If you have a web application that uses the previous version of VintaSoft Web TWAIN service, and you want to use the new version of VintaSoft Web TWAIN service in your web application, you need to perform the following steps:

• Download new installer of VintaSoft Web TWAIN service from URL https://www.vintasoft.com/zip/VintasoftWebTwainService-15.4.0.zip and update installer of VintaSoft Web TWAIN service in your project.
• Get new Vintasoft JavaScript files and update Vintasoft JavaScript files in your project. Vintasoft JavaScript files can be get from 2 sources:
  • from installation of VintaSoft TWAIN .NET SDK (install new version of VintaSoft TWAIN .NET SDK and get files from folder "<SdkInstallPath>\VintaSoft\Twain .NET 15.4\Bin\JavaScript\")
  • from npm-package 'vintasoft-web-twain-js' (https://www.npmjs.com/package/vintasoft-web-twain-js)
• Rebuild your project.
• Distribute the new build of your application to your clients.