# Gavin Andresen
# 2011-09-23 15:41:40
# https://bitcointalk.org/index.php?topic=45410.msg541446#msg541446

Bitcoin version 0.4.0 is now available for download at: @p{brk}
  @s{(link)} @p{par}

The main feature in this release is wallet private key encryption; @p{brk}
you can set a passphrase that must be entered before sending coins. @p{brk}
See below for more information; if you decide to encrypt your wallet, @p{brk}
WRITE DOWN YOUR PASSPHRASE AND PUT IT IN A SECURE LOCATION. If you @p{brk}
forget or lose your wallet passphrase, you lose your bitcoins. @p{brk}
Previous versions of bitcoin are unable to read encrypted wallets, @p{brk}
and will crash on startup if the wallet is encrypted. @p{par}

Also note: bitcoin version 0.4 uses a newer version of Berkeley DB @p{brk}
(bdb version 4.8) than previous versions (bdb 4.7). If you upgrade @p{brk}
to version 0.4 and then revert back to an earlier version of bitcoin @p{brk}
the it may be unable to start because bdb 4.7 cannot read bdb 4.8 @p{brk}
"log" files. @p{par}

Notable bug fixes from version 0.3.24: @p{brk}
@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{--} @p{par}

Fix several bitcoin-becomes-unresponsive bugs due to multithreading @p{brk}
deadlocks. @p{par}

Optimize database writes for large (lots of inputs) transactions @p{brk}
(fixes a potential denial-of-service attack) @p{par}

 @p{par}

Wallet Encryption @p{brk}
@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{--} @p{brk}
Bitcoin supports native wallet encryption so that people who steal your @p{brk}
wallet file don't automatically get access to all of your Bitcoins. @p{brk}
In order to enable this feature, choose "Encrypt Wallet" from the @p{brk}
Options menu.  You will be prompted to enter a passphrase, which @p{brk}
will be used as the key to encrypt your wallet and will be needed @p{brk}
every time you wish to send Bitcoins.  If you lose this passphrase, @p{brk}
you will lose access to spend all of the bitcoins in your wallet, @p{brk}
no one, not even the Bitcoin developers can recover your Bitcoins. @p{brk}
This means you are responsible for your own security, store your @p{brk}
passphrase in a secure location and do not forget it. @p{par}

Remember that the encryption built into bitcoin only encrypts the @p{brk}
actual keys which are required to send your bitcoins, not the full @p{brk}
wallet.  This means that someone who steals your wallet file will @p{brk}
be able to see all the addresses which belong to you, as well as the @p{brk}
relevant transactions, you are only protected from someone spending @p{brk}
your coins. @p{par}

It is recommended that you backup your wallet file before you @p{brk}
encrypt your wallet.  To do this, close the Bitcoin client and @p{brk}
copy the wallet.dat file from ~/.bitcoin/ on Linux, /Users/(user @p{brk}
name)/Application Support/Bitcoin/ on Mac OSX, and %APPDATA%/Bitcoin/ @p{brk}
on Windows (that is /Users/(user name)/AppData/Roaming/Bitcoin on @p{brk}
Windows Vista and 7 and /Documents and Settings/(user name)/Application @p{brk}
Data/Bitcoin on Windows XP).  Once you have copied that file to a @p{brk}
safe location, reopen the Bitcoin client and Encrypt your wallet. @p{brk}
If everything goes fine, delete the backup and enjoy your encrypted @p{brk}
wallet.  Note that once you encrypt your wallet, you will never be @p{brk}
able to go back to a version of the Bitcoin client older than 0.4. @p{par}

Keep in mind that you are always responsible for your own security. @p{brk}
All it takes is a slightly more advanced wallet-stealing trojan which @p{brk}
installs a keylogger to steal your wallet passphrase as you enter it @p{brk}
in addition to your wallet file and you have lost all your Bitcoins. @p{brk}
Wallet encryption cannot keep you safe if you do not practice @p{brk}
good security, such as running up-to-date antivirus software, only @p{brk}
entering your wallet passphrase in the Bitcoin client and using the @p{brk}
same passphrase only as your wallet passphrase. @p{par}

See the doc/README file in the bitcoin source for technical details @p{brk}
of wallet encryption. @p{par}

Signed SHA1 checksums of the binary release files: @p{brk}
@p{@p{--}-}@p{--}BEGIN PGP SIGNED MESSAGE@p{@p{--}-}@p{--} @p{brk}
Hash: SHA1 @p{par}

