Bing Date Filter

I keep checking the search engines for the Windows Phone 8 release date for AT&T, and when I’m looking for date specific information rather than last years Windows Phone release dates, I often use Google because it allows you to filter results down to recent dates.  This has been a key feature that kept me from using Bing by default.

Tonight I was using Bing and got a bunch of results from last year. I was getting ready to type to search recent info, I noticed a subtle little drop down menu at the top of my search results that said “Any Time.” I clicked the drop down arrow and, Bing, there is a date filter to help find recent info.  Has this been on the results page for a long time or is this a recent addition?