pickle now uses Protocol 4 by default, improving performance.multiprocessing can now use shared memory segments to avoid pickling costs between processes.on macOS, the spawn start method is now used by default in multiprocessing.on Windows, the default asyncio event loop is now ProactorEventLoop.continue is now legal in finally: blocks.

f-strings support a handy = specifier for debugging.Debug builds share ABI as release builds.Parallel filesystem cache for compiled bytecode.

Typing-related: PEP 591 (Final qualifier), PEP 586 (Literal types), and PEP 589 (TypedDict).

PEP 574, Pickle protocol 5 with out-of-band data.

PEP 590, Vectorcall: a fast calling protocol for CPython.PEP 587, Python Initialization Configuration (improved embedding).Major new features of the 3.8 series, compared to 3.7 Python 3.11 is now the latest feature release series of Python 3. Note: The release you're looking at is Python 3.8.1, a bugfix release for the legacy 3.8 series. 18, 2019 This is Python 3.8.1, the first maintenance release of Python 3.8

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