We are introducing Python 3.13 as a new runtime option for Run Script in the cloud. The current Python runtime is Python 3.9, which reaches end of life at the end of October 2025. New run script and automatic transform actions will use the Python 3.13 runtime as default soon and all actions must be updated to the new runtime by the end of 2025.

To update your current run script and automatic transform actions, ensure that your Python script and requirements are compatible with the new runtime, then change the runtime option to "Python 3.13".