Hacker News on 1 December 2015

• Leaving the Mac App Store
• A letter to our daughter
• This Is Not a Day Care. It’s a University
• Linux Performance Analysis
• Mozilla Wants To Split Off Its Thunderbird Email/Chat Client
• WhatsApp is blocking Telegram links
• Three Stories
• Next Generation Eclipse IDE
• Flexbox Froggy: A game for learning CSS flexbox
• Someone left my Gmail in debug mode