Instead of macro template tags with triple curly braces, such as {{{items}}}, attributes passed to components are now accessed with an @ sign, such as {{@items}} or {@items}
<derby:view view="example"> syntax is now supported for including components with a variable name. This is equivalent to app:example, but the view attribute can vary based on context
Components can be passed an inherit attribute to default to the attributes from the parent
View#fn syntax has changed to support more arbitrary inputs and outputs. See the docs for more detail
Instead of view.dom, it is now app.view, app.dom, app.history, and app.model in the client
Add View#componentsByName
Bindings don't update during route execution for faster page renders
Initial support for bindings within inline SVG elements
Components have a 'destroy' event that gets invoked when they are no longer in the DOM
Components automatically cleanup listeners added via dom.addListener and model.on within a component
App#fn can be used to add controller methods to the app more easily across different files
App auto-reloading no longer uses Up, which didn't work well with polling. Reloading now uses cluster, though it is still somewhat buggy
App#enter and App#exit added, which get called upon entering or exiting a particular route pattern. Can be used intead of App#ready, which only gets called on the very first page load
Add Component#setup for more easy access to the library within a given components code. Useful for adding view functions pertaining to a particular component
App#Collection added for more convenient access to scoped models in controller functions and definition of collection specific methods. Demonstrated in the leaderboard code of the Sink example.
e.path(), e.get(), and e.at() now available for using template-style path names in controller code. Often more flexible and convenient than using model.at(el)
Many bug fixes