Camera RAW 8.5 adds E-M10 and GH4 support.
Adobe now fully supports the E-M10 and GH4 cameras. Download links below:
Camera Raw 8.5 and DNG Converter 8.5
Mac – http://www.adobe.com/support/downloads/detail.jsp?ftpID=5793
Windows – http://www.adobe.com/support/downloads/detail.jsp?ftpID=5794
Lightroom 5.5:
Mac – http://www.adobe.com/support/downloads/detail.jsp?ftpID=5791
Win – http://www.adobe.com/support/downloads/detail.jsp?ftpID=5792