* Version 2.2.0 (released 2015-07-01)
 ** License change: Changed license to BSD 2-clause.
 ** Check both usage page and usage.
 ** Prefer hidraw backend over libusb, if available.

* Version 2.1.0 (released 2015-04-13)
 ** Use usage page based filtering if possible.
 ** Added support for newer YubiKey devices.
 ** Fix majorVersion in AppID facet verification.

* Version 2.0.1 (released 2014-10-28)
 ** Ignore failures while listing devices, as other transport might be working.
 ** Support for Security Key by Yubico

* Version 2.0.0 (released 2014-09-26)
 ** Updated to U2F_V2 standard.
 ** Removed old draft versions.

* Version 1.1.0 (released 2014-04-15)
 ** Added support for the HID transport.

* Version 1.0.0 (released 2014-02-18)
 ** First public release.
 ** Added support for U2F_V2.
 ** Added soft U2F device for testing purposes.

* Version 0.0.2 (released 2013-10-07)
 ** Better instructions in README
 ** Includes executables missing from 0.0.1

* Version 0.0.1 (released 2013-08-22)
 ** Initial internal release!
