block difficulty and work validation cleanup |
| #2605 | Utility: nano::optional_ptr |
| #2608 | Lock before stopping when notifying other threads |
| #2598 | Simplify telemetry data processing |
| #2616 | Update preconfigured_peers comment regarding port |
| #2596 | Attach sideband to block |
| #2614 | Simplify request aggregator mutex lock behavior |
| #2620 | Use the sideband when available in ledger.is_send |
| #2626 | Improve --debug_profile_bootstrap performance |
| #2604 | Update adjusted difficulty in batches |
| #2640 | Read transaction scope in active |
| #2581 | Use attempts list for TCP channels |
| #2646 | Bandwidth considerations following election refactor |
| #2641 | Increase active elections capacity with periodic full checks |
| #2643 | Network duplicate filter for publish messages |
| #2649 | Erase representatives with full queues when adding to confirmation solicitor |
| #2653 | Include requesting telemetry metrics from temporary channels |
| #2570 | Parallelize state block signature verification with block processor |
| #2631 | Delay inactive/gap cache bootstrap start for 30 seconds |
| #2625 | Improve confirmation consistency |
| #2661 | Increase minimum time to log block processing |
| #2665 | Output current function in assert diagnostics |
| #2618 | Sign telemetry messages |
| #2638 | Definitions for work thresholds with epoch_2 |
| #2663 | Check if a vote is for a recently confirmed block |
| #2662 | Move all request aggregator operations out of the mutex hold scope |
| #2610 | Remove telemetry message versions |
| #2505 | Directed block broadcasting for long elections |
| #2603 | Remove peers with different genesis block or invalid telemetry signature |
| #2676 | Optimize mutex access when adding blocks to block processor |
| #2666 | Delay voting for non-priority elections under saturation |
| #2672 | Refactor work thresholds as nano::work_thresholds |
| #2627 | Optimize vote post-processing operations |
| #2686 | Improve automatic frontiers confirmation |
| #2680 | Delay wallet work caching to allow using lower difficulty on demand |
| #2690 | Work version parameter in default_difficulty and use it in more places |
| #2693 | Move excluded_peers to network |
| #2692 | Wrapper for RPC worker tasks |
| #2673 | Epoch open blocks should have corresponding pending entries |
| #2688 | Move vote generator calls into election code |
| #2645 | Rate limiting using token buckets |
| #2694 | Prevent reconnecting to excluded peers with sufficient score |
| #2691 | Active difficulty normalization |
| #2705 | Ensure max_work_generate_difficulty is updated when changing the default difficulty |
| #2669 | Improve telemetry request/response under load |
| #2702 | Vote generator session for batch insertions |
| #2709 | Ensure propagation and removal for the work watcher |
| #2710 | Difficulty updates for elections with multiple blocks |
| #2714 | Improve batching of writes in unbounded conf height processor |
| #2613 | Move TCP messages processing to network threads |
| #2720 | Separate election state for the broadcasting block fallback |
| #2721 | Remove confirmation requests for a new representative |
| #2716 | Release write_guard lock when no longer required |
| #2715 | Allow restarting elections with higher work |
| #2728 | Add active difficulty to node telemetry |
| #2730 | Use a multi-index container to allow fifo queue for pending confirmations |
| #2751 | Serialize telemetry as big endian |
| #2759 | Perform wallet representative action without holding any mutex |
| #2772 | Republishing a vote to principal representatives |
| #2768 | Force node exit if ledger inconsistency in the conf height processor is found |
| #2565 | Push front blocks from unchecked |
| #2784 | Confirmation requests and broadcasts if available vote is for a conflicting block |
| #2778 | Bisected election backtracking |
| #2797 | Check executable paths in load_test |
