Build reliable systems at scale with courses that teach automation, resilience, and DevOps practices from tech giants.

Here is a guide with the best online courses to learn Software Reverse Engineering (SRE), a valuable tool for malware analysts, security researchers, and forensics investigators.

Unlock the full potential of ChatGPT and prompt engineering with these top-rated courses.

In Q4 2025, Duolingo announced it would let go of $50M in bookings to reach 100 million daily active users (DAUs) by 2028; a strategy Class Central covered in detail last month.  2026 is its “investment year,” and Q1 was the first quarter of execution. So far, the plan seems to be working. The Expected Results: Low Bookings, High DAUs Duolingo is running multiple tests to improve the free experience: spoken tokens for speaking practice, Speaking Adventures for real-world conversations, and fla