Bitcoin QT wallet upgrade

C:\Documents and Settings\YourUserName\Application data\Bitcoin (XP)

C:\Users\YourUserName\Appdata\Roaming\Bitcoin (Vista and 7)

The easiest way to open your appdata folder is to press Windows Key-R, then type %appdata% and hit enter.

Linux

~/.bitcoin/

Mac

~/Library/Application Support/Bitcoin/

Then install the new version in the regular manner. The new client should use your previous settings (including the wallet and the blockchain data).

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