25c3ec9683d62235afea24d4a147d4616d8a884f  bitcoin-0.4.0-linux.tar.gz @p{brk}
a800d9fa4aa61527e598708f4ace7f855c22a46b  bitcoin-0.4.0-macosx.dmg @p{brk}
1d2c8d82ede5e8aa9f83b59da07e443de89c5c8f  bitcoin-0.4.0-src.tar.gz @p{brk}
ecf1304ff467bd30dc668b3dadff3044c3c86df1  bitcoin-0.4.0-win32-setup.exe @p{brk}
6034efe23e4bd76b0860f633e81710cd66d499db  bitcoin-0.4.0-win32.zip @p{brk}
@p{@p{--}-}@p{--}BEGIN PGP SIGNATURE@p{@p{--}-}@p{--} @p{brk}
Version: GnuPG v1.4.9 (Darwin) @p{par}

iEYEARECAAYFAk58n20ACgkQdYgkL74406ibEACgzyZj86lsQORi5HTs/N3ABCes @p{brk}
Pg8AoKFXU1vxiZI9qZOQ5ZET60ewcynW @p{brk}
=sY+Q @p{brk}
@p{@p{--}-}@p{--}END PGP SIGNATURE@p{@p{--}-}@p{--} @p{par}

 @p{brk}
Full changelog ("git shortlog @p{--}no-merges v0.3.24..") @p{brk}
@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{@p{--}-}@p{--} @p{brk}
Abraham Jewowich (1): @p{brk}
      Fix bug with accessing vchData[0] when vchData is empty.     Fix typo in CBase58Data::CompareTo @p{par}

Alex B (2): @p{brk}
      Romanian translation added @p{brk}
      Spanish translation update @p{par}

Alex Waters (1): @p{brk}
      Updated readme file @p{par}

Daniel Folkinshteyn (1): @p{brk}
      Update the list of seednodes. @p{par}

Dawid Spiechowicz (1): @p{brk}
      added polish wallet encryption messages @p{par}

Dean Lee (1): @p{brk}
      Update to the Chinese Simp translation @p{par}

Dev Random (4): @p{brk}
      Linux gitian config with separate wxWidgets build @p{brk}
      Mingw gitian with separate wxWidgets and boost @p{brk}
      Mingw gitian build with deterministic bitcoin.exe by use of faketime @p{brk}
      Add Gitian Build descriptors for Boost and wxWidgets. @p{par}

Doug Huff (1): @p{brk}
      Make mlock() and munlock() portable to systems that require the address to be on a page boundary. @p{par}

Dylan Noblesmith (1): @p{brk}
      mlock() all private keys in memory @p{par}

Eric Hosmer (1): @p{brk}
      Added crypter to makefile.vc. @p{par}

Fabian H jr. (1): @p{brk}
      Updated checkpoints, maybe Tx fee should be reduced to 0.0001 from 0.0005 and maximum minimum tx should be 0.0010. @p{par}

Gavin Andresen (24): @p{brk}
      Do-nothing MapPort() ifndef USE_UPNP.  fixes #450 @p{brk}
      Don't std::advance past beginning of transactions array.  Fixes #465 @p{brk}
      Remove unused ScanMessageStart function @p{brk}
      Compile with DEBUG_LOCKORDER to detect inconsistent lock orderings that can cause deadlocks @p{brk}
      CHECKMULTISIG unit tests. @p{brk}
      Highlight mis-matching locks @p{brk}
      Fix rpc-hanging deadlocks @p{brk}
      Fixed potential deadlocks in GUI code.     Also changed semantics of CWalletTx::GetTxTime(); now always returns the time the transaction was received by this node, not the average block time.     And added information about -DDEBUG_LOCKORDER to coding.txt. @p{brk}
      Fix typo ("you own security") @p{brk}
      SetCrypted() obtains keystore lock, to be safe. @p{brk}
      Logic running with -keypool=0 was wrong (empty keys were being returned). Fixes #445 @p{brk}
      Fix RPC call name in error message. @p{brk}
      obtain cs_wallet mutex to protect vchDefaultKey @p{brk}
      Fixed regression I introduced: wallets with lots of transactions were unusable in GUI. @p{brk}
      Fix bad merge: getaccountaddress was broken for new accounts @p{brk}
      Give hard-coded seed nodes a random last-seen time, to randomize order they're tried. @p{brk}
      Do not try to download blockchain from 0.3.23 nodes @p{brk}
      If compiled -DDEBUG_LOCKORDER and run with -debug, print out every mutex lock/unlock (helpful for debugging something-is-holding-a-mutex-too-long problems) @p{brk}
      Stay connected to seed nodes; disconnecting causes problems if you are trying to make the initial blockchain download. @p{brk}
      Versions 0.3.20 THROUGH 0.3.23 have trouble with blockchain downloads; avoid them @p{brk}
      Bumped version numbers to 0.4.0rc1 @p{brk}
      Optimize database writes for transactions with lots of TxIns.     Patch from ArtForz, who discovered the problem. @p{brk}
      Fix AddAddress cs_mapaddresses/db transaction deadlock @p{brk}
      Fix QA email address @p{par}

