Data source: Wikipedia , and various news sites around the web.

Made by Will Hains [blog] [twitter]. Please link back to this site if you use it in yours.

Notes:

(NEW!) GM releases are now treated as special, and shown in dark grey. Once the GM is released and final release date is known, the chart shows the total days up to final release, even if it is in the future.

The "Days in Final" will show negative when the future release date is known.

The canonical source of data is this table on Wikipedia. (Looks like the Wikipedia table has been removed.)

If you notice a discrepancy in the data, please let me know.

More info about this chart and how it was made can be found here.