We cannot overemphasize the importance of open source software development in our industry. According to our research on the state of developer ecosystem, 60% of all developers are involved in some way in OSS, ranging from full-time work on open source code to occasional contributions to open source projects. For a long time, JetBrains has been committed to supporting open source development. We work on multiple open source projects ourselves, and we provide free licenses to thousands of large and small non-commercial OS projects developed and maintained by the community. One of our earliest