chrony-4.3-pre1 released

The first prerelease for chrony-4.3 is now available.

The source code is available here:
https://download.tuxfamily.org/chrony/chrony-4.3-pre1.tar.gz

SHA256 sum:
075e5b142b8a6ccbf55cbfbc8e1453084cb8d8f3e64dd87ac65284a50453a52d

Notable changes since version 4.2:

Enhancements
------------
* Add local option to refclock directive to stabilise system clock
  with more stable free-running clock (e.g. TCXO, OCXO)
* Add maxdelayquant option to server/pool/peer directive to replace
  maxdelaydevratio filter with long-term quantile-based filtering
* Add selection option to log directive
* Allow external PPS in PHC refclock without configurable pin
* Don't accept first interleaved response to minimise error in delay
* Don't use arc4random on Linux to avoid server performance loss
* Improve filter option to better handle missing NTP samples
* Improve stability with hardware timestamping and PHC refclock
* Update seccomp filter

Bug fixes
---------
* Fix waitsync command to reconnect when not getting response

-- 
Miroslav Lichvar

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