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/11.12 (X11; Linux x86_64; U; OC Presto/2.9.180 Version/12.00)
• Opera/11.18 (Windows NT 5.0; U; LT Presto/2.9.187 Version/12.00)
• Opera/11.17 (Windows NT 5.1; U; NL Presto/2.9.172 Version/10.00)
• Opera/11.14 (Windows NT 5.3; U; GL Presto/2.9.188 Version/11.00)
• Opera/11.19 (Windows NT 5.3; U; SO Presto/2.9.185 Version/10.00)
• Opera/11.16 (Windows NT 6.0; U; CA Presto/2.9.172 Version/11.00)
• Opera/11.12 (Windows NT 6.0; U; MY Presto/2.9.173 Version/10.00)
• Opera/11.12 (Windows NT 5.3; U; SR Presto/2.9.170 Version/12.00)
• Opera/11.18 (Windows NT 6.2; U; TR Presto/2.9.183 Version/11.00)
• Opera/11.13 (Windows NT 6.2; U; JA Presto/2.9.177 Version/10.00)
• Opera/11.18 (Windows NT 5.0; U; KG Presto/2.9.160 Version/12.00)
• Opera/11.13 (X11; Linux i686; U; SQ Presto/2.9.187 Version/12.00)
• Opera/11.17 (Windows NT 5.0; U; MO Presto/2.9.161 Version/10.00)
• Opera/11.18 (Windows NT 6.1; U; CU Presto/2.9.163 Version/10.00)
• Opera/11.17 (Windows NT 6.0; U; MS Presto/2.9.178 Version/10.00)
• Opera/11.17 (Windows NT 5.1; U; ID Presto/2.9.182 Version/10.00)
• Opera/11.19 (Windows NT 6.0; U; BR Presto/2.9.169 Version/12.00)
• Opera/11.17 (Windows NT 6.0; U; MK Presto/2.9.175 Version/10.00)
• Opera/11.13 (Windows NT 6.0; U; CU Presto/2.9.186 Version/10.00)
• Opera/11.16 (Windows NT 6.3; U; KU Presto/2.9.163 Version/11.00)
• Opera/11.15 (Windows NT 6.0; U; BG Presto/2.9.163 Version/10.00)
• Opera/11.16 (Windows NT 6.2; U; KU Presto/2.9.183 Version/11.00)
• Opera/11.17 (Windows NT 6.1; U; NB Presto/2.9.177 Version/12.00)
• Opera/11.16 (Windows NT 5.2; U; MT Presto/2.9.188 Version/11.00)
• Opera/11.19 (Windows NT 5.1; U; OC Presto/2.9.162 Version/10.00)
• Opera/11.1 (Windows NT 5.0; U; SW Presto/2.9.176 Version/10.00)
• Opera/11.1 (Windows NT 5.1; U; GD Presto/2.9.178 Version/12.00)
• Opera/11.1 (Windows NT 6.0; U; BR Presto/2.9.164 Version/12.00)
• Opera/11.18 (Windows NT 6.0; U; FY Presto/2.9.170 Version/10.00)
• Opera/11.19 (Windows NT 5.2; U; NB Presto/2.9.170 Version/11.00)
• Opera/11.17 (Windows NT 5.0; U; ZH Presto/2.9.161 Version/12.00)
• Opera/11.13 (Windows NT 5.3; U; HE Presto/2.9.184 Version/11.00)
• Opera/11.13 (Windows NT 6.3; U; EO Presto/2.9.163 Version/11.00)
• Opera/11.1 (Windows NT 5.1; U; HT Presto/2.9.162 Version/11.00)
• Opera/11.17 (Windows NT 6.3; U; KY Presto/2.9.178 Version/10.00)
• Opera/11.12 (Windows NT 5.3; U; TY Presto/2.9.182 Version/11.00)
• Opera/11.14 (Windows NT 6.1; U; CA Presto/2.9.174 Version/10.00)
• Opera/11.14 (Windows NT 6.1; U; EU Presto/2.9.190 Version/12.00)
• Opera/11.14 (Windows NT 5.1; U; GL Presto/2.9.161 Version/10.00)
• Opera/11.17 (Windows NT 6.2; U; KO Presto/2.9.188 Version/10.00)
• Opera/11.14 (Windows NT 5.0; U; AS Presto/2.9.181 Version/12.00)
• Opera/11.14 (Windows NT 6.0; U; TY Presto/2.9.180 Version/12.00)
• Opera/11.18 (Windows NT 5.2; U; MO Presto/2.9.181 Version/12.00)
• Opera/11.17 (Windows NT 6.1; U; EN Presto/2.9.165 Version/11.00)
• Opera/11.13 (Windows NT 6.1; U; MY Presto/2.9.162 Version/10.00)
• Opera/11.14 (Windows NT 6.3; U; ZH Presto/2.9.185 Version/11.00)
• Opera/11.17 (Windows NT 5.0; U; SL Presto/2.9.185 Version/10.00)
• Opera/11.18 (Windows NT 5.1; U; GV Presto/2.9.170 Version/12.00)
• Opera/11.1 (X11; Linux i686; U; SQ Presto/2.9.183 Version/10.00)
• Opera/11.1 (Windows NT 5.2; U; SW Presto/2.9.187 Version/10.00)
