Opera is a web browser released by Opera Software in 1995-04-10. The latest version is 65.0.3467.78. It is currently since 2013 based on Chromium engine web. The 37 or newer version requires Windows 7 or newer, 36 was last version released to Windows XP and Windows Vista. Version 15 and above is based on Blink engine. In versions 7 - 12 was based on Presto engine, that was released on 2003-01.
Opera GX is a version of Opera optimized for gaming. It was announced on 2019-06-11. It is currently in beta.