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

0.53.1

Fixed

• Return 404 in case of bad address.

0.53.0

Added

• Blockchain.info endpoint: q/addresstohash/:addr.
• Blockchain.info endpoint: q/addrpubkey/:pubkey.
• Blockchain.info endpoint: q/hashpubkey/:pubkey.
• Blockchain.info endpoint: q/getblockcount.
• Blockchain.info endpoint: q/latesthash.
• Blockchain.info endpoint: q/bcperblock.
• Blockchain.info endpoint: q/txtotalbtcoutput/:txid.
• Blockchain.info endpoint: q/txtotalbtcinput/:txid.
• Blockchain.info endpoint: q/txfee/:txid.
• Blockchain.info endpoint: q/txresult/:txhash/:addr.
• Blockchain.info endpoint: q/getreceivedbyaddress/:addr.
• Blockchain.info endpoint: q/addressbalance/:addr.
• Blockchain.info endpoint: q/addressfirstseen/:addr.
• Support xpubs in blockchain/rawaddr endpoint.

Fixed

• Various latest blocks endpoint fixes.
• Allow empty parameters in Blockchain.info POST requests.

0.52.13

Fixed

• Upstream fixes for unknown inv types.

0.52.12

Fixed

• Fix limits for legacy endpoints.

0.52.11

Added

• Alias for Blockchain.info raw address endpoint.

Fixed

• Fix unknown message types without payload upstream.
• Randomise peer timeouts upstream.

0.52.10

Fixed

• Fix binary search algorithm for blocks upstream.

0.52.9

Added

• Add Blockchain.info latest block endpoint.
• Add Blockchain.info unconfirmed-transactions endpoint.
• Add Blockchain.info blocks for one day endpoint.

0.52.8

Fixed

• Fix special case for zero limit.

0.52.7

Fixed

• Fix cache bug when too many transactions in mempool.

0.52.6

Changed

• Use rationals for Blockchain.info export-history endpoint arithmetics.

0.52.5

Added

• Support for Blockchain.info export-history endpoint.

Fixed

• Use strict bytestring decoder for HTTP API client.

0.52.4

Fixed

• Use Base58 addresses by default in Blockchain.info balance querios.

0.52.3

Fixed

• Errors should also contain CORS headers.

0.52.2

Fixed

• Blockchain.info raw address limit should use limit parametre and not n.

0.52.1

Changed

• Stream multiple transactions when requested.

Fixed

• Fix missing unspent outputs.

0.52.0

Changed

• Remove unnecessary performance optimisations.

Fixed

• Reduce balance retrievals for xpubs.
• Hack UTXO ordering to avoid unwanted behaviours.
• Do not merge conduits when there are too many.

0.51.0

Fixed

• Data type for RequestTooLarge was missing.

0.50.3

Added

• Log HTTP request bodies.

Removed

• Remove web request timeout.

Fixed

• Do not ignore unknown start tx anchors in conduits.
• Use fast transaction counting in cache.

Changed

• Use WAI middlewares to manage stats.

0.50.2

Fixed

• Do not use lazy parsers for incoming data that may throw exceptions.

0.50.1

Fixed

• Do not allow incoming POST requests of unlimited body size.

0.50.0

Added

• Limit number of simultaneous xpubs being cached.

0.49.0

Changed

• Improve conduit merging algorithm.

0.48.0

Added

• Timeouts and token bucket for web requests.
• Configurable price fetch interval.

0.47.6

Fixed

• Fix web.all stat.

0.47.5

Changed

• Simplify stats.

0.47.4

Added

• Implement Blockchain.info block height.
• Implement Blockchain.info raw address.
• Implement Blockchain.info balances.

Fixed

• Make Blockchain.info unspent endpoint more efficient.
• Make Blockchain.info xpubs endpoint more efficient.

Changed

• Use compact JSON serialization by default everywhere.

0.47.3

Fixed

• Fix serialization bug with unspents.

0.47.2

Fixed

• Fix serialization bug for health check.

0.47.1

Fixed

• Fix serialization bugs for web data types.

0.47.0

Added

• Support for legacy block endpoints.

Changed

• Serialization now uses bytes library and does interleaved IO.

0.46.6

Added

• Allow comma-separated values in multiaddr.

0.46.5

Changed

• Throw error when offset exceeded instead of truncating it.

0.46.4

Fixed

• Do not compute balances separately for loose addresses when part of an xpub.

Changed

• Do not fetch entire transaction list for loose addresses.
• Transaction count in wallet object is just a synonym for filtered tx count.
• Use conduits to prevent over-fetching transactions from database.

