Latest Opera 31 user agents:

User Agent Platform Device
Opera/31.80 (X11; Linux x64; Ubuntu/15.04) Presto/2.12.388 Version/12.16 Ubuntu 15 Unknown
Opera/31.6 (X11; Linux i686; Ubuntu/14.10) Presto/2.12.388 Version/31.6 Ubuntu 14 Unknown
Opera/31.10 (X11; Linux i686; Ubuntu/14.10) Presto/2.12.388 Version/12.16 Ubuntu 14 Unknown
Mozilla/5.0 (X11;Linux x86_64;Ubuntu/15.10) OPR/31.0.1889.174 Ubuntu 15 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.30 Safari/537.36 OPR/31.0.1889.16 (Edition beta) Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36 OPR/31.0.1889.230 Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36 OPR/31.0.1889.211 Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.207 Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.180 Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.174 (Edition Yx) Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.174 (Edition Yx 01) Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.174 (Edition RMV) Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.174 (Edition Goru) Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.174 (Edition FCR) Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.174 (Edition Campaign 50) Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.174 (Edition Campaign 49) Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.174 (Edition Campaign 38) Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.174 (Edition Campaign 34) Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.174 (Edition Campaign 30) Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.130 Safari/537.36 OPR/31.0.1889.163 Windows 8 Unknown