A preliminary Just-In-Time (JIT) compiler was introduced to provide a foundation for future performance gains in the interpreter.
Continuing the trend from 3.11 and 3.12, error messages in 3.13 are more precise, offering better suggestions for fixing common mistakes. python 3.13.1 release date
While 3.13.1 was a bugfix release, it was notable for including security patches and ensuring a more secure environment for users transitioning from earlier versions. Key Features and Milestones of the 3.13 Series A preliminary Just-In-Time (JIT) compiler was introduced to