0.46.3

Fixed

• Make hex value encoding compatible with Java BigInteger decoder.

0.46.2

Changed

• Allow negative confirmations for compatibility with old API.

0.46.1

Added

• Filters for transactions in multiaddr endpoint.

0.46.0

Fixed

• Release to fix unintentional upload.

0.45.0

Added

• Using a tx_index that results in a txid conflict returns a 409 - Conflict.

0.44.0

Changed

• Numeric txid now 53 bits long and doesn't return transactions when hashes collide.

0.43.1

Fixed

• Do not overcount statistics.

0.43.0

Changed

• Transaction index now simply encodes txid as a long number (sorry JS users).

0.42.4

Changed

• Optimise encoding of JSON data for Blockchain.info API.

0.42.3

Changed

• Narrow down the balance for transactions to onlyShow set.

0.42.2

Changed

• Make unspent algorithm more efficient.

0.42.1

Added

• Support for Blockchain.info API unspent endpoint.

Fixed

• Fix RBF transactions on Blockchain.info API.

0.42.0

Removed

• No more pruning of old mempool transactions.

0.41.4

Fixed

• Correct error computing wallet balances.

0.41.3

Changed

• Use whole active set when computing results for multiaddr.
• Compute correct count of transactions for wallet.

0.41.2

Changed

• Caching mempool is not much slower when pruning, so reversing that change.

0.41.1

Changed

• Only prune mempool every ten minutes or so.

0.41.0

Removed

• No more cache eviction endpoint.

0.40.22

Added

• More metrics for cache.

0.40.21

Added

• Support HTTP GET for multiaddr endpoint.

0.40.20

Added

• Prefix 'app.' in statsd when using Nomad variables.

0.40.19

Added

• Statsd support and pleny of statistics.

Removed

• Removed use of sync lock for importing xpubs in cache due to volume.

0.40.18

Added

• New options to control cache lock retry count and delay.

Changed

• Cache xpubs asyncrhonously.
• Mempool syncs fully every refresh cycle.

0.40.17

Changed

• Delete more than 1000 xpubs from Redis if needed.
• Attempt to get lock ten times in order to index a new xpub.

0.40.16

Fixed

• Fix best block not set.

0.40.15

Fixed

• Do not update cache best block if it is higher.

0.40.14

Fixed

• Always respond to cache pings to avoid getting stuck.

0.40.13

Added

• Be more careful about importing blocks to the cache.

Removed

• Reduce excessive cache logging.

0.40.12

Fixed

• Correct bad arithmetics in cache cooldown.

0.40.11

Added

• Debug log cache cooldown.

Fixed

• Unlimited retry lock acquisition now works.
• Make locking tighter

0.40.10

Changed

• Reduce the number of things that cache do when pinged.

0.40.9

Fixed

• Avoid filling the cache actor mailbox with pings.

0.40.8

Fixed

• Correct a typo in cache code.

0.40.7

Changed

• Improve cache mempool sync algorithm.

0.40.6

Changed

• Make cache cooldown a number.

0.40.5

Added

• Log every non-successful query.

0.40.4

Fixed

• Use Redis TTL for cache cooldown.

0.40.3

Fixed

• Mempool no longer gets saved in cache when node is not in sync.

0.40.2

Changed

• Change source of price data to https://blockchain.info/ticker.

0.40.1

Removed

• Do not expose Paths_haskoin_store module explicitly.

0.40.0

Added

• Blockchain.info API compatibility for multiaddr and rawtx endpoints.

Changed

• Segwit fields are no longer omitted on incompatible networks.

0.39.0

Changed

• Upgrade Haskoin Core to support higher version on witness addresses.

0.38.4

Fixed

• Fix block search by timestamp.

0.38.3

Changed

• Disable low latency garbage collector by default.

0.38.2

Changed

• Use GHC 8.10 and its low latency garbage collector.

0.38.1

Changed

• Optimise algorithm for fork safety check.

0.38.0

Added

• Support for Bitcoin Cash hard fork.

0.37.5

Added

• Configurable cache refresh time.

0.37.4

Fixed

• Now request mempool when connecting even if already in sync.

Changed

• Add a delay to mempool sync to allow for block headers to catch up.
• Attempt to sync mempool whenever syncing is done or a new peer connects.

0.37.3

Changed

• Correct logic error when deleting superseded transactions.

0.37.2

Changed

• Simplify multiple algorithms to hopefully solve corruption bug.
• Allow to disable mempool transaction indexing via command line.

0.37.1

Changed

• Better locking around caching operations.
• Have a global cooldown on cache mempool updates.

