Found a bug in version 3.3.0 on the checked property of radio input type

[Joe Dean]

This snippet does not work in version 3.3.0. The radio button is always unchecked.

<input type="radio"  value="1" data-bind="checked: true" />

But does work in 2.2.0

[Joe Dean]

It does work for input type checkbox in 3.3.0 btw

[Michael Best]

In 3.0.0, the logic was changed to require strict equality for radio buttons. So you'd need to use checked: '1' for this to work.

See http://knockoutjs.com/upgrade-notes/v3.0.0.html

-- Michael