v0.3.0

General release information

Highlights of this release:

• added solo mining mode to pool_sv2, allowing payout routing directly from user_identity patterns
• major refactor of jd-server (JDS), together with multiple jd_client_sv2 improvements around configurable JD mode, token allocation
• expanded and hardened translator_sv2 / tProxy with a new tproxy mode, better concurrent channel handling, more robust no-upstream behavior, and improved hashrate reporting
• improved operational tooling across the apps with shutdown APIs, broader monitoring feature support, a better global endpoint, and new blocks_found Prometheus metrics
• hardened monitoring with fixes for snapshot-cache DoS risk, redundant metrics removal, and cleaner behavior when vardiff is disabled
• upstream connections now support hostname resolution with timeouts, and the Docker setup now relies on Docker DNS instead of static IPs
• improved protocol correctness and shutdown flow across pool_sv2, jd_client_sv2, and translator_sv2, including share acceptance on upstream acknowledgement and cancellation-token-based shutdown coordination
• expanded test and release coverage with new monitoring/integration tests, a dedicated tests.yaml workflow, stratum-core freshness checks, and improved publishing of app crates

What's Changed

• Get bitcoin-capnp-types from crates.io and publish apps on release by @GitGab19 in #208
• Remove check alive check from spawn job keepalive loop method by @Shourya742 in #213
• Add btrust logo to readme by @pavlenex in #218
• (Tproxy): log on no upstream channel instead of shutdown by @Shourya742 in #217
• add SHUTDOWN_BROADCAST_CAPACITY constant by @plebhash in #214
• Initialize downstream channel with eventual future_jobs in AGGREGATED mode by @GitGab19 in #231
• Add tproxy mode by @Shourya742 in #229
• Add machete to CI by @Shourya742 in #233
• Add clean_queue method to Sniffer by @xyephy in #226
• fix(channels): Update channel nominal hashrate from downstream vardiff estimate by @gimballock in #245
• Migrate tproxy to dashmap by @Shourya742 in #228
• remove channel from extended channels in ChannelManager after it receives a CloseChannel from the Sv1Server by @GitGab19 in #244
• remove upstream_extended_channel from tProxy's ChannelManager and use AGGREGATED_CHANNEL_ID by @GitGab19 in #246
• add .dockerignore by @lucasbalieiro in #250
• fix shares_submitted tracking in server monitoring for tProxy and JDC by @GitGab19 in #254
• fix(monitoring): remove redundant sv2_client_channel_shares_per_minute metric by @gimballock in #252
• Move test suite to tests.yaml workflow (Fixes #235) by @therohityadav in #251
• Add implicit SetupConnection handling to MockDownstream and MockUpstream by @xyephy in #191
• update downstream_channel_id_and_job_id_to_template_id mappings in handle_new_template by @GitGab19 in #259
• fix(monitoring): Eliminate DoS vulnerability via snapshot cache by @gimballock in #193
• Fix: JDC sends bad SetupConnection.Success.flags (#266) by @therohityadav in #270
• fix(monitoring): make nominal_hashrate Optional and omit metrics when vardiff disabled by @gimballock in #263
• replace tokio::sync::broadcast as the main shutdown notification system by @plebhash in #225
• improve global/ API endpoint by @GitGab19 in #277
• JDC + tProxy defer channels_sv2::client share acceptance to upstream acknowledgement by @plebhash in #283
• feat(monitoring): expose blocks_found metric via Prometheus by @gimballock in #278
• fix JDC extranonce ranges by @plebhash in #284
• fix(pool): set correct SetupConnection.Success.flags instead of echoing client flags by @average-gary in #296
• fix(tproxy): report SV1 downstream hashrate when vardiff is disabled by @gimballock in #291
• Make the server not hang the application when the handshake is incomplete. by @Shourya742 in #290
• Set JD Mode from config by @Shourya742 in #180
• add retry police to the integration test pool_does_not_hang_on_no_handshake by @lucasbalieiro in #306
• add monitoring feature to jd-client, translator, and pool by @GitGab19 in #307
• remove time sensitive assertion from snapshot_cache::tests::test_snapshot_refresh by @lucasbalieiro in #302
• Cache shares JDC by @Shourya742 in #174
• feat: add hostname resolution for upstream connections by @average-gary in #286
• make the docker setup rely on docker DNS instead of using static IPs by @lucasbalieiro in #316
• fix(config): make server_id, supported_extensions, required_extensions optional by @average-gary in #294
• Add shutdown apis to apps by @Shourya742 in #315
• improve JDC token allocation by @plebhash in #314
• sniffer: add assert_message_not_present_for for reliable negative assertions by @xyephy in #253
• Make concurrent Open channel request handling in Tproxy better by @Shourya742 in #312
• add stratum-freshness job to lockfiles workflow by @GitGab19 in #327
• JDC start_downstream_server breaks loop on fallback by @plebhash in #334
• Add unit and integration tests for monitoring module by @gimballock in #281
• refresh stratum-core lockfiles by @plebhash in #339
• add solo mining mode to the pool app by @lucasbalieiro in #321
• refresh stratum-core lockfiles by @Shourya742 in #341
• JDS refactor by @plebhash in #299
• re-enable publishing of JDS after refactor by @plebhash in #344
• client share accounting refinement by @plebhash in #328
• Install capnp in release-apps workflow and remove jd-server from binary-release workflow by @GitGab19 in #346
• Fix versions by @GitGab19 in #347
• Remove one keyword in tProxy Cargo.toml by @GitGab19 in #348

New Contributors

• @pavlenex made their first contribution in #218
• @gimballock made their first contribution in #245
• @therohityadav made their first contribution in #251
• @average-gary made their first contribution in #296

Full Changelog: v0.2.0...v0.3.0