Chrome 73 is a web browser developed by Google Inc, available for download in full install version for Windows platforms from legacy sources. This version of Chrome was officially released on 2019-03-12 for public access and a brief summary of important updates and change log pertaining to this edition can be read below.

Google Chrome 73.0.3683.86 was built on Blink 73 layout engine using JavaScript V8 engine version 7.3.492. This version is released for Windows, iOS and android versions and has number of fixes and improvements. Below are the Windows edition changes.

• Creating portable content is easier with signed HTTP exchanges
  
• Dynamically changing styles becomes way easier with constructable style sheets
• Support for Progressive Web Apps arrives on macOS, bringing support for PWAs to all desktop and mobile platforms
• matchAll() is a new regular expression matching method on the string prototype, and returns an array containing the complete matches
• The <link> element now supports imagesrcset and imagesizes properties to correspond to srcset and sizes attributes of HTMLImageElement
• Blink's shadow blur radius implementation now matches Firefox and Safari
• Dark mode is now supported on Mac, and Windows support is on the way 
• Removal of EXPLAIN and REINDEX support in WebSQL
• Removal of isomorphic decoding of URL fragment identifier
• Deprecation of 'drive-by downloads' in sandboxed iframes 
• Stoppage of support for external web extensions in CRX2 format, making CRX3 format required