Opera 45 is a web browser developed by Opera Software ASA, available for download in full install version for Windows platforms from legacy sources. This version of Opera was officially released on 2017-05-10 for public access and a brief summary of important updates and change log pertaining to this edition can be read below.

Opera 45 is built on Chromium 58 rendering engine and is a major milestone for Opera. This edition of Opera is code named Reborn, and has been derived from its concept browser Opera Neon.

Opera Reborn has integrated the instant messenger within the browser which let users to chat without the need to put of their work that too without any additional plugins.  Infact this way of working is being popular in mobiles. but much more capable PCs have been left out in the race. Neon is the answer to this.

Opera 45 has all new modern UI and the layout is consistent across many devices and platforms. Now users have more control over ad-blocking and this edition is built as more robust and performing browser.