Twitter Changes What Counts Toward 140-Character Limit
Twitter began to roll out features, first announced earlier this year, that exclude certain things from the 140 character count limit. Users will still be limited to 140-character messages, but, as first reported by The Verge last Friday, media attachments (including images, GIFs, videos, and polls) and quoted tweets will no longer count against the 140-character limit, making more room for text.
All @names, such as @MacRumors, will no longer count towards the 140-character count, nor will media attachments, retweets, or quoted tweets, but links will still eat up 23 characters.
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"All @names, such as @MacRumors, will no longer count towards the 140-character count, nor will media attachments, retweets, or quoted tweets, but links will still eat up 23 characters."
As I'd assume users already know, a month after these announcements, only the media attachment no-counts have been rolled out.