February 2026 AI Coding Explosion: Codex App, Xcode 26.3, Claude Opus 4.6 & Nativeline’s Multi-Platform Leap

The first week of February 2026 has been wild for anyone building native Apple apps. New tools and models dropped almost simultaneously, pushing agentic coding forward faster than ever. Some excite me massively; others show promise but need polish. Here’s the quick rundown. OpenAI’s Codex App