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.

0.16.5

Removed

• Remove concurrency from xpub balance requests to prevent RocksDB segfaults.

0.16.4

Removed

• Remove concurrency from requests using iterators to prevent RocksDB from segfaulting.

0.16.3

Added

• Debugging information for web API.

0.16.2

Changed

• Debugging disabled by default (use --debug to enable).

0.16.1

Added

• Cache mempool transactions.
• Improve initial syncing performance.

0.16.0

Added

• Orphan transaction support.
• Full address balance cache in RocksDB.
• Full unspent output cache in RocksDB.

Changed

• Significantly refactor code.
• Move web stuff to its own module.
• Change types related to databases.
• Make xpub balance, transaction and unspent queries fetch data in parallel.

0.15.2

Added

• Internal data types to support orphan transactions.

Changed

• Do not spam block actor with pings.
• Fix balance/unspent cache not reverting when importing fails.
• Fix transaction sorting algorithm not including transaction position information.
• Fix conflicting mempool transaction preventing block from importing.

0.15.1

Changed

• Fix duplicate coinbase transaction id bug.

0.15.0

Removed

• PreciseUnixTime data type no longer exists.

Changed

• Use Word64 for Unix time representation.
• Data model now uses simplified Unix time representation.

0.14.9

Added

• Last external/change index information to XPubSummary object.

0.14.8

Added

• Endpoint for xpub summaries.
• Endpoints for full transactions.
• Ability to query by offset/limit.
• More API documentation.

0.14.7

Added

• Debug information for publishTx.

Changed

• Transaction publishing no longer requests mempool.
• Fixed serialization for TxId freezing the entire program by infinitely recursing.

0.14.6

Changed

• Enable full threading again as it was deemed not responsible for the freezing behaviour.

0.14.5

Changed

• Enable threading but leave it at a single thread to be able to open more than 1024 files.

0.14.4

Changed

• Target LTS Haskell 13.20 and disable threading in new attempt to fix freezing bug.

0.14.3

Changed

• Remove -O2.

0.14.2

Changed

• Target LTS Haskell 12.26 to attempt to fix freezing bug.

0.14.1

Added

• Extra debugging around code that freezes.

Changed

• Bump dependency on haskoin-node.

0.14.0

Removed

• Dump slow protobuf serialization.

Added

• Add custom serialization.
• Extra debug logging.

Changed

• Bump haskoin-core nad haskoin-node.

0.13.1

Changed

• Bump haskoin-node in stack.yaml.
• Do not send empty getdata messages.

0.13.0

Added

• Primitive content negotiation for web exceptions.
• Protobuf support for errors.
• Protobuf support for tranasction ids.

Changed

• Protobuf format changed in non-backwards-compatible manner for transaction ids.

0.12.0

Added

• Support for binary serialization using Protocol Buffers.
• New endpoints for binary raw transactions (not hex-encoded).

Changed

• Services field now a hex string instead of a number to avoid overflowing signed 64-bit integer.
• Flatten list of block data objects when responding to request for multiple block heights.
• Errors now reported in plain text without container JSON object.
• Transaction broadcasts are responded to with transaction id in plaintext hex (no JSON).
• Remove database snapshots to improve performance.

0.11.2

Changed

• Fix duplicate mempool transaction announcements in event stream.

0.11.1

Removed

• Removed latest block time check.

0.11.0

Changed

• Improve post transactions endpoint.

0.10.1

Changed

• Fix bug where transaction lists from multiple addresses would sort incorrectly.
• Address gap reduced to 20.

0.10.0

Removed

• Remove addresses from transaction lists.
• No longer use container objects for xpub transactions.

0.9.3

Added

• Permissive CORS headers to allow queries from any domain.
• Improved documentation using real-world examples from the BCH testnet.

0.9.2

Added

• HTTP JSON API switch to turn off transaction list when retrieving blocks.

0.9.1

Added

• Total block fees.
• Total block outputs.
• Block subsidy.

Changed

• Do not consider the blocks less one block away from headers as out of sync in health check.
• Health check now returns HTTP 503 when not OK or out of sync.

0.9.0

Added

• Version to health check output.
• Block weight for segwit.
• Transaction weight for segwit.

