How many versions of flash have been released prior to CS5.5 in recent years or since flash was first introduced?

Prior to Adobe Flash CS5.5, there were numerous versions of Flash released since its inception in 1996. Key versions include Flash 5, MX (2004), Flash 8 (2005), and Flash CS3 (2007) and CS4 (2008). Altogether, there were several major updates, including CS3, CS4, and CS5, along with earlier standalone versions, resulting in at least a dozen notable releases over the years.