Deprecation Strategy

Domain: Package Ideation

🎯 Motivation

APIs evolve, and removing features breaks users. A deprecation strategy — warnings, migration guides, and timelines — lets users adapt gradually instead of facing sudden breakage.

📋 Concrete Example

Renaming parse_file() to parse(): first release parse() alongside the old name, emit DeprecationWarning from parse_file(), document the change, then remove parse_file() in version 2.0.

🔗 Analogy

A bus route change is announced weeks ahead with notices at every stop. Suddenly canceling the route one morning strands riders — good transit authorities give warning and alternatives.