• WAVE demuxer now throws immediately for formats it doesn't support (#440)
• Added read/write support for 64-bit float sample format for WAVE
• Fixed incorrect duration computation for multi-frame Opus packets (#439)
• Fixed nested workers randomly shutting off in Firefox (#435)
• Fixed writing WebVTT in MP4 creating an assertion error (#441)
• Fixed missing BlockDuration when writing WebVTT into Matroska (#442)
• Make sure video/audio samples are always closed in the Conversion API, even during error cases