Fixed

• Fix address unspent retrieval using correct column family.

0.37.0

Added

• Add support for column families and prefixes breaking database backwards compatibility.

0.36.2

Fixed

• Fix another place where mempool sorting was wrong.

0.36.1

Fixed

• Fix wrong sorting of mempool transactions in database.

0.36.0

Changed

• Do not use STM transactions because it is impossible to reason about preloading.
• Make importing blocks after mempool is populated faster.

0.35.2

Changed

• Reduce frequency of cache mempool updates.

0.35.1

Changed

• Remove cache lock retries.
• Do not use lock when caching a new xpub.

0.35.0

Changed

• Use new RocksDB Haskell bindings.
• Make headers - blocks diff configurable in health check.
• Simplify locking in cache.

0.34.8

Changed

• Minor refactoring.
• Only send one mempool message ever.

0.34.7

Changed

• Fix block heights endpoint URL.

0.34.6

Removed

• Remove asynchronous database retrieval permanently due to instability.

0.34.5

Added

• Preload memory before freeing outputs.

0.34.4

Added

• Asynchronous preloading only for blocks.

0.34.3

Removed

• Disable asynchronous preloading to prevent segmentation fault error.

0.34.2

Removed

• No more upper limit for mempool call.

Fixed

• Health check uses minimum between last block and mempool tx.

0.34.1

Added

• Pending mempool transactions health check.

Removed

• No more upper limit for mempool call.

0.34.0

Changed

• New format for health check.

0.33.1

Changed

• Upload with updated Cabal files.

0.33.0

Fixed

• Fix outputs showing up as both spent and unspent.

Changed

• Simplify data structures used to hold uncommitted changes.
• Split StoreRead class in two.
• Improve pre-loading algorithms.

0.32.3

Fixed

• Fix command line argument mappings to env vars.

0.32.2

Fixed

• Do not complain when deleting non-existent unconfirmed txs.

0.32.1

Fixed

• Fix corruption bug when deleting transactions during some reorgs.
• Fix tests on data package.
• Rename upstream address string functions.

0.32.0

Changed

• Concurrently load dependencies when importing transaction data.
• Import each transaction using STM.
• Rework logging.
• Refactor all block chain importing algorithms.
• Use peer locking when importing data.
• Change license to MIT.

Added

• Make max peer count configurable.

Fixed

• Prevent premature peer timeouts when importing blocks.

0.31.0

Added

• Add Haskell web client code to data library.
• Use type-safe definitions for web paths and parameters.
• Support JSON pretty encoding and enable by default for some endpoints.
• Allow environment variables for configuration.

Changed

• Change command-line arguments to better fit GNU style.
• Refactor code to manipulate address balances.
• Improve logging.
• Rate-limit mempool importing.
• Do not add xpubs to cache if node not in sync.
• Do not import transactions to cache if no xpubs in cache.
• Refactor transaction importing logic extremely.
• Refactor memory database and writer.

Fixed

• Fix BTC double-count transaction bug.
• Add missing xpub derive parameter to xpub evict documentation.

0.30.1

Changed

• Limit mempool API endpoint list.

0.30.0

Changed

• Raw JSON values are now wrapped in an object with a result property.
• Better logging when importing transactions into mempool.

Fixed

• Transaction limit by block height works now.

0.29.3

Changed

• Revert concurrent retrieval changes from 0.29.1 and 0.29.0 to solve stability issues.
• Bitcoin Cash (BCH) replaces BTC as default network in CLI.
• Peer discovery enabled automatically if no peers specified in CLI.
• Use separate Stack configuration file for data package.

0.29.2

Changed

• Increase timeouts for manager and chain health checks.

0.29.1

Added

• Perform xpub operations concurrently.

0.29.0

Changed

• BlockTx renamed to TxRef.
• Remove unnecessary monad transformers to simplify import code.

Added

• Retrieve balances and unspent outputs concurrently when importing.
• Coin instance for Unspent in data package.

0.28.0

Changed

• Change the way that limits, start, and offset values are handled.

Fixed

• Fix incorrect limit responses.

0.27.0

Added

• Complete support for offset.

Changed

• Improve monad stack for cache.

0.26.6

Added

• Support for offset in all endpoints where it makes sense.

0.26.5

Fixed

• Sort after using the nub function or use Data.List.nub in exceptional cases.

0.26.4

Changed

• Don't do certain validity checks on confirmed transactions.

Fixed

• Do not crash when syncing the blockchain from scratch on a populated cache.

0.26.3

Changed

• Replace nub function everywhere with faster version written using hash sets.

