Script.aculo.us 1.6.4, which marks the inclusion of the new release candidate of Prototype 1.5, is out now. This release comes with the brand-new Prototype V1.5.0_rc1 version, adds several new features and options to drag and drop, features a whole new (experimental) way of doing testing, and adds some other goodies here and there. Also, thanks to the contributors for identifying and squishing bugs!

So—what’s new & cool?

• Update Prototype to V1.5.0_rc1 (read more on Justin Palmer’s blog)
• Add experimental alternate syntax for unit tests (Behaviour Driven
  Development-style)
• Merge assertElementsMatch and assertElementMatches from Prototype’s
  [4986] unittest.js [Sam Stephenson]
• Add assertRespondsTo and shouldRespondTo assertions

      // object
      var testObj = {
        isNice: function() { }
      }

      // test
      assertRespondsTo('isNice', testObj);

Continue reading for more info...http://mir.aculo.us/articles/2006/09/06/script-aculo-us-1-6-4

ajaxian

Script.aculo.us 1.6.4 Released