Latest Opera 4 user agents:

User Agent Platform Device
Opera/9.80 (Linux sh4; U; ; en; CreNova Build) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1 HbbTV/1.1.1 (;CreNova;CNV001;1.0;1.0; FXM-U2FsdGVkX1/VHpIx4++T5dr9nrGwg2lrTv3h0bv5wA819tf9ZWJf5kbW8psLCFgl-END; en) Presto/2.9.167 Ve GNU/Linux CNV001
Opera/9.80 (Linux sh4; U; ; en; CreNova Build) AppleWebKit/533.1 (KHTML like Gecko) Version/4.0 Mobile Safari/533.1 HbbTV/1.1 (;CreNova;CNV001;1.0;1.0; FXM-U2FsdGVkX19AfSGBrU5pNwqodai+lZp2xktKFNHDE46SbYGa7Wp+eG5Z56WMDCQu-END; en) Presto/2.9 Version GNU/Linux CNV001
Opera/9.80 (Linux sh4; U; ; en; CreNova Build) AppleWebKit/533.1 (KHTML like Gecko) Version/4.0 Mobile Safari/533.1 HbbTV/1.1 (;CreNova;CNV001;1.0;1.0; FXM-U2FsdGVkX19AfSGBrU5pNwqodai lZp2xktKFNHDE46SbYGa7Wp eG5Z56WMDCQu-END; en) Presto/2.9 Version GNU/Linux CNV001
Opera/4.64 (Windows NT 6.2) Presto/10.5.686 Version/20.15 Windows 8 Unknown
Opera/4.43 (WinNT3.51) Presto/5.14.707 Version/5.19 Windows NT Unknown
Opera/4.35 (WinNT4.0) Presto/8.16.376 Version/4.11 Windows NT Unknown
Opera/4.10 (X11; Fedora;Linux x86; rv:86.5) Presto/9.2.210 Version/0.14 Fedora Unknown
Opera/4.02 (Windows 98; U) [en] Windows 98 Unknown