Reaper 4.76

REAPER converts your computer into the full power of any top-of-the-line recording studio. Minus, of course, a room full of shockingly expensive converters, microphones, amplifiers, and, well, talent. REAPER works with almost any hardware and can be used in combination with a vast universe of other software and plug-ins. Take advantage of REAPER's full functionality using only your current computer and a microphone, or use REAPER to drive an entire professional recording studio.

REAPER features:

Record audio and MIDI from multiple inputs simultaneously
Layer recorded tracks and takes over previous recordings
Edit recordings in almost any imaginable way
Hundreds of audio and MIDI processing effects included, or choose from thousands of third-party effects
All editing and effects are completely non-destructive

REAPER 4.76 changelog:

Editing: show horizontal guide lines when moving envelope points/segments, and media items in free item positioning mode
Elastique 3: new version, also re-fixed the multichannel issue on win32
Frame rate grid: corrected 29.97DF grid/snap behavior
Media explorer: peaks drawing fixes/optimizations
Media items: fixed potential volume/pan/pitch adjustment issues vs item locking .
Multitouch: improved Windows 8.1 multitouch behavior
Project: allow user defined framerates
ReaPitch: fixed potential crash when loading presets
ReaSurround: don't rotate diffusion fields while rotating input sources
ReaVerb: better handling of impulse response file gain, deprecated old normalize options
Ripple edit all tracks: re-ripple things after locked items, if some items are selected there too
The full changelog is available here.