424 lines
16 KiB
Text
424 lines
16 KiB
Text
New in version 1.28
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===================
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* Combine sources to improve accuracy
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* Make config and command parser strict
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* Add -a option to chronyc to authenticate automatically
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* Add -R option to ignore initstepslew and makestep directives
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* Add generatecommandkey, minsamples, maxsamples and user directives
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* Improve compatibility with NTPv1 and NTPv2 clients
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* Create sockets only in selected family with -4/-6 option
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* Extend tracking log
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* Accept float values as initstepslew threshold
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* Allow hostnames in offline, online and burst commands
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* Fix and improve peer polling
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* Fix crash in config parsing with too many servers
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* Fix crash with duplicated initstepslew address
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* Fix delta calculation with extreme frequency offsets
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* Set local stratum correctly
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* Remove unnecessary adjtimex calls
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* Set paths in documentation by configure
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New in version 1.27
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===================
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* Support for stronger keys via NSS or libtomcrypt library
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* Support reading leap second data from tz database
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* Support for precise clock stepping on Linux
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* Support for nanoseconds in SHM refclock
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* Make offset corrections smoother on Linux
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* Make transmit timestamps random below clock precision
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* Add corrtimeratio and maxchange directives
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* Extend tracking, sources and activity reports
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* Wait in foreground process until daemon is fully initialized
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* Fix crash with slow name resolving
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* Fix iburst with jittery sources
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* Fix offset stored in rtc data right after trimrtc
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* Fix crash and hang with RTC or manual samples
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* Don't use readonly adjtime on Linux kernels before 2.6.28
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* Changed chronyc protocol, incompatible with older versions
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New in version 1.26
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===================
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* Add compatibility with Linux 3.0 and later
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* Use proper source address in NTP replies on multihomed IPv6 hosts
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* Accept NTP packets with versions 4, 3 and 2
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* Cope with unexpected backward time jumps
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* Don't reset kernel frequency on start without drift file
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* Retry on permanent DNS error by default
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* Add waitsync command
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New in version 1.25
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===================
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* Improve accuracy with NTP sources
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* Improve accuracy with reference clocks
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* Improve polling interval adjustment
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* Improve stability with temporary asymmetric delays
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* Improve source selection
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* Improve initial synchronisation
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* Add delayed server name resolving
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* Add temperature compensation
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* Add nanosecond slewing to Linux driver
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* Add fallback drifts
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* Add iburst, minstratum, maxdelaydevratio, polltarget,
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prefer, noselect options
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* Add rtcsync directive to enable Linux 11-minute mode
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* Add reselectdist, stratumweight, logbanner, maxclockerror,
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include directives
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* Add -n option to not detach daemon from terminal
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* Fix pidfile directive
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* Fix name resolving with disabled IPv6 support
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* Fix reloading sample histories with reference clocks
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* Fix crash with auto_offline option
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* Fix online command on auto_offline sources
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* Fix file descriptor leaks
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* Increase burst polling interval and stop on KoD RATE
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* Set maxupdateskew to 1000 ppm by default
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* Require password for clients command
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* Update drift file at most once per hour
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* Use system headers for Linux RTC support
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* Reduce default chronyc timeout and make it configurable
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* Avoid large values in chronyc sources and sourcestats output
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* Add reselect command to force reselecting best source
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* Add -m option to allow multiple commands on command line
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New in version 1.24
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===================
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Security fixes
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--------------
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* Don't reply to invalid cmdmon packets (CVE-2010-0292)
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* Limit client log memory size (CVE-2010-0293)
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* Limit rate of syslog messages (CVE-2010-0294)
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Bug fixes/Enhancements
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----------------------
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* Support for reference clocks (SHM, SOCK, PPS drivers)
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* IPv6 support
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* Linux capabilities support (to drop root privileges)
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* Memory locking support on Linux
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* Real-time scheduler support on Linux
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* Leap second support on Linux
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* Support for editline library
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* Support for new Linux readonly adjtime
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* NTP client support for KoD RATE
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* Read kernel timestamps for received NTP packets
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* Reply to NTP requests with correct address on multihomed hosts
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* Retry name resolving after temporary failure
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* Fix makestep command, make it available on all systems
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* Add makestep directive for automatic clock stepping
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* Don't require _bigadj kernel symbol on NetBSD
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* Avoid blocking read in Linux RTC driver
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* Support for Linux on S/390 and PowerPC
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* Fix various bugs on 64-bit systems
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* Fix valgrind errors and compiler warnings
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* Improve configure to support common options and variables
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* Improve status checking and printing in chronyc
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* Return non-zero exit code on errors in chronyc
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* Reduce request timeout in chronyc
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* Print estimated offset in sourcestats
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* Changed chronyc protocol, incompatible with older versions
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New in version 1.23
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===================
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* Support for MIPS, x86_64, sparc, alpha, arm, FreeBSD
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* Fix serious sign-extension error in handling IP addresses
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* RTC support can be excluded at compile time
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* Make sources gcc-4 compatible
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* Fix various compiler warnings
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* Handle fluctuations in peer distance better.
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* Fixed handling of stratum zero.
