A pathway for bringing a dated project up to current best practices — synthesized from 12 years of WWDC sessions (2014–2025). Pick your starting point, work the phases, check items off as you ship them.
A risk-minimizing migration that delivers early wins. Click a phase to expand and check off items as you complete them. Your progress persists in this browser.
Every item across all phases, filterable by category and urgency. Click any source to jump to the WWDC video.
What debuted and what was deprecated each year. Use this to figure out what your project predates.
Insights that don't fit a tidy category but are too valuable to lose. Click any card to open the source video.