============================================================================
User visible changes for btcd
A full-node bitcoin implementation written in Go
============================================================================
Changes in 0.7.0 (Thu Feb 20 2014)
- Fix an issue when parsing scripts which contain a multi-signature script
which require zero signatures such as testnet block
000000001881dccfeda317393c261f76d09e399e15e27d280e5368420f442632
(https://github.com/conformal/btcscript/issues/7)
- Add check to ensure all transactions accepted to mempool only contain
canonical data pushes (https://github.com/conformal/btcscript/issues/6)
- Fix an issue causing excessive memory consumption
- Significantly rework and improve the websocket notification system:
- Each client is now independent so slow clients no longer limit the
speed of other connected clients
- Potentially long-running operations such as rescans are now run in
their own handler and rate-limited to one operation at a time without
preventing simultaneous requests from the same client for the faster
requests or notifications
- A couple of scenarios which could cause shutdown to hang have been
resolved
- Update notifynewtx notifications to support all address types instead
of only pay-to-pubkey-hash
- Provide a --rpcmaxwebsockets option to allow limiting the number of
concurrent websocket clients
- Add a new websocket command notifyallnewtxs to request notifications
(https://github.com/conformal/btcd/issues/86) (thanks @flammit)
- Improve btcctl utility in the following ways:
- Add getnetworkhashps command
- Add gettransaction command (wallet-specific)
- Add signmessage command (wallet-specific)
- Update getwork command to accept
- Continue cleanup and work on implementing the RPC API:
- Implement getnettotals command
(https://github.com/conformal/btcd/issues/84)
- Implement networkhashps command
(https://github.com/conformal/btcd/issues/87)
- Update getpeerinfo to always include syncnode field even when false
- Remove help addenda for getpeerinfo now that it supports all fields
- Close standard RPC connections on auth failure
- Provide a --rpcmaxclients option to allow limiting the number of
concurrent RPC clients (https://github.com/conformal/btcd/issues/68)
- Include IP address in RPC auth failure log messages
- Resolve a rather harmless data races found by the race detector
(https://github.com/conformal/btcd/issues/94)
- Increase block priority size and max standard transaction size to 50k
and 100k, respectively (https://github.com/conformal/btcd/issues/71)
- Add rate limiting of free transactions to the memory pool to prevent
penny flooding (https://github.com/conformal/btcd/issues/40)
- Provide a --logdir option (https://github.com/conformal/btcd/issues/95)
- Change the default log file path to include the network
- Add a new ScriptBuilder interface to btcscript to support creation of
custom scripts (https://github.com/conformal/btcscript/issues/5)
- General code cleanup
Changes in 0.6.0 (Tue Feb 04 2014)
- Fix an issue when parsing scripts which contain invalid signatures that
caused a chain fork on block
0000000000000001e4241fd0b3469a713f41c5682605451c05d3033288fb2244
- Correct an issue which could lead to an error in removeBlockNode
(https://github.com/conformal/btcchain/issues/4)
- Improve addblock utility as follows:
- Check imported blocks against all chain rules and checkpoints
- Skip blocks which are already known so you can stop and restart the
import or start the import after you have already downloaded a portion
of the chain
- Correct an issue where the utility did not shutdown cleanly after
processing all blocks
- Add error on attempt to import orphan blocks
- Improve error handling and reporting
- Display statistics after input file has been fully processed
- Rework, optimize, and improve headers-first mode:
- Resuming the chain sync from any point before the final checkpoint
will now use headers-first mode
(https://github.com/conformal/btcd/issues/69)
- Verify all checkpoints as opposed to only the final one
- Reduce and bound memory usage
- Rollback to the last known good point when a header does not match a
checkpoint
- Log information about what is happening with headers
- Improve btcctl utility in the following ways:
- Add getaddednodeinfo command
- Add getnettotals command
- Add getblocktemplate command (wallet-specific)
- Add getwork command (wallet-specific)
- Add getnewaddress command (wallet-specific)
- Add walletpassphrasechange command (wallet-specific)
