こんにちは私の友人!
Hi everyone. If you like being on the bleeding edge of Dropbox software, this build is for you. The flagship feature of this build is LAN Sync. This means that other dropboxes and other members of your shared folders on your local network will download directly from you instead of from our servers, this makes downloading very very fast and more friendly to the public internet. :) We have also made innumerable memory and performance improvements for users who have particularly large Dropboxes. Since this build is relatively experimental, we'd appreciate all bug reports! Have fun!
0.7.4:
- Fixes to a couple issues which may have caused p2p problems
- Potential fix to Windows x64 crashes (let us know if it helps!)
- Fixes to the OS X toolbar issues (i.e. menu appears on mouse down now, image doesn't move on depress, etc.)
- Fixed regressions in 'Recently Changed' menu
- Other stability fixes
0.7.3:
- Files should download promptly now, if you were having very slow downloads.
- Context menu / bubble links are now working again.
- More accurate download/upload status.
- Fixed case where Linux machines would commit incorrect deletes.
- Fixed erroneous 'dropbang' error messages
- Lots of other minor fixes.
0.7.2:
- First public LAN Sync build
- New Dropbox toolbar buttons integrated into Explorer on Windows XP and Finder on Tiger/Leopard
- Many, many, many memory and performance improvements.
Windows: http://dl-web.getdropbox.com/u/17/Dropbox%200.7.4.exe
Mac OS X: http://dl-web.getdropbox.com/u/17/Dropbox%200.7.4.dmg
Linux x86_64: http://dl-web.getdropbox.com/u/17/dropbox-lnx.x86_64-0.7.4.tar.gz
Linux x86: http://dl-web.getdropbox.com/u/17/dropbox-lnx.x86-0.7.4.tar.gz
For an error free install on Linux, first make sure Dropbox is stopped by choosing "Stop Dropbox" from the tray icon menu. Then run the following commands in your home directory:
$ rm -r .dropbox-dist/
$ tar xzf dropbox-lnx.x86-0.7.4.tar.gz # or x86_64
Then just start Dropbox as you normally would!
edit: to reiterate, this build is indeed quite experimental :). if it's important that your dropbox is stable/reliable, I'd strongly recommend running the release candidate build: http://forums.getdropbox.com/topic.php?id=11238&replies=39
we'll be releasing builds quickly over the next couple weeks to resolve bugs.

Dave F.