Changelist 20-25

Native planar YV12 support.
Multiple audiochannels. Unlimited number of channels is now supported.
Float samples support. AviSynth is now capable of processing samples as floats.
Automatic sample conversion. If some filters doesn't support a specific sample type, they are converted to the format preserving most quality (most often floats).
Optimizations. Many basic features has been optimized, and now performs much better than previous versions.
TemporalSoften has a significant speed improvement, scenechange detection and a new improved blend mode.
Limiter can limit the YUV ranges, to avoid invalid color values and improve compression.
ColorYUV makes it possible to do very exact color corrections. ColorYUV has built-in auto-whitebalance and auto-gain features.
Select separate planes using UToY, VToY and merge them together again, using YToUV.
FlipHorizontal. implemented.
SelectRangeEvery is now part of the core functions.
Blur, Sharpen, Resize optimized.
Fast XviD colorspace conversions.
See clip info using the Info command.