- Add walletlock command (wallet-specific)
- Add sendfrom command (wallet-specific)
- Add sendmany command (wallet-specific)
- Add settxfee command (wallet-specific)
- Add listsinceblock command (wallet-specific)
- Add listaccounts command (wallet-specific)
- Add keypoolrefill command (wallet-specific)
- Add getreceivedbyaccount command (wallet-specific)
- Add getrawchangeaddress command (wallet-specific)
- Add gettxoutsetinfo command (wallet-specific)
- Add listaddressgroupings command (wallet-specific)
- Add listlockunspent command (wallet-specific)
- Add listlock command (wallet-specific)
- Add listreceivedbyaccount command (wallet-specific)
- Add validateaddress command (wallet-specific)
- Add verifymessage command (wallet-specific)
- Add sendtoaddress command (wallet-specific)
- Continue cleanup and work on implementing the RPC API:
- Implement submitblock command
(https://github.com/conformal/btcd/issues/61)
- Implement help command
- Implement ping command
- Implement getaddednodeinfo command
(https://github.com/conformal/btcd/issues/78)
- Implement getinfo command
- Update getpeerinfo to support bytesrecv and bytessent
(https://github.com/conformal/btcd/issues/83)
- Improve and correct several RPC server and websocket areas:
- Change the connection endpoint for websockets from /wallet to /ws
(https://github.com/conformal/btcd/issues/80)
- Implement an alternative authentication for websockets so clients
such as javascript from browsers that don't support setting HTTP
headers can authenticate (https://github.com/conformal/btcd/issues/77)
- Add an authentication deadline for RPC connections
(https://github.com/conformal/btcd/issues/68)
- Use standard authentication failure responses for RPC connections
- Make automatically generated certificate more standard so it works
from client such as node.js and Firefox
- Correct some minor issues which could prevent the RPC server from
shutting down in an orderly fashion
- Make all websocket notifications require registration
- Change the data sent over websockets to text since it is JSON-RPC
- Allow connections that do not have an Origin header set
- Expose and track the number of bytes read and written per peer
(https://github.com/conformal/btcwire/issues/6)
- Correct an issue with sendrawtransaction when invoked via websockets
which prevented a minedtx notification from being added
- Rescan operations issued from remote wallets are no stopped when
the wallet disconnects mid-operation
(https://github.com/conformal/btcd/issues/66)
- Several optimizations related to fetching block information from the
database
- General code cleanup
Changes in 0.5.0 (Mon Jan 13 2014)
- Optimize initial block download by introducing a new mode which
downloads the block headers first (up to the final checkpoint)
- Improve peer handling to remove the potential for slow peers to cause
sluggishness amongst all peers
(https://github.com/conformal/btcd/issues/63)
- Fix an issue where the initial block sync could stall when the sync peer
disconnects (https://github.com/conformal/btcd/issues/62)
- Correct an issue where --externalip was doing a DNS lookup on the full
host:port instead of just the host portion
(https://github.com/conformal/btcd/issues/38)
- Fix an issue which could lead to a panic on chain switches
(https://github.com/conformal/btcd/issues/70)
- Improve btcctl utility in the following ways:
- Show getdifficulty output as floating point to 6 digits of precision
- Show all JSON object replies formatted as standard JSON
- Allow btcctl getblock to accept optional params
- Add getaccount command (wallet-specific)
- Add getaccountaddress command (wallet-specific)
- Add sendrawtransaction command
- Continue cleanup and work on implementing RPC API calls
- Update getrawmempool to support new optional verbose flag
- Update getrawtransaction to match the reference client
- Update getblock to support new optional verbose flag
- Update raw transactions to fully match the reference client including
support for all transaction types and address types
- Correct getrawmempool fee field to return BTC instead of Satoshi
- Correct getpeerinfo service flag to return 8 digit string so it
matches the reference client
- Correct verifychain to return a boolean
- Implement decoderawtransaction command
- Implement createrawtransaction command
- Implement decodescript command
- Implement gethashespersec command
- Allow RPC handler overrides when invoked via a websocket versus
legacy connection