• Opera/11.1 (Windows NT 6.1; U; NB Presto/2.9.174 Version/10.00)
• Opera/11.16 (Windows NT 5.1; U; KU Presto/2.9.178 Version/10.00)
• Opera/11.1 (Windows NT 5.3; U; SE Presto/2.9.171 Version/10.00)
• Opera/11.14 (Windows NT 6.1; U; LV Presto/2.9.165 Version/10.00)
• Opera/11.15 (Windows NT 6.0; U; ES Presto/2.9.181 Version/12.00)
• Opera/11.19 (Windows NT 6.1; U; UK Presto/2.9.185 Version/12.00)
• Opera/11.16 (Windows NT 5.0; U; HR Presto/2.9.180 Version/11.00)
• Opera/11.14 (Windows NT 5.2; U; FJ Presto/2.9.190 Version/10.00)
• Opera/11.16 (X11; Linux i686; U; MG Presto/2.9.188 Version/12.00)
• Opera/11.15 (Windows NT 6.2; U; CY Presto/2.9.168 Version/11.00)
• Opera/11.14 (Windows NT 6.3; U; KO Presto/2.9.178 Version/12.00)
• Opera/11.19 (Windows NT 5.0; U; BR Presto/2.9.179 Version/11.00)
• Opera/11.1 (Macintosh; Intel Mac OS X 10.5.5 U; GV Presto/2.9.160 Version/11.00)
• Opera/11.1 (Windows NT 6.1; U; DE Presto/2.9.166 Version/12.00)
• Opera/11.19 (Windows NT 5.3; U; PL Presto/2.9.162 Version/12.00)
• Opera/11.18 (Windows NT 5.3; U; BS Presto/2.9.178 Version/11.00)
• Opera/11.12 (Windows NT 5.1; U; YI Presto/2.9.180 Version/12.00)
• Opera/11.13 (Windows NT 5.3; U; UZ Presto/2.9.175 Version/10.00)
• Opera/11.15 (Windows NT 5.0; U; MS Presto/2.9.168 Version/10.00)
• Opera/11.19 (Windows NT 5.0; U; SO Presto/2.9.165 Version/10.00)
• Opera/11.14 (Windows NT 5.3; U; RO Presto/2.9.186 Version/11.00)
• Opera/11.19 (Windows NT 5.3; U; SL Presto/2.9.183 Version/10.00)
• Opera/11.19 (Windows NT 6.3; U; DA Presto/2.9.171 Version/11.00)
• Opera/11.13 (Windows NT 6.0; U; SO Presto/2.9.182 Version/12.00)
• Opera/11.18 (Windows NT 6.2; U; AF Presto/2.9.160 Version/12.00)
• Opera/11.14 (Windows NT 6.3; U; IS Presto/2.9.179 Version/10.00)
• Opera/11.14 (Windows NT 6.2; U; BR Presto/2.9.167 Version/11.00)
• Opera/11.17 (Windows NT 5.3; U; EO Presto/2.9.177 Version/11.00)
• Opera/11.13 (Windows NT 6.2; U; LV Presto/2.9.160 Version/12.00)
• Opera/11.12 (Windows NT 5.1; U; MO Presto/2.9.184 Version/12.00)
• Opera/11.15 (Windows NT 6.2; U; RU Presto/2.9.170 Version/11.00)
• Opera/11.18 (Windows NT 6.2; U; AR Presto/2.9.165 Version/11.00)
• Opera/11.13 (Windows NT 6.1; U; ET Presto/2.9.188 Version/11.00)
• Opera/11.1 (Windows NT 5.0; U; MG Presto/2.9.174 Version/10.00)
• Opera/11.12 (Windows NT 6.2; U; ET Presto/2.9.183 Version/10.00)
• Opera/11.19 (Windows NT 6.3; U; CU Presto/2.9.174 Version/12.00)
• Opera/11.16 (Windows NT 5.0; U; AS Presto/2.9.189 Version/11.00)
• Opera/11.12 (Windows NT 6.3; U; CS Presto/2.9.166 Version/10.00)
• Opera/11.15 (Windows NT 6.2; U; LV Presto/2.9.160 Version/11.00)
• Opera/11.17 (Windows NT 6.1; U; NN Presto/2.9.177 Version/10.00)
• Opera/11.12 (Windows NT 6.3; U; SO Presto/2.9.182 Version/12.00)
• Opera/11.18 (X11; Linux x86_64; U; KA Presto/2.9.179 Version/10.00)
• Opera/11.1 (Windows NT 6.3; U; FR Presto/2.9.176 Version/11.00)
• Opera/11.16 (Windows NT 6.1; U; CO Presto/2.9.162 Version/10.00)
• Opera/11.12 (Windows NT 6.0; U; BR Presto/2.9.190 Version/10.00)
• Opera/11.17 (Windows NT 6.1; U; AS Presto/2.9.184 Version/10.00)
• Opera/11.12 (Windows NT 5.3; U; MT Presto/2.9.166 Version/11.00)
• Opera/11.17 (Windows NT 6.1; U; CO Presto/2.9.176 Version/11.00)
• Opera/11.19 (Windows NT 6.3; U; CO Presto/2.9.178 Version/12.00)
• Opera/11.16 (X11; Linux x86_64; U; MG Presto/2.9.185 Version/11.00)