Fixed

• Fix shared cache locking.

0.26.2

Changed

• Simplify cache block import code.
• Improve cache import performance.

0.26.1

Fixed

• Do not call zadd or zrem in Redis with incorrect argument count.

Changed

• Do not use slow Transaction type in Logic.
• Improve logging while importing blocks.
• Better transaction import algorithm.

0.26.0

Changed

• Add information to some binary types for feature parity with JSON.

0.25.4

Changed

• Hide segwit data on non-segwit networks.

Fixed

• Fix work which now always serialises as a number literal.

0.25.3

Changed

• Fix version display on health check.

0.25.2

Changed

• Fix wrong version of Haskoin Store Data dependency.

0.25.1

Changed

• Improve code organisation.
• Split data definitions and serialisation into its own package.

0.24.0

Changed

• Use mocking to simulate peers instead of connecting to the network while testing.
• Depend on latest version of Haskoin Core for faster JSON serialisation.
• Clean up confusing JSON encoding/decoding codebase.

0.23.24

Changed

• Implement faster JSON encoding using toEncoding from the Aeson library.

0.23.23

Changed

• Do not read full mempool so often from cache code.

0.23.22

Changed

• Depend on latest Haskoin Node that fixes debugging regression.

0.23.21

Changed

• Reduce non-debug log verbosity.

0.23.20

Changed

• Better Haskoin Node logging.

0.23.19

Changed

• Use set peer timeout instead of constant in block store.

0.23.18

Changed

• Allow setting peer timeouts in command line.

Fixed

• Bump Haskoin Node dependency to fix another premature timeout condition.

0.23.17

Fixed

• Touch syncing peer whenever we process one of its blocks to avoid premature timeout.

0.23.16

Changed

• Better algorithm to avoid importing transaction multiple times in cache.
• Depend on latest Haskoin Node.

0.23.15

Changed

• Do not storm the cache with mempool transactions.

0.23.13

Fixed

• Do not ignore deleted incoming transactions.

0.23.12

Fixed

• Do not do RBF checks when replacing a mempool transaction with a confirmed one.

0.23.11

Fixed

• Streamline mempool transaction importing.

0.23.10

Fixed

• Fix transactions not recorded in cache mempool set.
• Fix transactions being downloaded multiple times.

Removed

• Do not store orphan transactions in database.

Changed

• Use sets for incoming transactions instead of lists.
• Do not do anything to the cache if there are no xpubs in it.

0.23.9

Fixed

• Wiping mempool fixed.

0.23.8

Added

• Chunk transactions to be deleted from mempool.

0.23.7

Added

• Mempool improvements.

0.23.6

Added

• Ability to wipe mempool at start.
• Improvements to mempool processing code.

0.23.5

Changed

• Tighten the locking loop to avoid slow cache building.

0.23.5

Fixed

• Wrong error in cache when acquiring lock.

0.23.4

Added

• Add extra debug logging for cache code.

Fixed

• Fix a bug with xpub growing algorithm.

Changed

• Use locks instead of transactions to update cache.

0.23.3

Fixed

• Reduce contention when many instances of Haskoin Store share a cache.

0.23.2

Added

• Allow retrieving xpub data without using cache.

0.23.1

Added

• Allow xpub eviction from cache via API.
• Clarify cache address addition code.

Fixed

• Balances were incorrectly computed in cache when new transactions arrived.

0.23.0

Added

• Support for Redis transactions.
• Use a smaller initial gap for empty xpubs.

Changed

• Remove custom JSON encoding class.
• Refactor and code simplification.

0.22.5

Fixed

• Cache was being completely pruned.

0.22.4

Fixed

• Cache now prunes correctly.

0.22.3

Fixed

• Bug was making cache get stuck when pruning.

0.22.2

Changed

• More efficient algorithms for caching and cache misses.
• Better debug logging of cache hits and misses.

0.22.1

Added

• More debug logging for cache hits.

Fixed

• Bug using maximum against empty list.

0.22.0

Changed

• Extreme code refactoring.
• Move all code to Haskoin and drop Network from modules.

Added

• Use Redis pipelining when importing multiple transactions into cache.
• Implement configurable LRU for Redis cache.
• Import xpubs directly into cache from web worker thread when a key is requested.

Removed

• Only expose a few modules to external API.

0.21.7

Changed

• Improve build configuration.

Fixed

• Use minimum used addresses instead of minimum index for xpub cache decision.

0.21.6

Fixed

• Fix missing xpub unspent outputs when using cache.

0.21.5

Added

• Only store xpubs in cache if they have more than a threshold addresses used.

