Question 1

How is the sunset date calculated?

Accepted Answer

Sunset date = deprecation notice date + support window after notice. The deprecation date is set relative to today based on notice period.

Question 2

What is the sigmoid migration model?

Accepted Answer

p(t) = 100 / (1 + exp(-k*(t - t_midpoint))). Fast adopters (40% in month 1) shape the curve; k and midpoint are derived from client adoption speed input.

Question 3

How are stranded clients estimated?

Accepted Answer

Stranded % = 100 - migration % at sunset date. The tool shows risk for each version and aggregates across active versions.

⏳ API Deprecation Timeline Planner

⚙️ Parameters

📊 Lifecycle & Migration

📋 Recommended deprecation policy

🔔 Communication schedule