For more information, please visit the following pages:

• Opera
• Opera Software ASA
• Presto

Latest user agents (if you are looking for complete list, download it here):

• Opera/10.23 (Windows NT 6.0; U; MY Presto/2.9.163 Version/11.00)
• Opera/10.23 (Windows NT 5.3; U; GL Presto/2.9.184 Version/10.00)
• Opera/10.26 (Windows NT 5.1; U; SE Presto/2.9.184 Version/10.00)
• Opera/10.24 (Windows NT 5.0; U; SQ Presto/2.9.166 Version/11.00)
• Opera/10.2 (X11; Linux i686; U; RM Presto/2.9.169 Version/12.00)
• Opera/10.2 (Windows NT 6.1; U; FI Presto/2.9.175 Version/12.00)
• Opera/10.25 (Windows NT 6.2; U; DE Presto/2.9.171 Version/11.00)
• Opera/10.25 (Windows NT 6.2; U; BE Presto/2.9.190 Version/11.00)
• Opera/10.24 (Windows NT 6.0; U; JV Presto/2.9.166 Version/11.00)
• Opera/10.28 (X11; Linux x86_64; U; ID Presto/2.9.164 Version/10.00)
• Opera/10.2 (Windows NT 6.0; U; AN Presto/2.9.170 Version/12.00)
• Opera/10.21 (Windows NT 6.2; U; HU Presto/2.9.175 Version/10.00)
• Opera/10.25 (Windows NT 5.1; U; NN Presto/2.9.171 Version/11.00)
• Opera/10.22 (Windows NT 5.2; U; NE Presto/2.9.187 Version/12.00)
• Opera/10.24 (Windows NT 5.3; U; HU Presto/2.9.183 Version/11.00)
• Opera/10.2 (Windows NT 5.1; U; BO Presto/2.9.186 Version/10.00)
• Opera/10.27 (X11; Linux i686; U; PL Presto/2.9.168 Version/12.00)
• Opera/10.21 (Windows NT 6.0; U; BS Presto/2.9.163 Version/11.00)
• Opera/10.25 (X11; Linux i686; U; CY Presto/2.9.180 Version/12.00)
• Opera/10.22 (Windows NT 6.3; U; YI Presto/2.9.188 Version/11.00)
• Opera/10.2 (Windows NT 6.2; U; JV Presto/2.9.176 Version/10.00)
• Opera/10.23 (Windows NT 6.2; U; HY Presto/2.9.163 Version/10.00)
• Opera/10.24 (Macintosh; Intel Mac OS X 10.7.3 U; LT Presto/2.9.167 Version/11.00)
• Opera/10.29 (Windows NT 6.0; U; NO Presto/2.9.163 Version/10.00)
• Opera/10.25 (Windows NT 6.3; U; JV Presto/2.9.185 Version/10.00)
• Opera/10.23 (Windows NT 5.0; U; GL Presto/2.9.163 Version/11.00)
• Opera/10.28 (X11; Linux i686; U; SO Presto/2.9.190 Version/10.00)
• Opera/10.22 (Windows NT 5.1; U; AZ Presto/2.9.185 Version/11.00)
• Opera/10.25 (Windows NT 6.0; U; SR Presto/2.9.176 Version/12.00)
• Opera/10.25 (Windows NT 6.0; U; SW Presto/2.9.178 Version/11.00)
• Opera/10.27 (Windows NT 5.2; U; GV Presto/2.9.187 Version/10.00)
• Opera/10.21 (Windows NT 5.2; U; GL Presto/2.9.186 Version/11.00)
• Opera/10.2 (Windows NT 6.0; U; AS Presto/2.9.171 Version/10.00)
• Opera/10.22 (Windows NT 6.1; U; UZ Presto/2.9.163 Version/11.00)
• Opera/10.21 (Windows NT 6.3; U; TR Presto/2.9.181 Version/12.00)
• Opera/10.26 (Windows NT 5.3; U; AB Presto/2.9.164 Version/12.00)
• Opera/10.24 (Windows NT 6.0; U; SR Presto/2.9.190 Version/10.00)
• Opera/10.28 (Windows NT 5.3; U; SE Presto/2.9.171 Version/12.00)
• Opera/10.22 (Windows NT 5.2; U; MY Presto/2.9.185 Version/11.00)
• Opera/10.24 (Windows NT 6.0; U; FO Presto/2.9.170 Version/10.00)
• Opera/10.29 (X11; Linux i686; U; UR Presto/2.9.163 Version/12.00)
• Opera/10.29 (Windows NT 5.1; U; JV Presto/2.9.166 Version/11.00)
• Opera/10.2 (Windows NT 6.0; U; HY Presto/2.9.180 Version/12.00)
• Opera/10.25 (Windows NT 6.3; U; MK Presto/2.9.169 Version/12.00)
• Opera/10.23 (Windows NT 5.2; U; ZH Presto/2.9.164 Version/11.00)
• Opera/10.23 (Windows NT 5.1; U; AR Presto/2.9.171 Version/10.00)
• Opera/10.23 (Windows NT 6.0; U; BS Presto/2.9.182 Version/10.00)
• Opera/10.27 (Windows NT 6.0; U; NO Presto/2.9.171 Version/10.00)
• Opera/10.26 (Windows NT 6.1; U; YI Presto/2.9.184 Version/10.00)
