Python 3.10 is a version of the popular programming language Python, released in October 2021. It introduced several new features and improvements, making coding more efficient and enjoyable. Key enhancements include structural pattern matching, which allows for more expressive code, and precise error messages that help developers quickly identify issues. Additionally, Python 3.10 includes type hinting improvements, enabling better code clarity and type checking. This version also offers performance optimizations and various standard library updates, ensuring that developers have access to the latest tools and functionalities for their projects.