Staying Current with Yahoo Graded Browser Support
A few days ago Yahoo updated their Graded Browser Support graph of A-grade browsers. A-grade support is the highest support level. By taking full advantage of the powerful capabilities of modern web standards, the A-grade experience provides advanced functionality and visual fidelity. A-grade browsers are identified on a whitelist. Approximately 96% of our audience enjoys an A-grade experience.
The web team at Wayne State follow the same graded browser support that Yahoo does. We use Yahoo’s list as a baseline to test all web sites and applications we produce, making sure the greatest number of users have the best overall experience.
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.”
Source: http://yuiblog.com/blog/2009/01/28/gbs-update-20090128/
May 19th, 2009 at 7:33 am
A grade and X grade have more or less same usefulness.
The only practical difference between A and X-grade browsers is that QA actively tests against A-grade browsers.