This is a companion discussion topic for the original entry at https://www.rstudio.com/blog/platform-deprecation-strategy
In an effort to streamline product development, maintenance, and support to ensure the best experience for our users, we have created a strategy for operating system and browser deprecation. This will allow us to focus our work on modern platforms, and to encourage best practices in R development.
This policy applies to all of our products and packages, and has been posted to the website here. This strategy is included in our Support Agreement, the full text of which can be found here.