- Add new DNS seed for peer discovery
- Display user agent on new valid peer log message
(https://github.com/conformal/btcd/issues/64)
- Notify wallet when new transactions that pay to registered addresses
show up in the mempool before being mined into a block
- Support a tor-specific proxy in addition to a normal proxy
(https://github.com/conformal/btcd/issues/47)
- Remove deprecated sqlite3 imports from utilities
- Remove leftover profile write from addblock utility
- Quite a bit of code cleanup and refactoring to improve maintainability
Changes in 0.4.0 (Thu Dec 12 2013)
- Allow listen interfaces to be specified via --listen instead of only the
port (https://github.com/conformal/btcd/issues/33)
- Allow listen interfaces for the RPC server to be specified via
--rpclisten instead of only the port
(https://github.com/conformal/btcd/issues/34)
- Only disable listening when --connect or --proxy are used when no
--listen interface are specified
(https://github.com/conformal/btcd/issues/10)
- Add several new standard transaction checks to transaction memory pool:
- Support nulldata scripts as standard
- Only allow a max of one nulldata output per transaction
- Enforce a maximum of 3 public keys in multi-signature transactions
- The number of signatures in multi-signature transactions must not
exceed the number of public keys
- The number of inputs to a signature script must match the expected
number of inputs for the script type
- The number of inputs pushed onto the stack by a redeeming signature
script must match the number of inputs consumed by the referenced
public key script
- When a block is connected, remove any transactions from the memory pool
which are now double spends as a result of the newly connected
transactions
- Don't relay transactions resurrected during a chain switch since
other peers will also be switching chains and therefore already know
about them
- Cleanup a few cases where rejected transactions showed as an error
rather than as a rejected transaction
- Ignore the default configuration file when --regtest (regression test
mode) is specified
- Implement TLS support for RPC including automatic certificate generation
- Support HTTP authentication headers for web sockets
- Update address manager to recognize and properly work with Tor
addresses (https://github.com/conformal/btcd/issues/36) and
(https://github.com/conformal/btcd/issues/37)
- Improve btcctl utility in the following ways:
- Add the ability to specify a configuration file
- Add a default entry for the RPC cert to point to the location
it will likely be in the btcd home directory
- Implement --version flag
- Provide a --notls option to support non-TLS configurations
- Fix a couple of minor races found by the Go race detector
- Improve logging
- Allow logging level to be specified on a per subsystem basis
(https://github.com/conformal/btcd/issues/48)
- Allow logging levels to be dynamically changed via RPC
(https://github.com/conformal/btcd/issues/15)
- Implement a rolling log file with a max of 10MB per file and a
rotation size of 3 which results in a max logging size of 30 MB
- Correct a minor issue with the rescanning websocket call
(https://github.com/conformal/btcd/issues/54)
- Fix a race with pushing address messages that could lead to a panic
(https://github.com/conformal/btcd/issues/58)
- Improve which external IP address is reported to peers based on which
interface they are connected through
(https://github.com/conformal/btcd/issues/35)
- Add --externalip option to allow an external IP address to be specified
for cases such as tor hidden services or advanced network configurations
(https://github.com/conformal/btcd/issues/38)
- Add --upnp option to support automatic port mapping via UPnP
(https://github.com/conformal/btcd/issues/51)
- Update Ctrl+C interrupt handler to properly sync address manager and
remove the UPnP port mapping (if needed)
- Continue cleanup and work on implementing RPC API calls
- Add importprivkey (import private key) command to btcctl
- Update getrawtransaction to provide addresses properly, support
new verbose param, and match the reference implementation with the
exception of MULTISIG (thanks @flammit)
- Update getblock with new verbose flag (thanks @flammit)
- Add listtransactions command to btcctl
- Add getbalance command to btcctl
- Add basic support for btcd to run as a native Windows service
(https://github.com/conformal/btcd/issues/42)
- Package addblock utility with Windows MSIs
- Add support for TravisCI (continuous build integration)