• Opera/10.27 (Macintosh; Intel Mac OS X 10.9.1 U; AR Presto/2.9.175 Version/11.00)
• Opera/10.26 (Windows NT 5.0; U; BR Presto/2.9.180 Version/10.00)
• Opera/10.24 (Windows NT 6.1; U; KY Presto/2.9.169 Version/11.00)
• Opera/10.22 (Windows NT 6.2; U; HR Presto/2.9.162 Version/11.00)
• Opera/10.24 (Windows NT 6.3; U; AB Presto/2.9.187 Version/11.00)
• Opera/10.25 (Windows NT 5.0; U; GV Presto/2.9.180 Version/12.00)
• Opera/10.29 (Windows NT 5.3; U; GL Presto/2.9.165 Version/11.00)
• Opera/10.27 (Windows NT 5.0; U; MN Presto/2.9.180 Version/12.00)
• Opera/10.23 (Windows NT 5.3; U; AF Presto/2.9.188 Version/11.00)
• Opera/10.29 (Windows NT 6.0; U; SW Presto/2.9.183 Version/12.00)
• Opera/10.23 (Windows NT 6.0; U; EN Presto/2.9.186 Version/12.00)
• Opera/10.21 (Windows NT 5.1; U; GL Presto/2.9.188 Version/10.00)
• Opera/10.26 (Windows NT 6.2; U; CU Presto/2.9.165 Version/12.00)
• Opera/10.26 (Windows NT 6.3; U; BR Presto/2.9.189 Version/10.00)
• Opera/10.29 (Windows NT 6.3; U; FI Presto/2.9.171 Version/10.00)
• Opera/10.23 (Windows NT 5.3; U; EO Presto/2.9.165 Version/10.00)
• Opera/10.24 (X11; Linux x86_64; U; FY Presto/2.9.167 Version/11.00)
• Opera/10.22 (Windows NT 6.2; U; NO Presto/2.9.164 Version/10.00)
• Opera/10.23 (Windows NT 5.1; U; PT Presto/2.9.168 Version/11.00)
• Opera/10.23 (Windows NT 5.3; U; AB Presto/2.9.164 Version/10.00)
• Opera/10.25 (X11; Linux x86_64; U; LT Presto/2.9.187 Version/10.00)
• Opera/10.23 (Windows NT 5.1; U; FJ Presto/2.9.179 Version/10.00)
• Opera/10.22 (Windows NT 6.3; U; UZ Presto/2.9.181 Version/10.00)
• Opera/10.29 (X11; Linux x86_64; U; CU Presto/2.9.186 Version/12.00)
• Opera/10.2 (Windows NT 5.2; U; BR Presto/2.9.183 Version/12.00)
• Opera/10.2 (Windows NT 6.1; U; LA Presto/2.9.183 Version/11.00)
• Opera/10.21 (Windows NT 5.1; U; IT Presto/2.9.178 Version/10.00)
• Opera/10.21 (Windows NT 5.1; U; OC Presto/2.9.173 Version/12.00)
• Opera/10.2 (Windows NT 5.0; U; CY Presto/2.9.174 Version/12.00)
• Opera/10.29 (Windows NT 6.1; U; DE Presto/2.9.168 Version/12.00)
• Opera/10.26 (Windows NT 6.3; U; RU Presto/2.9.179 Version/10.00)
• Opera/10.29 (Windows NT 5.1; U; TK Presto/2.9.160 Version/10.00)
• Opera/10.25 (Windows NT 6.0; U; GL Presto/2.9.186 Version/12.00)
• Opera/10.2 (Windows NT 6.0; U; AF Presto/2.9.176 Version/10.00)
• Opera/10.29 (Windows NT 6.3; U; GA Presto/2.9.172 Version/12.00)
• Opera/10.29 (Windows NT 6.1; U; BR Presto/2.9.181 Version/11.00)
• Opera/10.23 (Windows NT 6.3; U; BE Presto/2.9.190 Version/11.00)
• Opera/10.26 (Windows NT 5.1; U; EL Presto/2.9.167 Version/11.00)
• Opera/10.23 (Windows NT 6.2; U; VI Presto/2.9.163 Version/10.00)
• Opera/10.23 (Windows NT 6.0; U; IT Presto/2.9.180 Version/10.00)
• Opera/10.28 (Windows NT 5.1; U; SQ Presto/2.9.181 Version/10.00)
• Opera/10.21 (Windows NT 5.2; U; ID Presto/2.9.184 Version/10.00)
• Opera/10.25 (Windows NT 6.2; U; FI Presto/2.9.188 Version/11.00)
• Opera/10.22 (Macintosh; Intel Mac OS X 10.9.8 U; LI Presto/2.9.170 Version/10.00)
• Opera/10.28 (Windows NT 5.2; U; OC Presto/2.9.165 Version/10.00)
• Opera/10.22 (Windows NT 5.3; U; SO Presto/2.9.175 Version/10.00)
• Opera/10.27 (Windows NT 5.3; U; SE Presto/2.9.188 Version/10.00)
• Opera/10.28 (Windows NT 5.3; U; SK Presto/2.9.173 Version/11.00)
• Opera/10.21 (Macintosh; Intel Mac OS X 10.6.7 U; LN Presto/2.9.180 Version/11.00)
• Opera/10.22 (Windows NT 6.0; U; MG Presto/2.9.163 Version/12.00)
• Opera/10.24 (Windows NT 6.0; U; SO Presto/2.9.167 Version/10.00)