For Python 3.8, we provide one installer: 64-bit-only that works on macOS 10.9 (Mavericks) and later systems. Please see the documentation regarding Embedded Distribution for more information. There are redistributable zip files containing the Windows builds, making it easy to redistribute Python as part of another software package. There are now "web-based" installers for Windows platforms the installer will download the needed software components at installation time. (Also known as the "圆4" architecture, and formerly known as both "EM64T" and "x86-64".) The binaries for AMD64 will also work on processors that implement the Intel 64 architecture. There are many other interesting changes, please consult the "What's New" page in the documentation for a full list. 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
We are looking into improving the situation for Python 3.8.8. This limitation affects both Apple Silicon and Intel processors. However, a few features do not work correctly, most noticeably those involving searching for system libraries (vs user libraries) such as _library() and in Distutils. It will install on macOS 11 Big Sur and will run on Apple Silicon Macs using Rosetta 2 translation. Python 3.8.7 is not yet fully supported on macOS 11 Big Sur. Python 3.11 is now the latest feature release series of Python 3. Note: The release you're looking at is Python 3.8.7, a bugfix release for the legacy 3.8 series. 21, 2020 This is the seventh maintenance release of Python 3.8
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