"Deprecating IE6 and IE7 support in Twitter for Websites"

Egyre több helyen szanálják a régi IE verziójat:

When the Tweet button was introduced in 2010, Microsoft’s Internet Explorer 6 was our baseline. Now, most users have upgraded and we see IE6 usage dwindled. On May 13th 2013, we’re going to prune our support for that browser and its successor, IE7.

https://dev.twitter.com/blog/tfw-ie6-ie7-support