Sourced from psutil's changelog.

5.6.6

2019-11-25

Bug fixes

• 1179_: [Linux] Process cmdline() now takes into account misbehaving processes renaming the command line and using inappropriate chars to separate args.
• 1616_: use of Py_DECREF instead of Py_CLEAR will result in double free and segfault (CVE-2019-18874 <https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18874>__). (patch by Riccardo Schirone)
• 1619_: [OpenBSD] compilation fails due to C syntax error. (patch by Nathan Houghton)

5.6.5

2019-11-06

Bug fixes

• 1615_: remove pyproject.toml as it was causing installation issues.

5.6.4

2019-11-04

Enhancements

• 1527_: [Linux] added Process.cpu_times().iowait counter, which is the time spent waiting for blocking I/O to complete.
• 1565_: add PEP 517/8 build backend and requirements specification for better pip integration. (patch by Bernát Gábor)

Bug fixes

• 875_: [Windows] Process' cmdline(), environ() or cwd() may occasionally fail with ERROR_PARTIAL_COPY which now gets translated to AccessDenied.
• 1126_: [Linux] cpu_affinity() segfaults on CentOS 5 / manylinux. cpu_affinity() support for CentOS 5 was removed.
• 1528_: [AIX] compilation error on AIX 7.2 due to 32 vs 64 bit differences. (patch by Arnon Yaari)
• 1535_: 'type' and 'family' fields returned by net_connections() are not always turned into enums.
• 1536_: [NetBSD] process cmdline() erroneously raise ZombieProcess error if cmdline has non encodable chars.
• 1546_: usage percent may be rounded to 0 on Python 2.

... (truncated)

• c6cd256 pre release
• b2414b8 revert #1595
• c63369e updat HISTORY
• edb20f6 linux, cmdline(), fix for #1179, comment 552984549: sometimes string ends wit...
• d739cbb use PROCESS_QUERY_LIMITED_INFORMATION
• f7e898b #1595: use psutil_pid_is_running() instead of GetExitCodeProcess
• 72c84cb #fix #1595 / windows: kill() may not raise AccessDenied
• 1f8d432 Merge branch 'master' of github.com:giampaolo/psutil
• e6faebc release gil around users()/BSD (#1425)
• 5cb1b0b Merge branch 'master' of github.com:giampaolo/psutil
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