20200822

• CPython 3.7 upgraded to 3.7.9
• CPython 3.8 upgraded to 3.8.5
• pip upgraded to 20.2.2
• setuptools upgraded to 49.6.0
• binutils upgraded to 2.35
• GCC upgraded to 10.2.0
• LLVM upgraded to 10.0.1
• musl upgraded to 1.2.1
• LibreSSL upgraded to 3.1.4
• Windows shared distributions now distribute a python3.dll file in addition to the pythonXY.dll file.

The macOS distributions for this release have an unwanted dependency on libintl.dylib, which isn't provided by macOS by default and binaries may not run on machines without gettext/libintl installed. Consider using the subsequent release.

20200530

This is a macOS only release that resolves an undefined symbol from libclang-rt inside the tk library.

20200517

• Python 3.8 upgraded to 3.8.3.
• OpenSSL upgraded to 1.1.1g.
• LibreSSL upgraded to 3.1.1.
• Linux build environment upgraded from Debian Wheezy to Jessie. This means the minimum version of glibc required has increased and the oldest glibc version that binaries will run on was released in 2014.
• Linux and macOS distribution now contain a dynamically linked libpython. Distributions contain both a dynamic and static libpython.
• macOS distributions now ship with their own build of tcl/tk 8.6. Previously, they relied on the system's tcl/tk 8.5.
• libncurses is now built with Unicode support.
• Windows static builds for Python 3.8 are now provided.
• Windows static builds no longer link against the Microsoft CRT and no longer have a dependency on vcruntime140.dll.

20200418

This is a somewhat major release.

The version of the PYTHON.json format has been changed to 5 and with that change comes a ton of new annotations. See https://python-build-standalone.readthedocs.io/en/latest/distributions.html#python-json-file for more.

This release also has initial support for Python 3.8! However, static Windows builds are not yet supported.

The version of LLVM used to build distributions has been upgraded from 9.0.1 to 10.0.0.

Also, the naming convention of the distribution archives has changed significantly. The names now convey the target host triple and the optimization level.

20200408

• CPython ugpraded from 3.7.6 to 3.7.7
• binutils upgraded from 2.32 to 2.34
• clang upgraded from 8.0.1 to 9.0.1
• gcc upgraded from 9.2.0 to 9.3.0
• libedit upgraded from 20181209-3.1 to 20191231-3.1
• libffi upgraded from 3.2.1 to 3.3
• ncurses upgraded from 6.1 to 6.2
• openssl upgraded from 1.1.1d to 1.1.1f
• readline upgraded from 6.3 to 8.0
• setuptools upgraded from 45.2.0 to 46.1.3
• tcl upgraded from 8.6.9 to 8.6.10
• tk upgraded from 8.6.9.1 to 8.6.10
• xz upgraded from 5.2.4 to 5.2.5

20200217

This releases fixes a regression on the MUSL Linux builds related to upgrading pip to version 20.0.2. The only commit is a fix for #30.

20200216

• CPython upgraded to 3.7.6
• Support for building a distribution with shared libraries on Windows
• pip and setuptools upgraded to latest versions (20.0.2 and 45.2.0, respectively)
• SQLite upgraded to 3.31.1
• PYTHON.json version updated to 4 to support advertising shared libraries, other metadata
• Debug symbols are installed next to binaries on Windows
• venv and test modules are included on Windows
• Working PGO support on Windows

20191025

• Upgrade CPython to 3.7.5
• Upgrade pip and setuptools to latest versions
• Upgrade SQLite to 3.30.1
• Upgrade OpenSSL to 1.1.1d
• Upgrade libressl to 3.0.2
• Fixed read-only files in archive
• Enable building on Catalina. This required unshipping our own Tcl/Tk libraries as well as the Tix library. The tkinter extension module now depends on the system Tcl/Tk frameworks, which should always be available (but are deprecated).

20190816

• PYTHON.json version bumped from 2 to 3 in order to define location of tcl files.
• Tcl/tk support on Linux and macOS builds. (Windows support is coming.)
• Zstandard compression on tarballs increased to result in archives ~50% of original size.
• Various files in tarballs are now symlinks instead of copies of the same file.
• SQLite version updated from 3.28 to 3.29.
• bzip2 version updated from 1.0.6 to 1.0.8 (includes a security fix).
• macOS now built with Clang/LLVM 8 instead of Clang/LLVM 6.
• Build systems for Linux and macOS unified.

20190713

• Python 3.7.4
• x86 Windows builds
• Working libedit extension variant on Linux
• Linux musl distribution now uses LibreSSL instead of OpenSSL