Bitcoin-Qt version 0.8.6 is now available from: http://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-0.8.6/
This is a maintenance release to fix a critical bug; we urge all users to upgrade.
Please report bugs using the issue tracker at github: https://github.com/bitcoin/bitcoin/issues
How to Upgrade
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer (on Windows) or just copy over /Applications/Bitcoin-Qt (on Mac) or bitcoind/bitcoin-qt (on Linux).
If you are upgrading from version 0.7.2 or earlier, the first time you run 0.8.6 your blockchain files will be re-indexed, which will take anywhere from 30 minutes to several hours, depending on the speed of your machine.
0.8.6 Release notes
-
Default block size increase for miners. (see https://gist.github.com/gavinandresen/7670433#086-accept-into-block)
-
Remove the all-outputs-must-be-greater-than-CENT-to-qualify-as-free rule for relaying (see https://gist.github.com/gavinandresen/7670433#086-relaying)
-
Lower maximum size for free transaction creation (see https://gist.github.com/gavinandresen/7670433#086-wallet)
- OSX block chain database corruption fixes
- Update leveldb to 1.13
- Use fcntl with
F_FULLSYNCinstead of fsync on OSX - Use native Darwin memory barriers
- Replace use of mmap in leveldb for improved reliability (only on OSX)
-
Fix nodes forwarding transactions with empty vins and getting banned
-
Network code performance and robustness improvements
-
Additional debug.log logging for diagnosis of network problems, log timestamps by default
-
Fix Bitcoin-Qt startup crash when clicking dock icon on OSX
-
Fix memory leaks in CKey::SetCompactSignature() and Key::SignCompact()
-
Fix rare GUI crash on send
- Various small GUI, documentation and build fixes
Warning
- There have been frequent reports of users running out of virtual memory on 32-bit systems during the initial sync. Hence it is recommended to use a 64-bit executable if possible. A 64-bit executable for Windows is planned for 0.9.
