UPDATE: FL Studio 9.8.0 Public Beta Now Available

The current stable release is FL Studio 9.1, but if you're a little adventurous and want to try out some of the new features that will be in 10.x then you might like to download this from http://forum.image-line.com/viewtopic.php?t=60223

If you find any bugs you're asked to report them at http://forum.image-line.com/viewforum.php?f=100

Here's an oveview of some of what's new in 9.6:

Here is the complete changelog for 9.6.0....

Additions:
Reworked piano roll (vertical zoom).
Mute tool now flips mute state on a whole row when used on side keyboard in piano roll.
Pause key now pauses playback (like ctrl+space).
Added basic support (transport controls) for Kontrolux keyboard.
Added "remember seek time" option (right-click stop button).
Improved deleting of overlapping notes/clips (now only deletes the top one).
Added waveform display helper (Alt+N) to piano roll/event editor (drop sample onto them).
Improved zooming from side keyboard in piano roll.
Added optional more precise playback indicator in PR/PL/EE (view menu).
Alt+click or X2 button on ghosted notes switches to the note's channel.
Shift+wheel now moves channels, mixer tracks, playlist tracks & patterns (in step seq selector) around.
Improved autoscrolling when moving events around.
Song loop marker becomes song loop mode for normal markers, right click freed on time bar.
New handle to rescale scores.
PR's note hint now also adds key name & MIDI note #.
Added "Assign all to->MPC/Trigger Finger/padKontrol pads" option in Slicex.
Improved zooming/scrolling/grids in FL (no more zoom selector) & several plugins.

Bugfixes:
(public beta) Fixed bug when pressing F2/F3 in name edits without color selection.
Fixed bug relocating in a piano roll in song mode.
Fixed new bug in Harmless'es self-osc.
Fixed long pause when relocating mixer tracks on dual cores.
Wrapper: Fixed info flags bug that caused shell plugins to fail to load
Wrapper: Removed some log entries that caused slowdowns
Wrapper: Fixed loading/saving settings when switching to and from bridged mode
Wrapper: Various fixes loading plugin settings
Wrapper: Fixed crash with bridged Crystal VST
Wrapper: Fixed loading Waves plugins from settings
Wrapper: Support interfaceless VST3 plugins
Wrapper: Properly set plugin name when loading a VST3 subplugin
Wrapper: Fixed freeze in BitterSweet II
Wrapper: Various changes in bridge to prevent freezes
Wrapper: Hide editor windows when showing options window instead of closing them
Wrapper: Fixed some memory leaks
Wrapper: Fixed note velocity for VST 3 plugins
Wrapper: Fixed locating a 64bit plugin from settings
Downloader: Fixed crash when using prev preset function
Downloader: Fixed installation "error [0]"
Downloader: Fixed update of list from within plugin
Downloader: Fixed listing user items
Downloader: Fixed showing unrelated paths for lists that had "FL" download location
FL Studio VSTi: Fixed "no audio" bug when loading FL VSTi from file in Studio One
DirectWave: Fixed loading of compressed wave files
FPC: Notify FL of changed semitone names when loading a mapping

Related News:
PreSonus Studio One v3
FL Studio 10.5 Beta with Performance Mode
FL Studio for Android in Development