What's Changed

Networking overhaul

Significant portions of the networking structure have been rewritten to improve reliability, maintainability, and performance. * Merge server_socket in to tcp_listener by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4354 * Preliminary network class cleanup by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4490 * Reorganize tcp_listener by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4515 * Networking cleanup continued by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4495 * Fix tcp_server constructor by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4499 * Cleanup strand binding in socket class by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4498 * Keep io context running when stopping test system by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4525 * Remove channel comparison functions by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4500 * Rework handshake visitor by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4504 * Store io_context as shared pointer by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4506 * Keep weak pointer to node in socket objects by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4542 * Use strand for socket operations by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4576 * Use a dedicated thread for tcp listener by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4523 * Peer cache by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4574 * Use coroutines in tcp listener by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4581 * Stop using boost::asio::ip::udp::endpoint by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4585 * Run UPNP port mapping on a dedicated thread by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4591 * Remove temporary channels by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4595 * Replace tcp_message_manager by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4609 * Internal node io context by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4618 * Avoid creating temporary inproc channels by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4625 * Transport classes cleanup by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4651 * Differentiate between node IO runners and general IO thread roles by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4643 * Remove tls support by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4646 * Fix stopping of bootstrap workers by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4667 * Incremental backoff for local_block_broadcaster by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4662 * Legacy bootstrap throttling by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4669

Fair queuing

• Fair queuing for block processor by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4476
• Fair queuing for vote processor by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4536
• Fair queuing for bootstrap server by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4584
• Wait until fair queue source drains before removal by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4597
• Fair queuing for request aggregator by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4598

Logging and stats overhaul

• Logging overhaul by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4375
• Avoid printing warning about cerr and colors in default cli mode by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4400
• Tracing by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4412
• Fix typo in ipc session_id debug log by @gr0vity-dev in https://github.com/nanocurrency/nano-node/pull/4448
• Allow easy printing ranges of objects by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4488
• Log improvements by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4580
• Stats overhaul by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4583
• Stats logging by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4596
• Enum utils by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4601

Election/block handling improvements

• Add a bucket that lands in the range typically used by faucets / tipping services. by @gr0vity-dev https://github.com/nanocurrency/nano-node/pull/4661
• Remove atomic enum election::state_m and instead require locking election::mutex. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4318
• Remove block_processor::flush function by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4404
• Remove gap cache by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4422
• Move block observer logic into active_transactions by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4421
• Adjust election block rebroadcasting by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4423
• Blockprocessor context by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4424
• Cleanup unused broadcast_confirm_req variants by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4440
• Local block broadcaster by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4454
• Ledger block abstraction by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4458
• Improve block field functions by accessing sideband information internally by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4465
• Remove ledger::block_destination and use block::destination by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4478
• Remove usages of frontiers table from ledger_processor block checks by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4460
• Simplify the nano::ledger::successor function to make its implementation more obvious. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4484
• Election vote result enum by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4497
• Election age statistics by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4537
• Limit batch size for block processor by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4655

Rep handling overhaul

• Rep crawler overhaul by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4449
• Dedicated rep_tiers class by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4471
• Multithreaded request aggregator by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4469
• Changed description of request_aggregator_threads by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4477
• rep_weights part 1 - Add data store for representative weights by @simpago in https://github.com/nanocurrency/nano-node/pull/4482
• rep_weights part 2 - Store representative weights in database by @simpago in https://github.com/nanocurrency/nano-node/pull/4483
• rep_weights part 3 - Add mininum weight to representative cache by @simpago in https://github.com/nanocurrency/nano-node/pull/4485
• Convert rep_weights mutex to a shared_mutex since the majority of time it's being read by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4628
• Track rep query response time by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4658
• Use memory weight instead of exact weight when computing wallet reps. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4555

