This new release comes with many improvements for developers.
Here are some of them.
Modules from the standard library are now potentially suggested as part of the error messages displayed by the interpreter ...
NameError: name 'sys' is not defined. Did you forget to import 'sys'?- Many large and small performance improvements like - PEP 709;
- Support for the Linux perf profiler to report Python function names in traces;
- New type annotation syntax for generic classes - PEP 695;
- More flexible f-string parsing, allowing many things previously disallowed - PEP 701;
- Support for the buffer protocol in Python code - PEP 688;
- A new debugging/profiling API - PEP 669;
- Support for isolated sub interpreters with separate Global Interpreter Locks - PEP 684;
All PEPs can be found on this GitHub project.