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RELEASE-NOTES.md

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0.9.0 (Sep 30 2021)

IMPORTANT: This release contains major changes, please read carefully!

The four main things to watch out for:

  • Database schema changed - this will cause reindex after upgrade.
  • mainnet subdirectory was renamed to bitcoin, you should delete mainnet after successful reindex.
  • We now use bitcoin p2p protocol to fetch blocks - some configurations may not work.
  • Trace log level now logs much more information - make sure it's not used in production.

See upgrading section of our docs to learn more.

Full list of changes:

  • Add electrs logo (#510)

0.9.0-rc2 (Sep 23 2021)

  • Prevent panic during logging of p2p messages (#490)
  • Don't collect process' Prometheus metrics by default (#492)
  • Support initial sync resume (#494)

0.9.0-rc1 (Sep 17 2021)

  • Fix incorrect ordering of same-block transactions (#297)
  • Change DB index format and use Zstd compression (instead of Snappy)
  • The database will be reindexed automatically when it encounters old version (#477)
  • Don't use bitcoind JSON RPC for fetching blocks (#373)
  • Use p2p protocol for headers and block fetching only. This is safer than reading blk*dat files and faster than JSON RPC.
  • Support Electrum JSON RPC batching and errors
  • Use rust-bitcoincore-rpc crate
  • Increase default index_lookup_limit to 200
  • Implement 'blockchain.scripthash.listunspent' RPC (#475)
  • Update RocksDB to 6.11.4 (#473)
  • Allow logging configuration via RUST_LOG environment variable (using env_logger)

0.8.12 (14 Sep 2021)

  • Fail if cookie is specified (#478)
  • Move usage in README up and recommend our guide (#463)
  • A bunch of improvements to issue templates (#462)

0.8.11 (18 Aug 2021)

  • Update dependencies (#401, #402)
  • Add python example in RPC examples (#415, #417)
  • Add regtest and signet networks in examples (#425)
  • Clippy fixes (#430)
  • CI fixes (#437, #438, #441)
  • Update relevant versions (#450)
  • Drop unused compression algorithms for RocksDB

0.8.10 (14 May 2021)

0.8.9 (19 Mar 2021)

  • Use non-batched RPC to reduce bitcoind memory usage (#373)
  • Fix inverted logic of deprecation (#379)
  • Ignore individual mempool transaction fetch fails (#381)
  • Increase default wait_duration_secs to 10s (#384)

0.8.8 (22 Feb 2021)

  • Deprecate --cookie configuration (@Kixunil)
  • Update dependencies (@Kixunil)
  • Improve documentation (@Kixunil)

0.8.7 (15 Jan 2021)

  • Support signet (#239)

0.8.6 (25 Nov 2020)

  • Fix Electrum fee histogram duplicates
  • Fix Electrum protocol negotiation
  • Update multiple crates (@kixunil): lru, prometheus, dirs-next
  • Support Rust 1.41.1 (for Debian stable)
  • Update bitcoin crate (@dr-orlovsky)
  • Fix a deadlock when shutting down (@kixunil)

0.8.5 (1 July 2020)

  • Add a 'blocks_dir' option (@darosior)
  • Return fee for unconfirmed transactions history (for Electrum 4.0)
  • Handle SIGUSR1 for external notifications

0.8.4 (3 June 2020)

  • Update to latest rust-bitcoin (@dr-orlovsky)
  • Fix deadlock and refactor RPC threading (@Kixunil)

0.8.3 (30 Jan 2020)

  • Fix memory leak (@champo)

0.8.2 (6 Dec 2019)

  • Downgrade rust-rocksdb to 0.12.2 (#193)

0.8.1 (20 Nov 2019)

  • Allow setting --cookie-file path via configuration (@Kixunil)
  • Bump rust-rocksdb to 0.13.0, using RockDB 6.2.4

0.8.0 (28 Oct 2019)

  • Use configure_me instead of clap to support config files, environment variables and man pages (@Kixunil)
  • Don't accept --cookie via CLI arguments (@Kixunil)
  • Define cache size in MB instead of number of elements (@dagurval)
  • Support Rust >=1.34 (for Debian)
  • Bump rust-rocksdb to 0.12.3, using RockDB 6.1.2
  • Bump bitcoin crate to 0.21 (@MichelKansou)

0.7.1 (27 July 2019)

  • Allow stopping bulk indexing via SIGINT/SIGTERM
  • Cache list of transaction IDs for blocks (@dagurval)

0.7.0 (13 June 2019)

  • Support Bitcoin Core 0.18
  • Build with LTO
  • Allow building with latest Rust (via feature flag)
  • Use iterators instead of returning vectors (@Kixunil)
  • Use atomics instead of Mutex<u64> (@Kixunil)
  • Better handling invalid blocks (@azuchi)

0.6.2 (17 May 2019)

  • Support Rust 1.32 (for Debian)

0.6.1 (9 May 2019)

  • Fix crash during initial sync
  • Switch to signal-hook crate

0.6.0 (29 Apr 2019)

  • Update to Rust 1.34
  • Prefix Prometheus metrics with 'electrs_'
  • Update RocksDB crate to 0.12.1
  • Update Bitcoin crate to 0.18
  • Support latest bitcoind mempool entry vsize field name
  • Fix "chain-trimming" reorgs
  • Serve by default on IPv4 localhost

0.5.0 (3 Mar 2019)

  • Limit query results, to prevent RPC server to get stuck (see --txid-limit flag)
  • Update RocksDB crate to 0.11
  • Update Bitcoin crate to 0.17

0.4.3 (23 Dec 2018)

  • Support Rust 2018 edition (1.31)
  • Upgrade to Electrum protocol 1.4 (from 1.2)
  • Let server banner be configurable via command-line flag
  • Improve query.get_merkle_proof() performance

0.4.2 (22 Nov 2018)

  • Update to rust-bitcoin 0.15.1
  • Use bounded LRU cache for transaction retrieval
  • Support 'server.ping' and partially 'blockchain.block.header' Electrum RPC

0.4.1 (14 Oct 2018)

  • Don't run full compaction after initial import is over (when using JSONRPC)

0.4.0 (22 Sep 2018)

  • Optimize for low-memory systems by using different RocksDB settings
  • Rename --skip_bulk_import flag to --jsonrpc-import

0.3.2 (14 Sep 2018)

  • Optimize block headers processing during startup
  • Handle TCP disconnections during long RPCs
  • Use # of CPUs for bulk indexing threads
  • Update rust-bitcoin to 0.14
  • Optimize block headers processing during startup

0.3.1 (20 Aug 2018)

  • Reconnect to bitcoind only on transient errors
  • Poll mempool after transaction broadcasting

0.3.0 (14 Aug 2018)

  • Optimize for low-memory systems
  • Improve compaction performance
  • Handle disconnections from bitcoind by retrying
  • Make blk*.dat ingestion more robust
  • Support regtest network
  • Support more Electrum RPC methods
  • Export more Prometheus metrics (CPU, RAM, file descriptors)
  • Add scripts/run.sh for building and running electrs
  • Add some Python tools (as API usage examples)
  • Change default Prometheus monitoring ports

0.2.0 (14 Jul 2018)

  • Allow specifying custom bitcoind data directory
  • Allow specifying JSONRPC cookie from commandline
  • Improve initial bulk indexing performance
  • Support 32-bit systems

0.1.0 (2 Jul 2018)