Vote handling improvements

• Enable large votes by default where support was added in V26 https://github.com/nanocurrency/nano-node/pull/4350 by @clemahieu https://github.com/nanocurrency/nano-node/pull/4683
• Store full votes in vote cache by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4518
• Vote generator write queue by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4556
• Multithreaded vote processor by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4600
• Separate vote_router from active_transactions by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4607
• Add 'rebroadcasted' flag to confirm_ack message by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4621
• More vote cache optimizations by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4629
• Address performance regression in vote_cache::top by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4627
• Use read/write transaction variant in vote generator by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4639
• Offload vote cache lookup to a separate thread by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4631
• Optimize vote_cache::collect_container_info by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4644
• Reduce vote generator max batch size by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4650 CI/GitHub improvements
• Update clang-format by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4414
• Analyze core dumps on test failure by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4430
• Sanitizer workflow for macOS by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4431
• Separate leak sanitizer from ASAN run by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4435
• Reintroduce RC builds for releases branches by @gr0vity-dev in https://github.com/nanocurrency/nano-node/pull/4381
• Ignore chacha.hpp ubsan errors by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4538
• Enable reporting TSAN errors by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4539
• disable rpm builds by @gr0vity-dev in https://github.com/nanocurrency/nano-node/pull/4554
• Add NANO_TRACING argument to Dockerfile by @gr0vity-dev in https://github.com/nanocurrency/nano-node/pull/4603
• During release process, create pull request to increment major version on instead of a direct commit by @gr0vity-dev in https://github.com/nanocurrency/nano-node/pull/4380
• Add Continuous Test Results as GitHub Badge by @gr0vity-dev in https://github.com/nanocurrency/nano-node/pull/4635
• Add flamegraph generation in CI build by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4638
• Introduce nano-nightly dockerhub registry for live network builds by @gr0vity-dev in https://github.com/nanocurrency/nano-node/pull/4513

3rd party library updates

• Update minimum OSX deployment target to 13.3 which is required by the OSX 14.4 SDK. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4464
• Update googletest to v1.14 by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4503
• Update rocksdb to 9.2.2 by @RickiNano https://github.com/nanocurrency/nano-node/pull/4652

Test improvements

• very minor assert improvement by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4360
• Fix conflicts.add_two unit test by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4361
• Improve assert statements of failing test to see why it is failing by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4363
• Move rpc_context and test_response classes into their own files. by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4370
• Use assert_eq and assert_timely_eq by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4372
• Assert conversions part 2 by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4376
• Fix for node.fork_publish_inactive by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4382
• Fixing a race condition in active_transactions.fork_replacement_tally by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4385
• Fix rpc receivable unconfirmed and rpc.accounts_receivable_confirmed by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4387
• Some helpful comments about unit test socket_timeout.connect by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4389
• Fix active_transactions.confirm_frontier by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4386
• Simplify system::get_available_port() by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4388
• Remove rule from code inspector script that enforces nano locks by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4395
• Fix nano timed locks by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4396
• Fix bootstrap unit tests by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4383
• Fix failing TEST (active_transactions, fifo) by @gr0vity-dev in https://github.com/nanocurrency/nano-node/pull/4394
• Fix unit test node.search_receivable_confirmed by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4408
• Fix active transactions vote replays by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4401
• Clean up node.fork_multi_flip test. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4411
• Remove github cache saving and restoring from unit tests by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4399
• Update macOS runner by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4415
• Separate node.expire test by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4417
• Re-enable unit test active_transactions.confirm_new by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4438
• Minor unused test code bugfix (nano::test::account_height) by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4466
• Add work_pool to nano::test::context::ledger_context by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4494
• Fix pruning tests that did not confirm blocks before pruning. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4532
• Fix and re-enable unit test rpc.send_epoch_2 by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4551
• Fix and re-enable unit test rpc.wallet_history by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4552
• Fix race condition in test election_scheduler.no_vacancy by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4570
• Rename to core_test_main to entry for consistency by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4572
• Test daemon interrupt handling by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4563
• Fix a TSAN issue in active_transactions.confirm_new by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4582
• Fix unit test bootstrap_processor.lazy_pruning_missing_block by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4575
• Improve unit test telemetry.basic by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4589
• A system test to exercise the rpc stop command by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4573
• Fix rpc.block_confirm_confirmed by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4608
• Directly confirm blocks within unit tests rather than starting/forcing elections by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4605
• Fix rare race in request_aggregator.one_update by @gr0vity-dev in https://github.com/nanocurrency/nano-node/pull/4622
• Fix node.block_confirm test by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4666

