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For detailed changes, see the changes either in the OpenBSD CVS repository or
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the GitHub mirror.
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2017-07-13 OpenNTPD 6.2p1
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* Added option "query from <ip>" to ntpd.conf, to specify a local IP
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address for outgoing NTP queries.
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2017-07-13 OpenNTPD 6.1p1
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* Quieted warnings about constraint connection retries.
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* Implemented fork+exec for ntpd child processes.
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* Added imsg inter-process reliability fixes.
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* Fixed memory leaks and reduced heap memory usage.
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* Numerous logging improvements and additions.
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* Added macOS 10.12 getentropy support.
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* Fixed arc4random blacklist use native implementations where
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possible.
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2016-05-30 OpenNTPD 6.0p1
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* Fixed a link failure on older Linux distributions and a build
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failure on FreeBSD.
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* Set MOD_MAXERROR to avoid unsynced time status when using
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ntp_adjtime.
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* Fixed HTTP Timestamp header parsing to use strptime in a more
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portable fashion.
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* Hardened TLS for ntpd constraints, enabling server name
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verification. Thanks to Luis M. Merino.
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2016-03-29 OpenNTPD 5.9p1
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* When a single "constraint" is specified, try all returned addresses
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until one succeeds, rather than the first returned address.
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* Relaxed the constraint error margin to be proportional to the number
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of NTP peers, avoid constant reconnections when there is a bad NTP
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peer.
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* Removed disabled hotplug sensor support.
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* Added support for detecting crashes in constraint subprocesses.
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* Moved the execution of constraints from the ntp process to the
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parent process, allowing for better privilege separation since the
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ntp process can be further restricted.
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* Added pledge(2) support.
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* Updated to require LibreSSL 2.3.2 or greater.
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* Fixed high CPU usage when the network is down.
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* Fixed various memory leaks.
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* Switched to RMS for jitter calculations.
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* Unified logging functions with other OpenBSD base programs.
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OpenNTPD portable-specific changes:
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* Added support for syncing time with the Realtime Clock (RTC) on OSes
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that require it.
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* CFLAGS is no longer overridden by the build system.
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* FreeBSD RTABLE support is disabled
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* FreeBSD is no longer linked with -lmd to avoid hash function
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collisions, causing failures in constraint certificate loading.
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* Fixed crashes due to __progname being used before initialized.
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* Added Solaris 10 compatibility.
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* Added --disable-https-constraint build option for explicitly
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disabling constraint support.
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* Synced build system files with LibreSSL
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The libtls library, as shipped with LibreSSL 2.3.2 or later, is
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required to use the HTTPS constraint feature, though it is not
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required to use OpenNTPD.
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2015-03-24 OpenNTPD 5.7p4
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* Added support for HTTPS constraints to validate NTP responses.
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See the man page and example config file for how to configure it.
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The initial announcement:
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http://marc.info/?l=openbsd-tech&m=142356166731390&w=2 is an
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explanation of the rationale and how the feature works.
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* Workaround an apparent bug in Solaris adjtime that cause the clock
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to report sync/unsync continuously.
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* Workaround an issue on systems with 32-bit time_t that causes an
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overflow if the system time is later than early 2036.
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The libtls library, as shipped with LibreSSL 2.1.4 or later, is
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required to use the HTTPS constraint feature, though it is not
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required to use OpenNTPD.
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2015-01-27 OpenNTPD 5.7p3
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* Fixed issue resolving hostnames when the network is initially
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unavailable.
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* Fixed process name logging on Linux and OS X.
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* Fixed adjfreq failures on Solaris due to uninitialized struct timex.
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* Support building on Linux musl libc.
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* Default privilege separation directory changed from /var/empty/ntp
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to /var/empty. Please ensure that if you are using the default from
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previous releases that the privsep directory is empty, owned by
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root, and has no write privileges for other users.
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2015-01-20 OpenNTPD 5.7p2
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* Switched the drift file from an unscaled frequency offset to ppm.
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The latter format is compatible with that of ntp.org. This allows
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easy switching between ntpd daemons
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* Fixed a memory leak in DNS lookups.
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* Added support for setting the process title on Linux and OS X.
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The different processes are now possible to tell apart by role in
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the process list.
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* Import NetBSD support.
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* Various bugfixes and refinements from the community.
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2015-01-08 OpenNTPD 5.7p1
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* Support for a new build infrastructure based on the LibreSSL
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framework. Source code is integrated directly from the OpenBSD tree
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with few manual changes, easing maintenance.
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* Removed support for several OSes pending test reports and updated
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portability code.
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* Supports the Simple Network Time Protocol version 4 as described in
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RFC 5905
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* Added route virtualization (rdomain) support.
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* Added ntpctl(8), which allows for querying ntpd(8) at runtime.
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* Finer-grained clock adjustment via adjfreq / ntp_adjtime where
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available.
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* Improved latency on heavily-loaded machines.
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