What is the best long-term solution for ensuring compatibility with current web browsers?

Upgrading web applications is the most effective long-term solution for ensuring compatibility with current web browsers. As web standards evolve, browsers frequently update to improve performance, security, and user experience. By regularly upgrading web applications, you can take advantage of new features and capabilities offered by browsers, ensuring that your applications remain functional and visually appealing across different environments.

This approach also allows developers to address any compatibility issues that may arise from changes in browser technology. Being proactive in upgrading applications helps maintain alignment with industry standards and best practices, which in turn enhances the user experience and can improve performance.

While keeping browser versions static may appear to provide a controlled environment, it can result in missed updates that include critical security patches and optimizations. Using only basic HTML limits the functionality and interactivity of web applications, which may not meet users' expectations for modern web experiences. Installing multiple browsers can provide a temporary solution for testing compatibility, but it is neither efficient nor scalable for long-term development needs. Upgrading web applications keeps the coding standards up-to-date, ultimately providing a reliable path toward compatibility with current and future web browsers.