We have just released Live 8.1.1, the latest bugfix update.
Every Live 8 and Suite 8 owner can use this version.
Please note: If you own Suite and have already installed Suite 8.1, then you can download the Live 8.1.1 installer which has a smaller download size.
Please note: Live Lite and Live Intro are not yet supported with Live 8.1.1.
Changes from Live 8.1 to Live 8.1.1
A very short MIDI note at the beginning of a clip would not be audible. 
Recording via 'Resampling' would not properly compensate latency. 
Under certain conditions, it would be possible to get 2 Arranger tracks highlighted. 
Using the Launchpad as control surface and additionally for manual mappings would not always work properly.
When installing Live Packs which have dependencies to other content, Live would show the corresponding message twice. 
Using a Rex file could crash Live. 
'lock control surface' function would not properly work in user remote scripts. 
A particular Live set could not be loaded and would lead to a 'Invalid Product ID Error' message. 
In the Arranger, punch In/Out would delay notes by the 'punch in time' in beats. 
Using the pads of the Akai MPD18 would not work properly.
Having a Live set with particular Drum Racks could increase the CPU usage of the main thread, which would result in very slow graphical updates. 
Installing a new Library from within a second running instance of Live could crash Live. 
Certain operations like sample crop/reverse/replace would remove the tempo envelope. 
Using Novation's Launchpad, when switching between Automap and Live control would not work properly.
Under certain conditions, editing or creating parameter automation would not work properly. 
Playing a 32-bit audio file immediately after a 16-bit audio file could cause a click in the audio. 
Moving the last track out of a track group onto a closed group track in the Arranger could crash Live. 
In the Auto Pan device, switching shape to random would not show the 'Width' knob. 
Loading a Max device would crash if Pluggo was already active.
It would not be possible to create a new Project in the File Browser if the root is set to 'Workspace'.
Fine tuning of macro knobs would not work via key modifier. 
Starting clips via the Launchpad while changing parameters via mouse could crash Live. 
Moving the mouse over a certain Sampler preset could crash Live. 
Loading a Live set containing not yet authorized add-ons could crash Live. 
Under certain conditions, fade creation would not work properly. 
An Ableton preset of a third party plug-in would not change the On/Off mapping range. 
Receiving an invalid parameter index from Max could crash Live.
Inverting a macro mapping range would not work properly. 
Under certain conditions, extracting an existing groove from a clip would crash Live. 
Having a Max device sending many blob changes during saving could crash Live.
A malformed database file would interrupt user interactions like renaming files, saving presets, recording, etc. 
Having a particular Live set loaded and searching for media files could crash Live. 
On Mac OS X, under certain conditions, making Live the foreground window could lead to a crash.
The context menu of a frozen clip would have enabled audio fades commands. 
In the Arranger, changing the mixer properties like volume, pan etc. would not show the changed value in the status bar. 
Having a multi selection of Arranger track and use the 'Show Automation' command would destroy the selection. 
Choosing a custom VST directory within the preferences would not keep this new directory until the next start of Live if the required rescan leads to a crash. 
On Mac OS X, duplicating a track with Fab Filter Twin 1+2 could crash Live. 
The Looper display would use the wrong colour in 'play' mode. 
Holding SHIFT + Space Bar would make the transport play button flicker. 
The area to click on an Arranger clip would be too small by a few pixels. 
Particular Live sets, especially with a lot of transient data, could not be loaded. 
Pasting 3 unstretched and crossfaded Arranger clips could crash Live