doc: add preliminary release notes for 0.9.0
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Wladimir J. van der Laan
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(note: this is a temporary file, to be added-to by anybody, and moved to
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Bitcoin Core version 0.9.0rc1 is now available from:
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release-notes at release time)
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http://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-0.9.0rc1/
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This is a release candidate for a new major version. A major version brings both
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new features and bug fixes.
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Please report bugs using the issue tracker at github:
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https://github.com/bitcoin/bitcoin/issues
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How to Upgrade
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--------------
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If you are running an older version, shut it down. Wait
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until it has completely shut down (which might take a few minutes for older
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versions), uninstall all earlier versions of Bitcoin,
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then run the installer (on Windows) or just copy over
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/Applications/Bitcoin-Qt (on Mac) or bitcoind/bitcoin-qt (on Linux).
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If you are upgrading from version 0.7.2 or earlier, the first time you
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run 0.9.0 your blockchain files will be re-indexed, which will take
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anywhere from 30 minutes to several hours, depending on the speed of
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your machine.
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On Windows, do not forget to uninstall all earlier versions of the Bitcoin
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client first, especially if you are switching to the 64-bit version.
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Windows 64-bit installer
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-------------------------
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New in 0.9.0 is the Windows 64-bit version of the client.
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There have been frequent reports of users running out of virtual memory on 32-bit systems
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during the initial sync. Because of this it is recommended to install the 64-bit version if
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your system supports it.
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Rebranding to Bitcoin Core
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---------------------------
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To reduce confusion between Bitcoin-the-network and Bitcoin-the-software we have
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renamed the reference client to Bitcoin Core.
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Autotools build system
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-----------------------
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For 0.9.0 we switched to an autotools-based build system instead of individual
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(q)makefiles.
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Using the standard “./autogen.sh; ./configure; make” to build Bitcoin-Qt and
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bitcoind makes it easier for experienced open source developers to contribute
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to the project.
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Be sure to check doc/build-*.md for your platform before building from source.
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Bitcoin-cli
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-------------
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Another change in the 0.9 release is moving away from the
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bitcoind executable functioning both as a server and as a RPC client. The RPC
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client functionality (“tell the running bitcoin daemon to do THIS”) was split
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into a separate executable, 'bitcoin-cli'. The RPC client code will
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eventually be removed from bitcoind, but will be kept for backwards
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compatibility for a release or two.
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0.9.0rc1 Release notes
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=======================
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RPC:
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- 'listreceivedbyaddress' now provides tx ids
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- Updated help and tests for 'getreceivedby(account|address)'
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- In 'getblock', accept 2nd 'verbose' parameter, similar to getrawtransaction, but defaulting to 1 for backward compatibility
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- Add 'verifychain', to verify chain database at runtime
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- Add 'dumpwallet' and 'importwallet' RPCs
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- 'keypoolrefill' gains optional size parameter
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- Add 'getbestblockhash', to return tip of best chain
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- Add 'chainwork' (the total work done by all blocks since the genesis block) to 'getblock' output
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- Make RPC password resistant to timing attacks
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- Clarify help messages and add examples
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- Add 'getrawchangeaddress' call for raw transaction change destinations
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- Reject insanely high fees by default in 'sendrawtransaction'
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- Add RPC call 'decodescript' to decode a hex-encoded transaction script
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- Make 'validateaddress' provide redeemScript
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- Add 'getnetworkhashps' to get the calculated network hashrate
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- New RPC 'ping' command to request ping, new 'pingtime' and 'pingwait' fields in 'getpeerinfo' output
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- Adding new 'addrlocal' field to 'getpeerinfo' output
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- Add verbose boolean to 'getrawmempool'
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- Add rpc command 'getunconfirmedbalance' to obtain total unconfirmed balance
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- Explicitly ensure that wallet is unlocked in `importprivkey`
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- Add check for valid keys in `importprivkey`
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Command-line options:
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- Rename option '-tor' to '-onion' to better reflect what it does
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- Add '-disablewallet' mode to let bitcoind run entirely without wallet (when
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built with wallet)
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- Update default '-rpcsslciphers' to include TLSv1.2
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- make '-logtimestamps' default on and rework help-message
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- RPC client option: '-rpcwait', to wait for server start
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- Remove '-logtodebugger'
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- Allow `-noserver` with bitcoind
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Block-chain handling and storage:
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- Update leveldb to 1.15
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- Check for correct genesis (prevent cases where accidentally a datadir from the wrong network is loaded)
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- Allow txindex to be removed and add a reindex dialog
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- Log aborted block database rebuilds
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- Store orphan blocks in serialized form, to save memory
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- Fix non-standard disconnected transactions causing mempool orphans
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- Add a new checkpoint at block 279,000
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Wallet:
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- Store key creation time. Calculate whole-wallet birthday.
