Prepare for release 0.5.0.
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Josh Rickmar
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2 changed files with 153 additions and 1 deletions
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@ -3,6 +3,158 @@ User visible changes for btcwallet
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A wallet daemon for btcd, written in Go
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============================================================================
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Changes in 0.5.0 (Tue Mar 03 2015)
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- New features:
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- Add a new address manager package (waddrmgr) to replace the previous
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wallet/keystore package:
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- BIP0032 hierarchical deterministic keys
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- BIP0043/BIP0044 multi-account hierarchy
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- Strong focus on security:
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- Wallet master encryption keys protected by scrypt PBKDF
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- NaCl-based secretbox cryptography (XSalsa20 and Poly1305)
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- Mandatory encryption of private keys and P2SH redeeming scripts
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- Optional encryption of public data, including extended public keys
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and addresses
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- Different crypto keys for redeeming scripts to mitigate cryptanalysis
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- Hardened against memory scraping through the use of actively clearing
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private material from memory when locked
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- Different crypto keys used for public, private, and script data
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- Ability for different passphrases for public and private data
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- Multi-tier scalable key design to allow instant password changes
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regardless of the number of addresses stored
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- Import WIF keys
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- Import pay-to-script-hash scripts for things such as multi-signature
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transactions
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- Ability to export a watching-only version which does not contain any
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private key material
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- Programmatically detectable errors, including encapsulation of errors
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from packages it relies on
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- Address synchronization capabilities
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- Add a new namespaced database package (walletdb):
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- Key/value store
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- Namespace support
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- Allows multiple packages to have their own area in the database without
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worrying about conflicts
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- Read-only and read-write transactions with both manual and managed modes
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- Nested buckets
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- Supports registration of backend databases
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- Comprehensive test coverage
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- Replace the createencryptedwallet RPC with a wizard-style prompt
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(--create) to create a new walletdb-backed wallet file and import keys
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from the old Armory wallet file (if any)
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- Transaction creation changes:
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- Drop default transaction fee to 0.00001 BTC per kB
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- Use standard script flags provided by the txscript package for
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transaction creation and sanity checking
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- Randomize change output index
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- Includes amounts (total spendable, total needed, and fee) in all
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insufficient funds errors
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- Add support for simnet, the private simulation test network
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- Implement the following Bitcoin Core RPCs:
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- listreceivedbyaddress (#53)
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- lockunspent, listlockunspent (#50, #55)
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- getreceivedbyaddress
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- listreceivedbyaccount
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- Reimplement btcd RPCs which return the best block to use the block most
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recently processed by wallet to avoid confirmation races:
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- getbestblockhash
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- getblockcount
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- Perform clean shutdown on interrupt or when a stop RPC is received (#69)
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- Throttle the number of connected HTTP POST and websocket client
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connections (tunable using the rpcmaxclients and rpcmaxwebsockets config
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options)
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- Provide the ability to disable TLS when connecting to a localhost btcd or
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serving localhost clients
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- Rescan improvements:
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- Add a rescan notification for when the rescan has completed and no more
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rescan notifications are expected (#99)
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- Use the most recent partial sync height from a rescan progress
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notification when a rescan is restarted after the btcd connection is lost
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- Force a rescan if the transaction store cannot be opened (due to a
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missing file or if the deserialization failed)
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- RPC compatibility improvements:
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- Allow the use of the `*` account name to refer to all accounts
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- Make the account parameter optional for the getbalance and
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listalltransactions requests
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- Add iswatchonly field to the validateaddress response result
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- Check address equivalence in verifymessage by comparing pubkeys and pubkey
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hashes rather than requiring the address being verified to be one
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controlled by the wallet and using its private key for verification
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- Bug fixes:
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- Prevent an out-of-bounds panic when handling a gettransaction RPC.
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- Prevent a panic on client disconnect (#110).