| #2785 | Sequential voting |
| #2801 | Sequential elections |
Build, Test, Automation, & Chores
| Pull Request | Title |
|---|---|
| #2525 | Define GCC sanitizers builds |
| #2537 | Update beta network bootstrap weights for v21, cutoff 7M |
| #2538 | ASAN error with database transaction tracker json serialization |
| #2547 | BOOST_1.69 |
| #2550 | guard policy setting by version checks |
| #2561 | Disable node.fork_open_flip test on Windows actions |
| #2564 | Update --debug_profile_process CLI test |
| #2556 | Update --debug_profile_bootstrap CLI test |
| #2576 | Fix intermittent node telemetry tests with tsan/valgrind |
| #2584 | tsan: race in telemetry::ongoing_single_request_cleanup |
| #2586 | [TSAN] confirmation_height.cemented_gap_below_receive test |
| #2587 | [TSAN] vote_processor.flush test |
| #2580 | Improve confirmation_solicitor.batches test |
| #2595 | Fix rpc telemetry test timestamps |
| #2597 | Use C++17 locally, C++14 on CI |
| #2607 | CMakeLists backwards compatibility |
| #2612 | Fix intermittent send_node_id_handshake unit test failures |
| #2617 | update url for sourceforge |
| #2622 | Host qt assets on s3 |
| #2623 | [RocksDB] Tests not reading account count from store correctly |
| #2621 | Fix confirmation_height.gap_live intermittent test failure |
| #2624 | confirmation_height.modified_chain test fails on a non-debug build |
| #2615 | tsan fix: rpc.wallet_destroy |
| #2628 | Make confirmation_solicitor.batches more robust under tsan |
| #2630 | Make network.replace_port more robust under tsan |
| #2633 | Add ASSERT_TIMELY |
| #2636 | split docker artifacts to separate job |
| #2632 | Fix request_aggregator unit tests |
| #2647 | gather sha256 hashes of artifacts and upload to s3 with artifacts |
| #2655 | Update tick count in timer::update |
| #2656 | Fix node.aggressive_flooding |
| #2660 | typo on windows sha256 Out-File |
| #2670 | clang included now |
| #2677 | Fix intermittent wallet.work_watcher_update failure |
| #2682 | Fix intermittent failure in active_transactions.confirmation_consistency |
| #2687 | set timeout to 1hr to catch tests that hang |
| #2695 | Fix qt test wallet.seed_work_generation |
| #2697 | updates for fuzzer |
| #2699 | Fix qt tests failing to click radio buttons |
| #2711 | [TSAN] lock order inversion in active transactions / wallet |
| #2712 | Add node sequence for tests |
| #2708 | Fix failure in ledger.work_validation due to random work being above threshold |
| #2700 | Add Security Policy file |
| #2698 | [TSAN] start_time data race in bootstrap_client |
| #2611 | Preparation for building with shared boost |
| #2717 | Fix logic in active_transactions.prioritize_chains test |
| #2722 | changelog_generator refactored as changelog.py |
| #2732 | record_rep_weights to py3 |
| #2735 | Allow starting more that max_peers_per_ip test nodes |
| #2737 | Fix intermittently failing rpc.confirmation_height_currently_processing test |
| #2738 | Fix intermittent node_telemetry.remove_peer_different_genesis test |
| #2739 | Fix rpc.wallet_history failures |
| #2742 | Fix system.generate_send_new intermittent failures |
| #2745 | Fix intermittently failing conflicts.adjusted_multiplier test |
| #2743 | Fix node.fork_invalid_block_signature intermittent failures, re-enable on windows CI |
| #2748 | Fix minor test-specific intermittent failures |
| #2750 | Fix network.tcp_no_connect_excluded_peers test failure |
| #2757 | [TSAN] race for system in test websocket.bootstrap_exited |
| #2760 | Fix intermittent failure in test wallet.work_cache_delayed |
| #2779 | Set boost min to 1.69 |
| #2783 | enable shared boost for tests |
| #2786 | [TSAN] Fix off-by-one in socket.drop_policy test |
| #2790 | use full cache for PR's requesting modules not currently specified in… |
| #2792 | update bundled FindBoost.cmake |
| #2789 | Epoch2 signer |
| #2803 | add label "logging" to Developer/Debug Options Sections |