ntpsec (1.2.5+dfsg-1) unstable; urgency=medium

  The long-standing bug where `pool` entries count towards `maxclock` has
  been fixed.  The default ntp.conf has been updated accordingly.  If you
  have customized your `ntp.conf`, you can reduce `tos maxclock` by the
  number of `pool` entries in the file to retain the previous number of
  pool servers.

 -- Richard Laager <rlaager@debian.org>  Sun, 23 Aug 2026 15:09:49 -0500

ntpsec (1.2.1+dfsg1-6) unstable; urgency=low

  ntpsec is replacing ntp in Debian.

  If you were already using ntpsec, you can stop reading now.  For
  those coming from ntp, NTPsec is a drop-in replacement for common
  configurations, but some things have been removed or changed in the
  name of security and/or maintainability:
    https://docs.ntpsec.org/latest/ntpsec.html

  If you use a hardware clock, note that the Debian ntpsec package builds
  only the following drivers:
    arbiter,generic,hpgps,jjy,local,nmea,pps,shm,spectracom,trimble,zyfer

  NTPsec upstream dropped or deprecated several drivers:
    https://www.ntpsec.org/removal-plan.html
    https://www.ntpsec.org/drivers.html

  I am not building deprecated drivers.  However, if the reason for
  a driver's deprecation is only "two digit years", I am building it.

  gpsd can be connected to ntpd using the SHM driver:
    # GPS PPS reference (NTP1)
    refclock shm unit 1 refid PPS
    # GPS Serial data reference (NTP0)
    refclock shm unit 0 refid GPS

  For more gpsd <-> ntpd configuration details, see:
    https://www.ntpsec.org/white-papers/stratum-1-microserver-howto/
    https://gpsd.gitlab.io/gpsd/gpsd-time-service-howto.html

  The modem driver, despite working the last time I tested it, is NOT
  built because:
    1. Modems are not very common any more.
    2. Modem time services are disappearing (e.g. USNO's Washington D.C.
       number no longer answers).
    3. The telephone network is increasingly packet-switched rather
       than circuit-switched.  So you might as well use the Internet.
    4. Internet connections are always on.
    5. GPS receivers are cheap.

 -- Richard Laager <rlaager@debian.org>  Sun, 03 Apr 2022 15:23:36 -0500