# Upgrade Guide

## [1.2.5] to [2.0.0b1]

### Updated package structures

Generated code now strictly follows the *package structure* of the `.proto` files.
Consequently `.proto` files without a package will be combined in a single `__init__.py` file.
To avoid overwriting existing `__init__.py` files, its best to compile into a dedicated subdirectory.

Upgrading:

- Remove your previously compiled `.py` files.
- Create a new *empty* directory, e.g. `generated` or `lib/generated/proto` etcetera.
- Regenerate your python files into this directory
- Update import statements, e.g. `import ExampleMessage from generated`