Graded Browser Support Update

By YUI TeamJanuary 29, 2009

This post announces an update to Graded Browser Support. The GBS page on the YUI site always has the most current information. This post includes a list of primary changes, the updated chart of browsers that receive A-grade support, and our GBS forecast.

Primary Changes

This GBS update adds A-grade support for IE8 on XP and Vista. A-grade support is discontinued for Firefox 3 on Win 2000 and Mac 10.4, keeping the A-grade testing surface at 15 platforms.

  • Initiated A-grade support for IE 8, Win XP
  • Initiated A-grade support for IE 8, Win Vista

  • Discontinued A-grade support for Firefox 3, Win 2000

  • Discontinued A-grade support for Firefox 3, Mac 10.4

  • Incremented supported version of Opera to 9.6

  • Incremented supported version of Safari to 3.2
Win 2000 Win XP Win Vista Mac 10.4.† Mac 10.5.†
Firefox 3.0.† A-grade A-grade A-grade
Firefox 2.0.† A-grade A-grade
IE 8.0 A-grade A-grade
IE 7.0 A-grade A-grade
IE 6.0 A-grade A-grade
Opera 9.6† A-grade A-grade
Safari 3.2† A-grade A-grade

The dagger symbol (as in "Firefox 3.†") indicates that the most-current non-beta version at that branch level receives support. Put another way, † means "the most recent" instead of "all."

GBS Forecast

In addition to the effective-immediately changes, we’re forecasting the discontinuation of A-grade support for Firefox 2 in the GBS update toward the end of June 2009.

The GBS Archive