btcd v0.6.0-alpha

• 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
  (btcsuite/btcchain#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
    (#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
    (#61)
  • Implement help command
  • Implement ping command
  • Implement getaddednodeinfo command
    (#78)
  • Implement getinfo command
  • Update getpeerinfo to support bytesrecv and bytessent
    (#83)
• Improve and correct several RPC server and websocket areas:
  • Change the connection endpoint for websockets from /wallet to /ws
    (#80)
  • Implement an alternative authentication for websockets so clients
    such as javascript from browsers that don't support setting HTTP
    headers can authenticate (#77)
  • Add an authentication deadline for RPC connections
    (#68)
  • Use standard authentication failure responses for RPC connections
  • Make automatically generated certificate more standard so it works
    from clients 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
  (btcsuite/btcwire#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
  (#66)
• Several optimizations related to fetching block information from the
  database
• General code cleanup

btcd v0.5.0-alpha

• 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
  (#63)
• Fix an issue where the initial block sync could stall when the sync peer
  disconnects (#62)
• Correct an issue where --externalip was doing a DNS lookup on the full
  host:port instead of just the host portion
  (#38)
• Fix an issue which could lead to a panic on chain switches
  (#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
  (#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
  (#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

btcd v0.4.0-alpha

• Allow listen interfaces to be specified via --listen instead of only the
  port (#33)
• Allow listen interfaces for the RPC server to be specified via
  --rpclisten instead of only the port
  (#34)
• Only disable listening when --connect or --proxy are used when no
  --listen interface are specified
  (#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 (#36) and
  (#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
    (#48)
  • Allow logging levels to be dynamically changed via RPC
    (#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
  (#54)
• Fix a race with pushing address messages that could lead to a panic
  (#58)
• Improve which external IP address is reported to peers based on which
  interface they are connected through
  (#35)
• Add --externalip option to allow an external IP address to be specified
  for cases such as tor hidden services or advanced network configurations
  (#38)
• Add --upnp option to support automatic port mapping via UPnP
  (#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
  (#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

btcd v0.3.3-alpha

• Significantly improve initial block chain download speed
  (#20)
• Add a new checkpoint at block height 267300
• Optimize most recently used inventory handling
  (#21)
• Optimize duplicate transaction input check
  (btcsuite/btcchain#2)
• Optimize transaction hashing
  (#25)
• Rework and optimize wallet listener notifications
  (#22)
• Optimize serialization and deserialization
  (#27)
• Add support for minimum transaction fee to memory pool acceptance
  (#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 (#26)
• Add support for the following RPC calls: getpeerinfo, getconnectedcount,
  addnode, verifychain
  (#13)
  (#17)
• Implement rescan websocket extension to allow wallet rescans
• Use correct paths for application data storage for all supported
  operating systems (#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

btcd v0.3.2-alpha

• Add a 32-bit MSI for Windows
• Fix an issue that could cause the download of the block chain to stall (#12)
• Remove deprecated sqlite as an available database backend
• Close sqlite compile issue as sqlite has now been removed (#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 (#19)
• Other minor bug fixes and general code cleanup

btcd v0.3.1-alpha

• 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 -- #18
• Fix issue preventing block 21066 on testnet -- btcsuite/btcchain#1
• Fix issue preventing block 96464 on testnet -- btcsuite/btcscript#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

btcd v0.3.0-alpha

• Initial Public Preview