Inside Bitcoin
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The code behind the network, with room to understand it.
Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.
1Bitcoin version 0.6.3 is now available for download at:2http://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-0.6.3/4This is a bug-fix release, with no new features.6Please report bugs using the issue tracker at github:7https://github.com/bitcoin/bitcoin/issues9CHANGE SUMMARY11Fixed a serious denial-of-service attack that could cause the12bitcoin process to become unresponsive. Thanks to Sergio Lerner13for finding and responsibly reporting the problem. (CVE-2012-3789)15Optimized the process of checking transaction signatures, to16speed up processing of new block messages and make propagating17blocks across the network faster.19Fixed an obscure bug that could cause the bitcoin process to get20stuck on an invalid block-chain, if the invalid chain was21hundreds of blocks long.23Bitcoin-Qt no longer automatically selects the first address24in the address book (Issue #1384).26Fixed minimize-to-dock behavior of Bitcoin-Qt on the Mac.28Added a block checkpoint at block 185,333 to speed up initial29blockchain download.
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