0.8.1

Added

• Health check endpoint.

0.8.0

Added

• Limits and skips.
• Add timestamps to transactions.
• Add transaction count to address balance object.
• Add Merkle root to block data.
• Total funds received by an address now shows up in balance.
• Balances for any address that ever had funds show up in xpub endpoints.

Changed

• Data model update.
• Performance improvement for xpub calls.
• Transactions are returned in reverse mempool/block order (highest or most recent first).
• Balance objects do not get deleted from database ever.

0.6.9

Changed

• Reduce number of coinbase checks to 10,000 ancestors.

0.6.8

Changed

• Further optimize coinbase after height checks.

0.6.7

Changed

• Impose restrictions on recursion for coinbase after height checks.

0.6.6

Added

• Check whether a transaction can be traced back to a coinbase after certain height.

0.6.5

Changed

• Delete transactions in reverse topological order when reverting a block.

0.6.4

Changed

• Do not fail silently when importing orphan transactions into the mempool.

0.6.3

Changed

• Dummy release to bump haskoin-node in stack.yaml.

0.6.2

Changed

• Correct bug where coinbase transactions weren't properly flagged.

0.6.1

Changed

• Compatibility with Bitcoin Cash hard fork.
• Various bug fixes.

0.6.0

Added

• Address balance cache in memory.

Changed

• Simplify data model further.
• Fix bug importing outputs with UTXO cache.
• Unspent balances cannot be negative.

0.5.0

Added

• Add UTXO cache in memory.
• Get transactions with witness data in segwit networks.

Changed

• Paths for derivations in xpubs is a list and no longer a string.
• Various bug fixes.

0.4.2

Removed

• Remove extended public key itself from output of relevant endpoints to save bandwidth.

0.4.1

Changed

• Fix bug when deleting coinbase transactions.
• Extended public key API support.

0.4.0

Changed

• Generate events for mempool transactions.
• Respond with entire block data when querying blocks by height.

0.3.1

Changed

• Do not import transactions to mempool while not synced.
• Only sync mempool against a single peer.
• Allow duplicate transactions to fix re-introduced sync bug.

0.3.0

Added

• Update dependencies.
• Keep orphan blocks and deleted transactions in database.
• Add a mainchain field for block data and a deleted field for transactions.
• Stream records for performance.
• Show witness data for transaction inputs in SegWit network.
• Support RBF in SegWit network.

Changed

• Refactor all data access code away from actor.
• Refactor import logic away from actor.
• Abstract data access using typeclasses.
• Implement data access using clean layered architecture.
• Make most of import logic code pure.
• Database now in db as opposed to blocks directory.
• Use latest haskoin-node.

Removed

• Remove some data from peer information output.
• Remove full transaction from address transaction data.
• Remove limits from address transaction data.
• Remove block data from previous output.
• Remove spender from JSON response when output not spent.
• Remove block hash from block reference.

0.2.3

Removed

• Do not send transaction notifications if a block is being imported.

0.2.2

Added

• Peer information endpoint.

Changed

• Update haskoin-node.

0.2.1

Changed

• Fix tests

0.2.0

Added

• Documentation everywhere.
• Ability to retrieve address transactions.

Changed

• New versions of NQE and Haskoin Node upstream.
• Improve and simplify API.
• Multi-element endpoints return arrays of arrays.
• Database snapshots for all queries are now mandatory.

Removed

• Retrieving unspent and spent outputs for an address.
• Redundant API endpoints for multiple elements.

0.1.3

Changed

• Fix a bug with transaction notifications.
• Improve handling orphan transactions.

0.1.2

Changed

• Specify dependencies better.

0.1.1

Changed

• Dependency secp256k1 is now secp256k1-haskell.

0.1.0

Added

• New CHANGELOG.md file.
• Bitcoin (BTC) and Bitcoin Cash (BCH) compatibility.
• RocksDB database.
• Mempool support.
• HTTP streaming for events.
• CashAddr support.
• Bech32 support.
• Rate limits.

Changed

• Split out of former haskoin repository.
• Use hpack and package.yaml.

Removed

• Removed Stylish Haskell configuration file.
• Remvoed haskoin-core and haskoin-wallet packages from this repository.