- Cleanup some documentation and usage
- Several other minor bug fixes and general code cleanup
Changes in 0.3.3 (Wed Nov 13 2013)
- Significantly improve initial block chain download speed
(https://github.com/conformal/btcd/issues/20)
- Add a new checkpoint at block height 267300
- Optimize most recently used inventory handling
(https://github.com/conformal/btcd/issues/21)
- Optimize duplicate transaction input check
(https://github.com/conformal/btcchain/issues/2)
- Optimize transaction hashing
(https://github.com/conformal/btcd/issues/25)
- Rework and optimize wallet listener notifications
(https://github.com/conformal/btcd/issues/22)
- Optimize serialization and deserialization
(https://github.com/conformal/btcd/issues/27)
- Add support for minimum transaction fee to memory pool acceptance
(https://github.com/conformal/btcd/issues/29)
- Improve leveldb database performance by removing explicit GC call
- Fix an issue where Ctrl+C was not always finishing orderly database
shutdown
- Fix an issue in the script handling for OP_CHECKSIG
- Impose max limits on all variable length protocol entries to prevent
abuse from malicious peers
- Enforce DER signatures for transactions allowed into the memory pool
- Separate the debug profile http server from the RPC server
- Rework of the RPC code to improve performance and make the code cleaner
- The getrawtransaction RPC call now properly checks the memory pool
before consulting the db (https://github.com/conformal/btcd/issues/26)
- Add support for the following RPC calls: getpeerinfo, getconnectedcount,
addnode, verifychain
(https://github.com/conformal/btcd/issues/13)
(https://github.com/conformal/btcd/issues/17)
- Implement rescan websocket extension to allow wallet rescans
- Use correct paths for application data storage for all supported
operating systems (https://github.com/conformal/btcd/issues/30)
- Add a default redirect to the http profiling page when accessing the
http profile server
- Add a new --cpuprofile option which can be used to generate CPU
profiling data on platforms that support it
- Several other minor performance optimizations
- Other minor bug fixes and general code cleanup
Changes in 0.3.2 (Tue Oct 22 2013)
- Fix an issue that could cause the download of the block chain to stall
(https://github.com/conformal/btcd/issues/12)
- Remove deprecated sqlite as an available database backend
- Close sqlite compile issue as sqlite has now been removed
(https://github.com/conformal/btcd/issues/11)
- Change default RPC ports to 8334 (mainnet) and 18334 (testnet)
- Continue cleanup and work on implementing RPC API calls
- Add support for the following RPC calls: getrawmempool,
getbestblockhash, decoderawtransaction, getdifficulty,
getconnectioncount, getpeerinfo, and addnode
- Improve the btcctl utility that is used to issue JSON-RPC commands
- Fix an issue preventing btcd from cleanly shutting down with the RPC
stop command
- Add a number of database interface tests to ensure backends implement
the expected interface
- Expose some additional information from btcscript to be used for
identifying "standard"" transactions
- Add support for plan9 - thanks @mischief
(https://github.com/conformal/btcd/pull/19)
- Other minor bug fixes and general code cleanup
Changes in 0.3.1-alpha (Tue Oct 15 2013)
- Change default database to leveldb
NOTE: This does mean you will have to redownload the block chain. Since we
are still in alpha, we didn't feel writing a converter was worth the time as
it would take away from more important issues at this stage
- Add a warning if there are multiple block chain databases of different types
- Fix issue with unexpected EOF in leveldb -- https://github.com/conformal/btcd/issues/18
- Fix issue preventing block 21066 on testnet -- https://github.com/conformal/btcchain/issues/1
- Fix issue preventing block 96464 on testnet -- https://github.com/conformal/btcscript/issues/1
- Optimize transaction lookups
- Correct a few cases of list removal that could result in improper cleanup
of no longer needed orphans
- Add functionality to increase ulimits on non-Windows platforms
- Add support for mempool command which allows remote peers to query the
transaction memory pool via the bitcoin protocol
- Clean up logging a bit
- Add a flag to disable checkpoints for developers
- Add a lot of useful debug logging such as message summaries
- Other minor bug fixes and general code cleanup
Initial Release 0.3.0-alpha (Sat Oct 05 2013):
- Initial release