Sean and Derek discuss thoughtful deprecations, backwards compatibility, and other joys of library maintenance.
- Ember 2.0 - Stability without Stagnation
- Ruby 2.2 on Rails 3.2. Now merged, but unreleased.
- The original removal of ARel type casting
- Narrowing the scope - a less impactful ARel deprecation
- Rails changes to accompany the ARel API changes.
- An example of an issue these refactorings solve.