Dev Weekly: Cursor Acquires Graphite, Coursera Merges with Udemy, Privacy Extensions Caught Selling AI Chats (Dec 15–21, 2025)
Cursor buys Graphite. Coursera and Udemy merge in $2.5B deal. Privacy extensions caught selling 8M users' AI conversations. GitHub walks back self-hosted runner fees. Let's Encrypt shortens cert lifetimes. US launches Genesis Mission.