Update changelog and version #797

Job	Run time
build_python_27 (ubuntu-20.04, yes)	2m 13s
test_c_linux (0, x64)	1m 0s
build_python_27 (ubuntu-20.04, no)	2m 14s
build (3.5, yes, ubuntu-20.04)	2m 8s
build_python_27 (windows-latest, yes)	3m 59s
build (3.5, no, ubuntu-20.04)	2m 2s
mypy	14s
test_c_linux (0, x32)	1m 6s
build_python_27 (windows-latest, no)	3m 25s
build (3.6, yes, ubuntu-20.04)	2m 13s
test_c_linux (1, x64)	55s
build (3.6, no, ubuntu-20.04)	2m 4s
test_c_linux (1, x32)	1m 10s
build (3.7, yes, ubuntu-20.04)	2m 3s
build (3.7, no, ubuntu-20.04)	2m 4s
build (3.8, yes, ubuntu-20.04)	2m 1s
build (3.8, no, ubuntu-20.04)	1m 57s
test_c_windows (x64)	35s
test_c_windows (win32)	1m 0s
build (3.9, yes, ubuntu-20.04)	1m 54s
build (3.9, no, ubuntu-20.04)	1m 53s
build (3.10, yes, ubuntu-20.04)	1m 51s
build (3.10, no, ubuntu-20.04)	1m 54s
build (3.11, yes, ubuntu-20.04)	1m 41s
build (3.11, no, ubuntu-20.04)	1m 41s
build (3.12-dev, yes, ubuntu-20.04)	1m 44s
build (3.12-dev, no, ubuntu-20.04)	1m 48s
build (3.11, yes, macos-12)	3m 38s
build (3.11, no, windows-latest)	3m 58s
build (3.11, yes, windows-latest)	4m 35s
build (3.12-dev, no, windows-latest)	3m 48s
build (3.12-dev, yes, windows-latest)	4m 10s
build (pypy2.7, no, ubuntu-latest)	1m 26s
build (pypy3.9, no, ubuntu-latest)	1m 34s
	1h 11m 58s

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