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- Prevent double spending coins when creating multiple transactions at once
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by serializing access to the transaction creation logic (#120)
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- Mark unconfirmed transaction credits as spent when another unconfirmed
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transaction spends one (#91)
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- Exclude immature coinbase outputs from listunspent results (#103)
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- Fix several data and logic races during sync with btcd (#101)
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- Avoid a memory issue from incorrect slice usage which caused both
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duplicate and missing blocks in the transaction store when middle
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inserting transactions from a new block
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- Only spend P2PKH outputs when creating sendfrom/sendmany/sendtoaddress
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transactions (#89)
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- Return the correct UTXO set when fetching all wallet UTXOs by fixing an
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incorrect slice append
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- Remove a deadlock caused by filling the btcd notification channel (#100)
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- Avoid a confirmation race by using the most recently processed block in
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RPC handlers, rather than using the most recently notified block by btcd
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- Marshal empty JSON arrays as `[]` instead of the JSON `null` by using
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empty, non-nil Go slices
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- Flush logs and run all deferred functions before main returns and the
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process exits
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- Sync temporary transaction store flat file before closing and renaming
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- Accept hex strings with an odd number of characters
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- Notable developer-related changes:
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- Switch from the go.net websocket package to gorilla websockets
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- Refactor the RPC server:
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- Move several global variables to the rpcServer struct
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- Dynamically look up appropriate handlers for the current btcd connection
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status and wallet sync state
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- Begin creating websocket notifications by sending to one of many
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notification channels in the rpcServer struct, which are in turn
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marshalled and broadcast to each websocket client
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- Separate the RPC client code into the chain package:
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- Uses btcrpcclient for a btcd websocket RPC client
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- Converts all notification callbacks to typed messages sent over channels
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- Uses an unbounded queue for waiting notifications
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- Import a new voting pool package (votingpool):
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- Create and fetch voting pools and series from a walletdb namespace
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- Generate deposit addresses utilizing m-of-n multisig P2SH scripts
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- Improve transaction creation readability by splitting a monolithic
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function into several smaller ones
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- Check and handle all errors in some way, or explicitly comment why a
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particular error was left unchecked
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- Simplify RPC error handling by wrapping specific errors in unique types to
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create an appropriate btcjson error before the response is marshalled
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- Add a map of unspent outputs (keyed by outpoint) to the transaction store
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for quick lookup of any UTXO and access to the full wallet UTXO set
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without iterating over many transactions looking for unspent credits
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- Modify several data structures and function signatures have been modified
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to reduce the number of needed allocations and be more cache friendly
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- Miscellaneous:
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- Rewrite paths relative to the data directory when an alternate data
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directory is provided on the command line
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- Switch the websocket endpoint to `ws` to match btcd
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- Remove the getaddressbalance extension RPC to discourage address reuse and
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encourage watching for expected payments by using listunspent
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- Increase transaction creation performance by moving the sorting of
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transaction outputs by their amount out of an inner loop
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- Add additional logging to the transaction store:
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- Log each transaction added to the store
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- Log each previously unconfirmed transaction that is mined
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- [debug] Log which previous outputs are marked spent by a newly inserted
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debiting transaction
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- [debug] Log each transaction that is removed in a rollback
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- Only log rollbacks if transactions are reorged out of the old chain
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- Save logs to network-specific directories
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(e.g. ~/.btcwallet/logs/testnet3) to match btcd behavior (#114)
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Changes in 0.4.0 (Sun May 25 2014)
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- Implement the following standard bitcoin server RPC requests:
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- signmessage (https://github.com/conformal/btcwallet/issues/58)
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@ -29,7 +29,7 @@ const semanticAlphabet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqr
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// versioning 2.0.0 spec (http://semver.org/).
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const (
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appMajor uint = 0
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appMinor uint = 4
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appMinor uint = 5
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appPatch uint = 0
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// appPreRelease MUST only contain characters from semanticAlphabet
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