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- Optimize rescan to skip blocks prior to birthday
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- Let user select wallet file with -wallet=foo.dat
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- Consider generated coins mature at 101 instead of 120 blocks
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- Improve wallet load time
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- Don't count txins for priority to encourage sweeping
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- Don't create empty transactions when reading a corrupted wallet
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- Fix rescan to start from beginning after importprivkey
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Mining:
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- Increase default -blockmaxsize/prioritysize to 750K/50K
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- 'getblocktemplate' does not require a key to create a block template
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Protocol and network:
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- Send tx relay flag with version
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- New 'reject' P2P message (BIP 0061)
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- Dump addresses every 15 minutes instead of 10 seconds
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- Relay OP_RETURN data TxOut as standard transaction type
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- Remove CENT-output free transaction rule when relaying
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- Lower maximum size for free transaction creation
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- Send multiple inv messages if mempool.size > MAX_INV_SZ
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- Split MIN_PROTO_VERSION into INIT_PROTO_VERSION and MIN_PEER_PROTO_VERSION
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- Do not treat fFromMe transaction differently when broadcasting
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- Process received messages one at a time without sleeping between messages
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- Improve logging of failed connections
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- Bump protocol version to 70002
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- Add some additional logging to give extra network insight
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- Added new DNS seed from bitcoinstats.com
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Validation:
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- Log reason for non-standard transaction rejection
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- Prune provably-unspendable outputs
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- Detect any sufficiently long fork and add a warning.
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- Call the -alertnotify script when we see a long or invalid fork.
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- Fix multi-block reorg transaction resurrection
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- Reject non-canonically-encoded serialization sizes
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- Only create signatures with even S, and verification mode to check.
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- Reject dust amounts during validation
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- Use 'low S' as malleability breaker rather than 'even S'
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- Skip unspendable outputs in consistency check
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- Generalize the remove-outputs check for fully-prunable transactions
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- Accept nLockTime transactions that finalize in the next block"
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Build system:
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- Switch to autotools-based build system
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- Build without wallet by passing `--disable-wallet` to configure, this
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removes the BerkeleyDB dependency
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- Upgrade gitian dependencies (libpng, libz, libupnpc, boost, openssl) to more recent versions
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- Windows 64-bit build support
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- Solaris compatibility fixes
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- Check integrity of gitian input source tarballs
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- Enable full GCC Stack-smashing protection for all OSes
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GUI:
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- Switch to Qt 5.2.0 for Windows build
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- Add payment request (BIP 0070) support
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- Improve options dialog
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- Show transaction fee in new send confirmation dialog
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- Add total balance in overview page
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- Allow user to choose data directory on first start, when data directory is
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missing, or when the -choosedatadir option is passed
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- Save and restore window positions
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- Add vout index to transaction id in transactions details dialog
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- Add network traffic graph in debug window
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- Add open URI dialog
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- Add Coin Control Features
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- Improve receive coins workflow: make the 'Receive' tab into a form to
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request payments, and move historical address list functionality to File menu.
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- Rebrand to `Bitcoin Core`
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- Move initialization/shutdown to a thread. This prevents "Not responding" messages during start.
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Also show a window during shutdown.
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- Don't regenerate autostart link on every client startup
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- Show and store message of normal bitcoin:URI
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- Fix richtext detection hang issue on very old Qt versions
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- osx: make use of the 10.8+ user notification center to display growl like notifications
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- osx: Added NSHighResolutionCapable flag to Info.plist for better font rendering on Retina displays.
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- osx: fix bitcoin-qt startup crash when clicking dock icon
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- linux: Fix Gnome bitcoin: URI handler
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Miscellaneous:
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- Add Linux script (contrib/qos/tc.sh) to limit outgoing bandwidth used by Bitcoin
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- Add '-regtest' mode, similar to testnet but private with instant block
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generation with 'setgenerate' RPC.
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- Add 'linearize.py' script to contrib, for creating bootstrap.dat
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- Add separate bitcoin-cli client
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Credits
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--------
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Thanks to everyone who contributed to this release:
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- Andrey
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- bitsofproof
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- Brandon Dahler
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- Christian Decker
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- Christopher Latham
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- Chuck
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- coblee
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- constantined
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- Cory Fields
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- Cozz Lovan
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- Daniel Larimer
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- David Hill
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- Dmitry Smirnov
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- Eric Lombrozo
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- fanquake
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- fcicq
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- Florin
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- Gavin Andresen
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- Gregory Maxwell
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- Guillermo Céspedes Tabárez
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- HaltingState
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- Han Lin Yap
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- harry
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- Jeff Garzik
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- Johnathan Corgan
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- Jonas Schnelli
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- Josh Lehan
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- Josh Triplett
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- Julian Langschaedel
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- Kangmo
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- Lake Denman
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- Luke Dashjr
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- Mark Friedenbach
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- Matt Corallo
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- Michael Bauer
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- Michael Ford
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- Michagogo
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- Mike Hearn
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- Nils Schneider
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- Olivier Langlois
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- patrick s
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- Patrick Strateman
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- Peter Todd
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- phantomcircuit
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- phelixbtc
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- Philip Kaufmann
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- Pieter Wuille
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- Rav3nPL
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- regergregregerrge
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- Robert Backhaus
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- Roman Mindalev
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- Rune K. Svendsen
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- Ryan Niebur
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- Scott Ellis
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- Scott Willeke
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- Sergey Kazenyuk
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- Shawn Wilkinson
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- Sined
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- sje
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- super3
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- Tamas Blummer
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- theuni
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- Thomas Holenstein
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- Timon Rapp
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- Timothy Stranex
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- Vaclav Vobornik
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- vhf / victor felder
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- Vinnie Falco
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- Warren Togami
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- Wladimir J. van der Laan
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