0.21.4

Fixed

• Fix shared cache case where head is set beyond header chain by another node.

0.21.3

Fixed

• Fix bug where best head was not being registered in cache.
• Fix best head in cache being decoded incorrectly.

0.21.2

Added

• Complete support for Redis xpub cache.

0.21.1

Fixed

• Latest version of secp256k1-haskell works with Debian 9.

0.21.0

Fixed

• Fix output of web API calls when issuing limits with offsets.

Changed

• Massive refactoring of entire codebase.

Added

• Work in progress Redis caching for extended public keys.

0.20.2

Changed

• Filter xpub address balances on web API to show only addresses that have been used.

Removed

• Remove paths and addresses from xpub summary.

0.20.1

Changed

• Refactor code greatly.
• Depend on new Haskoin Store package to avoid missing tx broadcasts.
• Merge StoreStream class into StoreRead.
• Move former streaming functions to use lists instead of conduits.
• Remove excessively verbose debugging.

0.20.0

Added

• Set minimum version bounds for some dependencies.
• Now compatible with GHC 8.8.
• Extended key caching system using Redis.

Changed

• Massively refactored codebase.
• Less verbose debug logging.

Removed

• Removed conduits for faster queries.

0.19.6

Added

• Use a parallel strategy to compute key derivations.

Fixed

• Do not fail health check upon transaction timeout while syncing.

Changed

• Do not use conduits for xpub balance streams.
• Multiple minor refactorings.

0.19.5

Changed

• Minor refactor to block import code.

Fixed

• Minor fix to transaction timeout check.

0.19.4

Fixed

• Clarify and correct health check algorithm.

0.19.3

Changed

• Add address transactions to cache.
• Improve multi-address transaction retrieval algorithms.

0.19.2

Removed

• Cache-Control header turned out to be unnecessary.

Fixed

• Fix some minor errors in web module.

0.19.1

Added

• Set Cache-Control header to no-cache.

0.19.0

Changed

• Store mempool in single key/value pair.

0.18.11

Changed

• Do not stream mempool.

0.18.10

Removed

• Disable timeout checks for testnets.

0.18.9

Added

• Endpoint to locate a block by unix timestamp.

Removed

• No more persistence for peers due to dependency on newest haskoin-node.

0.18.8

Added

• Transaction and block timeouts for health check.
• Raw blocks.

0.18.7

Fixed

• Missing tranasctions on xpub listings.

0.18.6

Removed

• Follow Stack advise removing -O2 GHC option.

0.18.5

Added

• Compatibility with SegWit on extended public key endpoints.

Changed

• Fix syncing peer not reset after timeout.
• Use simpler monad for streaming data.

0.18.4

Changed

• Bump Haskoin Node to fix peers not stored and excessively verbose logging.

0.18.3

Changed

• Configurable HTTP request logging. Disabled by default.

0.18.2

Changed

• Fix for memory leak.

0.18.1

Removed

• Remove transaction count from xpub summary object.

0.18.0

Changed

• Simplified limits and start point handling on web API.
• Made transaction streaming algorithm faster for xpub transactions.
• Extended public key summary output contains all addresses that have received transactions.

Added

• Fine-grained control for maximum limits via command line options.
• Transaction hash as starting point.
• Block hash as starting point.
• Timestamp as starting point.
• Configurable xpub gap limit.
• Transaction count added to xpub summary.
• UTXO count added to xpub summary.

Removed

• Mempool endpoint now has no limits or offsets and always returns full list.
• Extended public key summary output no longer includes any transactions.
• Offsets not allowed for transaction lists involving multiple addresses or xpubs.
• Confusing block position parameter no longer part of web API.

0.17.2

Changed

• Stream address balances and unspent outputs.
• Add configurable max value for limit and offset which defaults at 10000.

0.17.1

Changed

• When posting a transaction to the network, timeout is now five seconds.
• Improve error message when transaction post timeout reached.
• Remove obsolete not found error for transaction post.
• Endpoints for retrieving blocks now do streaming for better performance.
• Improve Swagger API documentation.

0.17.0

Added

• Endpoints for retrieving block transactions.
• Endpoint for retrieving set of latest blocks.

Changed

• Use standardized JSON and binary serialization schemes for raw transaction endpoints.

0.16.6

Changed

• Now logging info messages too by default.
• Consolidated web logging in middleware.

Removed

• UUIDs for web requests.

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

• Removed PreciseUnixTime data type.

Changed

• Use 64 bits for Unix time representation.
• Data model now uses simplified Unix time representation.

0.14.9

Added

• Last external/change index information to xpub summary 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 and 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.