Apple has released Digital Camera RAW Update 6.06 for OS X Yosemite, which adds RAW file support for the following cameras:

• Canon PowerShot G3 X
• Leica Q (Typ 116)
• Panasonic LUMIX DMC-GX8
• Sony Alpha A7R II
• Sony Cyber-shot DSC-RX10 II
• Sony Cyber-shot DSC-RX100 IV

You can download the update via the Mac App Store updates pane.