Miscellaneous improvements

• Remove ledger_walker by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4357
• Remove unused includes by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4349
• Bound depth of hinted scheduler block traversal by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4359
• Search for receivables as a wallet action, rather than a background node task. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4365
• Build fix for thread_runner.cpp with NANO_ASIO_HANDLER_TRACKING enabled by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4373
• Fix bug/warning about temporary object lifetime by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4374
• Fix for queuing wallets action which doesn't go through node.wallets by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4377
• Applying [[noreturn]] attribute to asset_internal by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4392
• Convenience function for block_or_pruned_exists by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4393
• Remove cleanup functions related to unchecked blocks. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4384
• Improve enum conversions by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4397
• Use make_final_vote function by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4407
• Set maximum unchecked blocks in config by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4342
• Use the make_vote function in unit tests by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4410
• Remove unnecessary unlock/lock of a mutex by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4416
• Allow overriding of default application path directory by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4418
• Store pointer to boost::asio::signal_set and cancel when ipc_server::stop is called. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4367
• Initiating Beta Reset to Address Large Ledger Size by @gr0vity-dev in https://github.com/nanocurrency/nano-node/pull/4426
• Update the beta genesis hash to the new one, fixes the systests by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4427
• Link nano_lib with boost::property_tree which is at least referenced by nano/lib/blocks.hpp by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4432
• Use erase_if pattern by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4429
• Change collect_container_info to be a member of nano::block_processor by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4434
• Remove overload of ledger::amount that was only used in one test and didn't have a meaningful function. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4436
• Include thread header in threading.hpp by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4439
• Clean up ledger::process return value. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4442
• Remove node::rep_block function that was only used in tests. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4444
• Documentation and code clarity improvements to work_pool unit tests by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4445
• Convert ledger::process to take a shared_ptr argument instead of a block reference. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4443
• Introduce opencl_work_func_t to make code more readable by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4446
• Merge v26.1 commits into develop by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4453
• Use start/stop pattern in vote_processor by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4455
• Remove unused ledger::could_fit by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4457
• Do not return node_id private key in RPC call by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4459
• Ledger query simplification by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4461
• Blocks.hpp recompile time reduction by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4468
• fix some typos by @cuinix in https://github.com/nanocurrency/nano-node/pull/4467
• Use start/stop pattern in block_processor by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4462
• Reduce recompile time of ledger.hpp. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4475
• Remove pragma from pending_info.cpp by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4480
• Remove unused function ledger::root_exists by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4481
• Convert store::pending::get to return an optional rather than using an out-argument and returning an error code. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4479
• Fix build error with new optional pending_info by @simpago in https://github.com/nanocurrency/nano-node/pull/4487
• Add functions to allow pending_key objects to be in containers. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4489
• Add operator* to store::iterator. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4493
• Adding abstraction of iteration over receivable entries by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4496
• Replace some additional direct usages of store.pending with calls to ledger::pending_info by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4501
• Remove final vote canary code as final votes are now always enabled. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4502
• Fix active_transactions missed notifications by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4505
• Block cemented callback simplify by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4508
• Header reduction for election, vote_generator, vote_spacing, and active_transactions by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4509
• Return per hash vote result by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4510
• Config option for disabling hinted scheduler by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4512
• Rename block::hash(blake2b_state&) overload to block::generate_hash(blake2b_state&) by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4514
• Remove debug_assert for a tautology which was causing a warning. uint8_t can't be larger than 256 by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4517
• Fix missing vote_code enumeration for websockets. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4516
• Apply the count parameter in json_handler::accounts_receivable() by @simpago in https://github.com/nanocurrency/nano-node/pull/4520
• Improve write_database_queue::wait description and add [[nodiscard]] by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4522
