Revision code

Changes Version 0.61.0
Released on September 20, 2019 with 9 commits


This release makes it easier to migrate to a recent version of Unpoly when your app still depends on jQuery. Unpoly dropped its jQuery dependency with version 0.60.0, but retains optional jQuery support through functions like up.$compiler() and up.$on(). All Unpoly functions that take a native element as an argument may also be called with a jQuery collection as an argument.

The following changes to the optional jQuery support were implemented:

  • In an ES6 build pipeline, Unpoly's jQuery support no longer requires window.jQuery to be defined before Unpoly is imported into the build. You still need to define window.jQuery, but you may do so at any time in your scripts, regardless of load order.
  • jQuery support functions like up.$compiler() now fail with a helpful message if the developer forgets to define window.jQuery.

This release also exposes some convenience functions and selectors:

  • New experimental function up.event.halt(). It prevents the event from bubbling up the DOM. It also prevents other event handlers bound on the same element. It also prevents the event's default action.
  • New experimental function up.form.fields(). It returns a list of form fields within the given element.
  • The selector form[up-validate] is now supported. It performs server-side validation when any fieldset within this form changes. Previously only the variant input[up-validate] was supported.


If you're upgrading from an older Unpoly version you should load unpoly-migrate.js to polyfill deprecated APIs. Changes handled by unpoly-migrate.js are not considered breaking changes.

See our upgrading guide for details.