While trying to find the namespace for an Office 2013 Ribbon I checked the ECMA pages today and discovered that the 4th edition of the ECMA-376 standard has been released this month.

It can be downloaded in four parts at

Not yet updated are the special Office Implementation Extension┬ástandards for things like the Ribbon and Toolbars. Let’s hope, now that the ECMA-Standard is public, that these will soon follow!

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