Giel van Schijndel (15): @p{brk}
      fix warning on 64bit systems: cast to pointer from integer of different size [-Wint-to-pointer-cast] @p{brk}
      fix warnings: expression result unused [-Wunused-value] @p{brk}
      fix warnings: using the result of an assignment as a condition without parentheses [-Wparentheses] @p{brk}
      fix warning: comparison of unsigned expression @p{lt} 0 is always false [-Wtautological-compare] @p{brk}
      fix warning: X enumeration values not handled in switch [-Wswitch-enum] @p{brk}
      fix warning: unused variable 'X' [-Wunused-variable] @p{brk}
      fix warning: unused function 'SigIllHandlerSSE2' [-Wunused-function] @p{brk}
      fix warning: variable ‘nMinDepth’ set but not used [-Wunused-but-set-variable] @p{brk}
      fix warning: control reaches end of non-void function [-Wreturn-type] @p{brk}
      Make some global variables less-global (static) @p{brk}
      Cleanup makefiles such that diffs to them are smaller @p{brk}
      Move func 'REF' from util.h to serialize.h @p{brk}
      Start moving protocol-specific code to protocol.[ch]pp @p{brk}
      Move CAddress to protocol.[ch]pp @p{brk}
      Move CInv to protocol.[ch]pp @p{par}

Han Lin Yap (2): @p{brk}
      Comment "deprecated" @p{brk}
      Add a note to only include .po file @p{par}

Jay Weisskopf (4): @p{brk}
      Add logos/branding currently found on bitcoin.org into NSIS installer. @p{brk}
      Set default compression for NSIS installer to LZMA. @p{brk}
      Remove NSIS branding from bottom divider. @p{brk}
      Increase resolution of Windows icon. @p{par}

Jeff Garzik (8): @p{brk}
      Update CWallet::LoadWallet for proper return type. @p{brk}
      Bump version to 0.3.25 @p{brk}
      doc/README: word wrap into something readable @p{brk}
      CAddrDB::LoadAddresses: properly initialize CAddress @p{brk}
      src/makefile.unix: remove -DFOURWAYSSE2 @p{brk}
      Add reference python miner, in contrib/pyminer/ @p{brk}
      README.md: word wrap text file @p{brk}
      Revert "Define MSG_NOSIGNAL to 0 on platforms where it is unavailable." @p{par}

Jeroenz0r (1): @p{brk}
      Translation from "Open Bitcoin" to "Verstuur Bitcoins" @p{par}

JoelKatz (1): @p{brk}
      Fix UNIX-specific thread handle leak. @p{par}

Johannes Henninger (1): @p{brk}
      Identify as "Bitcoin + version number" when mapping UPnP port @p{par}

Luke Dashjr (7): @p{brk}
      Update nTime after nExtraNonce to avoid potential race     (extraNonce being reset due to just-occurred time change after nTime is set) @p{brk}
      Reset extraNonce only every 15 seconds, just in case some miner is updating time himself and stuff @p{brk}
      Reset extraNonce only when prevBlock changes, so miners can continue updating the time on their work until it's stale @p{brk}
      Support for boost filesystem version 3 @p{brk}
      ignore stuff @p{brk}
      Save coinbase, not just extraNonce @p{brk}
      Bugfix: Use timestamp in coinbase rather than "bits", needed to ensure coinbase txn is unique even if address is the same @p{par}

