0.8.6 Release notes
===================
- Default block size increase for miners.
(see
https://gist.github.com/gavinandresen/7670433#086-accept-into-block [Domain=gist.github.com] )
- 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 [Domain=gist.github.com] )
- Lower maximum size for free transaction creation
(see
https://gist.github.com/gavinandresen/7670433#086-wallet [Domain=gist.github.com] )
- OSX block chain database corruption fixes
- Update leveldb to 1.13
- Use fcntl with `F_FULLSYNC` instead 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
