Tell me more about the migration from Angular 10 to 16 — how did you do it, what stages were involved?

Upgrading from Angular 10 to Angular 16 typically involves several stages:

1. Current project analysis — assessing used APIs, third-party libraries, and potential incompatibilities.
2. Updating Angular CLI and dependencies — incremental updates through intermediate versions (e.g., 10 → 12 → 14 → 16) to avoid large jumps.
3. Code refactoring — adapting to new features and API changes, such as replacing deprecated methods and using new features like Standalone Components.
4. Testing — thorough coverage with unit and e2e tests to identify regressions.
5. Optimization and implementation of new features — utilizing performance improvements and new Angular 16 tools.

This approach minimizes risks and simplifies quality control at each stage.