OS X 10.10 Yosemite was released on October 16, 2014.
Elgato applications function well with OS X 10.10.
Elgato Game Capture HD
Versions 1.4.2 and 2.0 of Elgato Game Capture HD are available for use with OS X 10.10 Yosemite.
You can get the latest version of Elgato Game Capture HD from here:
https://www.elgato.com/en/game-capture-hd-support
The current status is normal behavior - they are fully supported.
Elgato Video Capture
Version 1.1.5 of Elgato Video Capture has been tested with OS X 10.10 Yosemite.
You can get the latest version of Elgato Video Capture from here:
https://www.elgato.com/video/video-capture/support/update-mac
The current status is normal behavior - it is fully supported.
EyeTV
Version 3.6.7 of EyeTV is available for use with OS X 10.10 Yosemite.
You can get the latest version of EyeTV from here:
http://www.elgato.com/eyetv/eyetv-3/support/update
The current status is normal behavior - it is fully supported.
Turbo.264 HD
Version 1.2.3 of Turbo.264 HD has been tested with OS X 10.10 Yosemite.
You can get the latest version of Turbo.264 HD from here:
https://www.elgato.com/en/video/turbo-264-hd/support/update
The current status is normal behavior - it is fully supported.
Elgato applications function well with OS X 10.10.
Elgato Game Capture HD
Versions 1.4.2 and 2.0 of Elgato Game Capture HD are available for use with OS X 10.10 Yosemite.
You can get the latest version of Elgato Game Capture HD from here:
https://www.elgato.com/en/game-capture-hd-support
The current status is normal behavior - they are fully supported.
Elgato Video Capture
Version 1.1.5 of Elgato Video Capture has been tested with OS X 10.10 Yosemite.
You can get the latest version of Elgato Video Capture from here:
https://www.elgato.com/video/video-capture/support/update-mac
The current status is normal behavior - it is fully supported.
EyeTV
Version 3.6.7 of EyeTV is available for use with OS X 10.10 Yosemite.
You can get the latest version of EyeTV from here:
http://www.elgato.com/eyetv/eyetv-3/support/update
The current status is normal behavior - it is fully supported.
Turbo.264 HD
Version 1.2.3 of Turbo.264 HD has been tested with OS X 10.10 Yosemite.
You can get the latest version of Turbo.264 HD from here:
https://www.elgato.com/en/video/turbo-264-hd/support/update
The current status is normal behavior - it is fully supported.