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Bitcoin-Qt version 0.5.1 released

15 December 2011

Bitcoin-Qt version 0.5.1 is now available for download at:

This is a bugfix-only release.

This release includes 13 translations, including 5 new translations: Italian, Hungarian, Ukranian, Portuguese (Brazilian) and Simplified Chinese. More translations are welcome; join the project at Transifex if you can help:

Please report bugs using the issue tracker at GitHub:

For Ubuntu users, there is a new ppa maintained by Matt Corallo which you can add to your system so that it will automatically keep bitcoin up-to-date. Just type

sudo apt-add-repository ppa:bitcoin/bitcoin

in your terminal, then install the bitcoin-qt package.


  • Re-enable SSL support for the JSON-RPC interface (it was unintentionally disabled for the 0.5.0 release binaries).

  • The code that finds peers via “dns seeds” no longer stops bitcoin startup if one of the dns seed machines is down.

  • Tooltips on the transaction list view were rendering incorrectly (as black boxes or with a transparent background).

  • Prevent a denial-of-service attack involving flooding a bitcoin node with orphan blocks.

  • The wallet passphrase dialog now warns you if the caps lock key was pressed.

  • Improved searching in addresses and labels in bitcoin-qt.

Go back to the version history