Have you had experience updating projects or systems to new Python versions?

Yes, experience updating projects to new Python versions includes several key stages:

1. Analyzing changes between Python versions, especially incompatible changes and new features.
2. Checking project dependencies — libraries and frameworks — to ensure they support the new version.
3. Updating code considering new syntax or behavioral changes (e.g., changes in function behavior, removal of deprecated modules).
4. Testing the project — writing and running automated tests to identify issues.
5. Gradual deployment and monitoring in production.

For example, when transitioning from Python 2 to Python 3, it was necessary to consider changes in string and byte handling, modified input/output functions, and other aspects.

Such experience helps ensure stability and leverage the advantages of new language versions.