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diff --git a/doc/release-notes/release-notes-0.8.0.md b/doc/release-notes/release-notes-0.8.0.md new file mode 100644 index 0000000000..4e98a7740f --- /dev/null +++ b/doc/release-notes/release-notes-0.8.0.md @@ -0,0 +1,139 @@ +Bitcoin-Qt version 0.8.0 is now available from: + http://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-0.8.0/ + +This is a major release designed to improve performance and handle the +increasing volume of transactions on the network. + +Please report bugs using the issue tracker at github: + https://github.com/bitcoin/bitcoin/issues + +How to Upgrade +-------------- + +If you are running an older version, shut it down. Wait +until it has completely shut down (which might take a few minutes for older +versions), then run the installer (on Windows) or just copy over +/Applications/Bitcoin-Qt (on Mac) or bitcoind/bitcoin-qt (on Linux). + +The first time you run after the upgrade a re-indexing process will be +started that will take anywhere from 30 minutes to several hours, +depending on the speed of your machine. + +Incompatible Changes +-------------------- + +This release no longer maintains a full index of historical transaction ids +by default, so looking up an arbitrary transaction using the getrawtransaction +RPC call will not work. If you need that functionality, you must run once +with -txindex=1 -reindex=1 to rebuild block-chain indices (see below for more +details). + +Improvements +------------ + +Mac and Windows binaries are signed with certificates owned by the Bitcoin +Foundation, to be compatible with the new security features in OSX 10.8 and +Windows 8. + +LevelDB, a fast, open-source, non-relational database from Google, is +now used to store transaction and block indices. LevelDB works much better +on machines with slow I/O and is faster in general. Berkeley DB is now only +used for the wallet.dat file (public and private wallet keys and transactions +relevant to you). + +Pieter Wuille implemented many optimizations to the way transactions are +verified, so a running, synchronized node uses less working memory and does +much less I/O. He also implemented parallel signature checking, so if you +have a multi-CPU machine all CPUs will be used to verify transactions. + +New Features +------------ + +"Bloom filter" support in the network protocol for sending only relevant transactions to +lightweight clients. + +contrib/verifysfbinaries is a shell-script to verify that the binary downloads +at sourceforge have not been tampered with. If you are able, you can help make +everybody's downloads more secure by running this occasionally to check PGP +signatures against download file checksums. + +contrib/spendfrom is a python-language command-line utility that demonstrates +how to use the "raw transactions" JSON-RPC api to send coins received from particular +addresses (also known as "coin control"). + +New/changed settings (command-line or bitcoin.conf file) +-------------------------------------------------------- + +dbcache : controls LevelDB memory usage. + +par : controls how many threads to use to validate transactions. Defaults to the number +of CPUs on your machine, use -par=1 to limit to a single CPU. + +txindex : maintains an extra index of old, spent transaction ids so they will be found +by the getrawtransaction JSON-RPC method. + +reindex : rebuild block and transaction indices from the downloaded block data. + +New JSON-RPC API Features +------------------------- + +lockunspent / listlockunspent allow locking transaction outputs for a period of time so +they will not be spent by other processes that might be accessing the same wallet. + +addnode / getaddednodeinfo methods, to connect to specific peers without restarting. + +importprivkey now takes an optional boolean parameter (default true) to control whether +or not to rescan the blockchain for transactions after importing a new private key. + +Important Bug Fixes +------------------- + +Privacy leak: the position of the "change" output in most transactions was not being +properly randomized, making network analysis of the transaction graph to identify +users' wallets easier. + +Zero-confirmation transaction vulnerability: accepting zero-confirmation transactions +(transactions that have not yet been included in a block) from somebody you do not +trust is still not recommended, because there will always be ways for attackers to +double-spend zero-confirmation transactions. However, this release includes a bug +fix that makes it a little bit more difficult for attackers to double-spend a +certain type ("lockTime in the future") of zero-confirmation transaction. + +Dependency Changes +------------------ + +Qt 4.8.3 (compiling against older versions of Qt 4 should continue to work) + + +Thanks to everybody who contributed to this release: +---------------------------------------------------- + +Alexander Kjeldaas +Andrey Alekseenko +Arnav Singh +Christian von Roques +Eric Lombrozo +Forrest Voight +Gavin Andresen +Gregory Maxwell +Jeff Garzik +Luke Dashjr +Matt Corallo +Mike Cassano +Mike Hearn +Peter Todd +Philip Kaufmann +Pieter Wuille +Richard Schwab +Robert Backhaus +Rune K. Svendsen +Sergio Demian Lerner +Wladimir J. van der Laan +burger2 +default +fanquake +grimd34th +justmoon +redshark1802 +tucenaber +xanatos |