Hermann Seib has updated VSTHost to v1.37 and SAVIHost to v1.25.

New features for both programs:

• VST SDK 2.4 support
  NB: while the programs should support all plugins written to the new specification, they do NOT call the 64-bit processDoubleReplacing() method, even if it's available. The reason is simply that the internal signal processing is done with 32-bit floats; it would mean senseless conversions to and from 64-bit to cover the 64-bit functionality. VSTHost and SAVIHost are designed to run on older and slower machines, too, and I don't want to place heavy burdens on these by doubling all buffer sizes for a negligible improvement in sound quality.
• Various bug fixes.

Additional new features for VSTHost:

• MIDI <-> VST Parameter mapping has been enhanced. Practically all aspects of normal MIDI messages can now be used.