Latest Chrome 21 user agents:

User Agent Platform Device
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_8_7) AppleWebKit/533.2 (KHTML, like Gecko) Chrome/21.0.823.0 Safari/533.2 Mac 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_7) AppleWebKit/531.0 (KHTML, like Gecko) Chrome/21.0.830.0 Safari/531.0 Mac 10 Unknown
Mozilla/5.0 (X11; Linux i686) AppleWebKit/536.0 (KHTML, like Gecko) Chrome/21.0.847.0 Safari/536.0 GNU/Linux Unknown
Mozilla/5.0 (Windows 98; Win 9x 4.90) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/21.0.871.0 Safari/535.2 Windows ME Unknown
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/533.0 (KHTML, like Gecko) Chrome/21.0.820.0 Safari/533.0 GNU/Linux Unknown
Mozilla/5.0 (Macintosh; PPC Mac OS X 10_7_8) AppleWebKit/532.0 (KHTML, like Gecko) Chrome/21.0.855.0 Safari/532.0 Mac 10 Unknown
Mozilla/5.0 (Linux; Android 2.3.1) AppleWebKit/532.2 (KHTML, like Gecko) Chrome/21.0.849.0 Safari/532.2 Android 2 Unknown
Mozilla/5.0 (Windows CE) AppleWebKit/532.2 (KHTML, like Gecko) Chrome/21.0.819.0 Safari/532.2 Windows CE Unknown
Mozilla/5.0 (Windows NT 11.0) AppleWebKit/534.1 (KHTML, like Gecko) Chrome/21.0.891.0 Safari/534.1 Windows NT Unknown
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_11_2) AppleWebKit/536.0 (KHTML, like Gecko) Chrome/21.0.848.0 Safari/536.0 Mac 10 Unknown
Mozilla/5.0 (Linux; Android 3.1) AppleWebKit/532.0 (KHTML, like Gecko) Chrome/21.0.871.0 Safari/532.0 Android 3 Unknown
Mozilla/5.0 (Windows NT 6.0) AppleWebKit/532.1 (KHTML, like Gecko) Chrome/21.0.820.0 Safari/532.1 Windows Vista Unknown
Mozilla/5.0 (Windows 98; Win 9x 4.90) AppleWebKit/533.2 (KHTML, like Gecko) Chrome/21.0.837.0 Safari/533.2 Windows ME Unknown
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/532.2 (KHTML, like Gecko) Chrome/21.0.859.0 Safari/532.2 Windows 7 Unknown
Mozilla/5.0 (Windows NT 5.0) AppleWebKit/532.1 (KHTML, like Gecko) Chrome/21.0.831.0 Safari/532.1 Windows 2000 Unknown
Mozilla/5.0 (X11; Linux i686) AppleWebKit/535.1 (KHTML, like Gecko) Chrome/21.0.806.0 Safari/535.1 GNU/Linux Unknown
Mozilla/5.0 (Windows NT 10.0) AppleWebKit/532.1 (KHTML, like Gecko) Chrome/21.0.837.0 Safari/532.1 Windows 10 Unknown
Mozilla/5.0 (Windows NT 6.2) AppleWebKit/534.1 (KHTML, like Gecko) Chrome/21.0.873.0 Safari/534.1 Windows 8 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/21.0.860.0 Safari/535.2 Mac 10 Unknown
Mozilla/5.0 (Windows CE) AppleWebKit/535.1 (KHTML, like Gecko) Chrome/21.0.812.0 Safari/535.1 Windows CE Unknown