Matt Corallo (35): @p{brk}
      Add minversion to wallet. @p{brk}
      Add wallet privkey encryption. @p{brk}
      Set the number of SHA512 rounds based on the speed of the computer. @p{brk}
      Push unlocked_until in getinfo. @p{brk}
      Dynamically remove/insert the Options for encryption in the menus. @p{brk}
      Add the walletlock RPC method to lock the wallet manually. @p{brk}
      Add Wallet Encryption section to README @p{brk}
      Use DB Transactions when encrypting wallet.     This speeds up the encryption process significantly. @p{brk}
      Make an invalid addrIncoming so that old clients crash. @p{brk}
      Update makefile.linux-mingw to work with crypter and UPnP fix. @p{brk}
      Fix makefile.linux-mingw @p{brk}
      Fix crashes when a wallet is locked and GetReservedKey() is called @p{brk}
      Generate Warning when using default key. @p{brk}
      Fix Build in GetReservedKey() in wallet.cpp @p{brk}
      Fix bad return values in LoadWallet. @p{brk}
      Actually use mapAlreadyAskedFor. @p{brk}
      Fix EncryptKeys crash introduced by a9ba4710, identified by TD. @p{brk}
      Check for duplicate txins in CheckTransaction. @p{brk}
      Make it clear that setting proxy requires restart to fully apply. @p{brk}
      Don't listen if on TOR (resolves #441). @p{brk}
      Add missing include to serialize.h @p{brk}
      Add file for transaction tests. @p{brk}
      Cleanup test suite output to be more useful. @p{brk}
      Unify copyright notices. @p{brk}
      Missed a 'password' should be 'passphrase'. @p{brk}
      Fix incorrect RPC error messages @p{brk}
      Add specific wallet encryption details to doc/README @p{brk}
      Upgrade dependancies and tweak build process. @p{brk}
      Update binary mos to latest translations. @p{brk}
      Fix build process to actually work. @p{brk}
      Add binary mo for new translation. @p{brk}
      Update gitian build descriptors to produce proper builds. @p{brk}
      Update bitcoin icon to make nsis setup exe deterministic. @p{brk}
      Update binary mo to match latest po translation. @p{brk}
      Restructure gitian files and add download config files. @p{par}

Michael Bemmerl (4): @p{brk}
      Basically some grammatical fixes of the German translation. @p{brk}
      Added German wallet encryption messages translation. @p{brk}
      Changed Russian translation according to comment in issue 395 @p{brk}
      Updated German translation @p{par}

Michal Zima (1): @p{brk}
      Updated czech translation @p{par}

Nils Schneider (2): @p{brk}
      log low-level network messages only when fDebug is set @p{brk}
      missed printf in AbortMessage(); merged printfs in EndMessage @p{par}

Patrick Varilly (1): @p{brk}
      Single DB transaction for all addresses in a message @p{par}

Pieter Wuille (11): @p{brk}
      Prepare codebase for Encrypted Keys. @p{brk}
      Do not use obsolete CPrivKey for passing keys around @p{brk}
      Bugfix: add autogenerated addresses to address book @p{brk}
      get rid of mapPubKeys @p{brk}
      Use CBitcoinAddress instead of string/uint160 @p{brk}
      split off CBase58Data from CBitcoinAddress @p{brk}
      Fix for small change outputs @p{brk}
      Bugfix: don't overuse limited ExtractAddress @p{brk}
      avoid strAddress + validity checks @p{brk}
      SocketHandler thread can be detached @p{brk}
      Updated dutch translation @p{par}

Stéphane Gimenez (1): @p{brk}
      Single DB transaction for addresses from DNS seeds @p{par}

Vegard Nossum (6): @p{brk}
      Add missing includes to key.h @p{brk}
      Add missing include to script.h @p{brk}
      Add missing includes to net.h @p{brk}
      Fix testing setup @p{brk}
      Add prototype for EvalScript() to script.h @p{brk}
      Add a file for script tests @p{par}

Venkatesh Srinivas (4): @p{brk}
      Test for SO_NOSIGPIPE rather than assuming all BSDs support it. @p{brk}
      Qualify make_tuple with boost:: namespace. @p{brk}
      Use 'unsigned char' rather than 'char' for pchMessageStart. @p{brk}
      Define MSG_NOSIGNAL to 0 on platforms where it is unavailable. @p{par}

Wladimir J. van der Laan (2): @p{brk}
      remove magic number: change threshold for nLockTime to constant @p{brk}
      make SetHash160 return a value (as specified in the function signature) @p{par}

cjdelisle (1): @p{brk}
      wxWidgets needs to be at least version 2.9.1 because wallet crypto uses ToStdString() which is not in 2.9.0 @p{par}

ovdeathiam (1): @p{brk}
      Edited locale/pl/LC_MESSAGES/bitcoin.po via GitHub @p{brk}