Google Colab Adds More Back to School Improvements!- Google Developers Blog

Introduces runtime versioning for Google Colab notebooks, allowing users to select specific runtime versions (e.g., '2025.07') to ensure reproducibility and mitigate dependency compatibility issues. This feature is documented via a backend-info GitHub repository that details pre-installed packages for each version. Enhancements to slideshow mode include starting presentations from the current cell and pairing collapsible headings with code cells. New URL parameters `#copy=true` and `#slideshowMode=true` simplify sharing and presentation workflows.