Yes really, curl is still developed

curl's lead developer addresses the common misconception that the project is no longer actively developed. Despite maintaining a stable user interface for decades, curl is currently experiencing its highest development activity ever. The project continuously evolves to keep pace with changing internet standards, protocols, and security requirements while prioritizing backwards compatibility. The team refactors internal architecture regularly without breaking existing APIs or command-line interfaces, viewing this stability as curl's core strength. With nearly 30 years of history, the project is being developed with the mindset that it could remain relevant for another 70 years.