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Bitcoin-Qt 0.8.3

Bitcoin-Qt version 0.8.3 is now available from:

This is a maintenance release to fix a denial-of-service attack that can cause nodes to crash.

Please report bugs using the issue tracker at github:

0.8.3 Release notes

  • Truncate over-size messages to prevent a memory exhaustion attack.

  • Fix a regression that causes excessive re-writing of the 'peers.dat' file.

Thanks to Peter Todd for responsibly disclosing the vulnerability ( CVE-2013-4627 ) and creating a fix.