• Reimplement and simplify confirmation_height_processor by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4519
• Remove frontiers table from ledger by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4425
• Add missing lib/logger.hpp include. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4524
• Fixing shared->unique assignment and no return in control flow. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4529
• Encapsulate ledger cache counts by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4528
• Use ledger::confirm by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4531
• Removing unconfirmed_frontiers command line option. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4530
• RPC endpoint for election statistics by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4533
• Adding const to ledger::weight* functions. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4534
• Move write database queue by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4535
• Move inactive_node and node_wrapper into their own files by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4541
• Remove conditional compiling. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4544
• map::iterator is a dependent typename and needs the typename keyword. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4545
• Fix intermittent failure of request_aggregator.split by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4546
• Fixes TSAN issues. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4547
• Bugfix add_outer_node(), it should be added to disconnected set of nodes by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4548
• Max election age precision by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4549
• Documentation for pending key and info classes and some other improvements whilst investigating by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4553
• Move node::receive_confirmed to wallets::receive_confirmed by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4557
• Consistent log capitalization by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4561
• Clean up and remove recursive transaction usage by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4559
• Constexpr check NANO_ASIO_HANDLER_TRACKING by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4562
• Signal manager thread role by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4565
• Fix race conditions in accessing election confirmation counters by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4564
• Generate indented toml config files for improved legibility by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4558
• Creating nano::secure::transaction type by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4543
• Cleaner daemon stopping by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4560
• Start/stop pattern for unchecked_map by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4577
• Feature: disable_activate_successors flag by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4586
• Async task helper by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4590
• Introduce ledger confirmed_set/any_set classes to separate confirmed-only and confirmed/unconfirmed operations on the ledger by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4486
• Node configuration auto updater by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4579
• Style fix, pass transaction as first argument. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4592
• Minor fixes by @dsiganos in https://github.com/nanocurrency/nano-node/pull/4594
• Remove block_process_timeout by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4599
• Build fixes. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4602
• Add comment/warning to node::block_confirmed_or_being_confirmed functions by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4540
• Introduce active_transactions_config by @gr0vity-dev in https://github.com/nanocurrency/nano-node/pull/4604
• Move recently_cemented_cache and recently_confirmed_cache to their own files. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4606
• Fix race condition between election creation and vote_cache triggering by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4610
• Fixed three compiler warnings (C26498) by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4617
• Configuration and environment variable improvements by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4613
• Remove active_elections::trim by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4611
• Scheduler test cleanup by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4619
• Simplify system.add_node checks by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4614
• Add cli support for disable_max_peers... node flags by @gr0vity-dev in https://github.com/nanocurrency/nano-node/pull/4620
• Clean up priority scheduler bucket look ups by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4632
• Move confirmation processing on to worker threads rather than io threads. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4634
• Fix build errors converting and comparing to int. by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4633
• Optimize election scheduler activate function by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4636
• Use deque rather than vector to support large initialization sequences by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4641
• Add environment variable NANO_MEMORY_INTENSIVE by @clemahieu in https://github.com/nanocurrency/nano-node/pull/4640
• Optimize active_elections::notify_observers by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4637
• Optimize cemented callbacks by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4642
• Fix rocksdb migration by @RickiNano in https://github.com/nanocurrency/nano-node/pull/4645
• Bundle ledger transaction and write guard into a single object by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4653
• Increase beta network connection limits by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4657
• Avoid bootstrap notifications from live traffic by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4463
• Limit number of rocksdb background threads by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4660
• Do not wait for cancellation signal by @pwojcikdev in https://github.com/nanocurrency/nano-node/pull/4664

Full Changelog: https://github.com/nanocurrency/nano-node/compare/V26.1...V27.1