As with the version 1.xx series, there were a number of versions in the 2.xx and 3.xx series, released between 8 November 2007 and 20 September 2011. There were quite a few noticeable changes, and in version 2.10 alone there were new features such as the additions of the Voice Changer feature with the power to make users sound like a person using a voice changer with five presets over hi and low tones, a new music bitmapping process specifically designed for the PS3 to provide enhanced audio playback, as well as supports for DivX and WMV playback and Blu-ray disc profile 1.1 for picture-in-picture. Version 2.50 released on 15 October 2008 was the update in the 2.xx series that contained the largest number of new features or changes, among them were the support for official PS3 Bluetooth headset, in-game screenshots and Adobe Flash 9. A recovery menu (or safe mode) was also introduced in this version. Later versions in the 2.xx series such as the 2.7x, 2.85 or 2.90 were distributed with the PS3 "slim". Similar to versions such as 2.00, versions such as 3.00, 3.10, 3.30, 3.40 and 3.70 all introduced relatively large number of new features or changes, such as supports for new Dynamic Custom Themes, improvements in the Internet Browser, Trophy enhancements, and a new Editor & Uploader application.