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* Fix various problems for 64-bit systems
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* Flush chronyc output streams after each command, to allow it to be driven
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through pipes
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* Manpage improvements
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Version 1.22
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============
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This release number was claimed by a release that Mandriva made to patch
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important bugs in 1.21. The official numbering has jumped to 1.23 as a
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consequence.
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New in version 1.21
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===================
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* Don't include Linux kernel header files any longer : allows chrony to compile
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on recent distros.
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* Stop trying to use RTC if continuous streams of error messages would occur
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(Linux with HPET).
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New in version 1.20
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===================
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* Many small tidy-ups and security improvements
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* Improve documentation (RTC support in post 2.0 kernels)
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* Remove trailing \n from syslog messages
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* Syslog messages now include IP and port number when packet cannot be sent.
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* Added the "acquisitionport" directive. (Kalle Olavi Niemitalo)
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* Use uname(2) instead of /proc/version to get kernel version.
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* Merge support for Linux on Alpha
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* Merge support for 64bit architectures
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* Don't link -lm if it's not needed
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* Fix Solaris build (broken by 64bit change)
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* Add detection of Linux 2.5
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* Allow arbitrary value of HZ in Linux kernel
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* Fix for chrony.spec on SuSE (Paul Elliot)
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* Fix handling of initstepslew if no servers are listed (John Hasler)
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* Fix install rule in Makefile if chronyd is in use (Juliusz Chroboczek)
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* Replace sprintf by snprintf to remove risk of buffer overrun (John Hasler)
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* Add --help to configure script
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New in version 1.19
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===================
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* Auto-detect kernel's timer interrupt rate (so-called 'HZ') when chronyd
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starts instead of relying on compiled-in value.
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* Fix 2 bugs in function that creates the directory for the log and dump files.
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* Amended webpage URL and contact details.
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* Generate more informative syslog messages before exiting on failed
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assertions.
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* Fix bugs in clamping code for the tick value used when slewing a large
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offset.
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* Don't chown files to root during install (should be pointless, and makes RPM
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building awkward as ordinary user.)
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* Include chrony.spec file for building RPMs
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New in version 1.18
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===================
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* Amend homepage and mailing list information to chrony.sunsite.dk
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* Delete pidfile on exit from chronyd.
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* Improvements to readline interface to chronyc
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* Only generate syslog message when synchronisation is initially lost (instead
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of on every failed synchronisation attempt)
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* Use double fork approach when initialising daemon.
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* More things in contrib directory.
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* New options to help package builders: --infodir/--mandir for configure, and
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DESTDIR=xxx for make. (See section 2.2 of chrony.txt for details).
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* Changed the wording of the messages generated by mailonchange and logchange
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directives.
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New in version 1.17
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===================
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* Port to NetBSD
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* Configuration supports Linux on PPC
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* Fix compilation warnings
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* Several documentation improvements
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* Bundled manpages (taken from the 'missing manpages project')
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* Cope with lack of bzero function for Solaris 2.3 systems
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* Store chronyd's pid in a file (default /var/run/chronyd.pid) and check if
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chronyd may already be running when starting up. New pidfile directive in
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configuration file.
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* Any size subnet is now allowed in allow and deny commands. (Example:
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6.7.8/20 or 6.7.8.x/20 (any x) mean a 20 bit subnet).
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* The environment variables CC and CFLAGS passed to configure can now be used
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to select the compiler and optimisation/debug options to use
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* Write syslog messages when chronyd loses synchronisation.
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* Print GPL text when chronyc is run.
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* Add NTP broadcast server capability (new broadcast directive).
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* Add 'auto_offline' option to server/peer (conf file) or add server/peer (via
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chronyc).
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* Add 'activity' command to chronyc, to report how many servers/peers are
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currently online/offline.
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* Fix long-standing bug with how the system time quantum was calculated.
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* Include support for systems with HZ!=100 (HZ is the timer interrupt
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frequency).
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* Include example chrony.conf and chrony.keys files (examples subdirectory).
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* Include support for readline in chronyc.
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New in version 1.16.1
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=====================
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* Fix compilation problem on Linux 2.4.13 (spinlock.h / spinlock_t)
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New in version 1.16
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===================
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* More informative captions for 'sources' and 'sourcestats' commands in chronyc
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(use 'sources -v' and 'sourcestats -v' to get them).
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* Correct behaviour for Solaris versions>=2.6 (dosynctodr not required on these
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versions.)
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* Remove some compiler warnings (Solaris)
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* If last line of keys file doesn't have end-of-line, don't truncate final
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character of that key.
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* Change timestamp format used in logfiles to make it fully numeric (to aid
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importing data into spreadsheets etc)
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* Minor documentation updates and improvements.
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New in version 1.15
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===================
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* Add contributed change to 'configure' to support Solaris 2.8 on x86
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* Workaround for assertion failure that arises if two received packets occur
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close together. (Still need to find out why this happens at all.)
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* Hopefully fix problem where fast slewing was incompatible with machines
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that have a large background drift rate (=> tick value went out of range
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for adjtimex() on Linux.)
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* Fix rtc_linux.c compile problems with 2.4.x kernel include files.
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* Include support for RTC device not being at /dev/rtc (new rtcdevice directive
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in configuration file).
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* Include support for restricting network interfaces for commands (new
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bindcmdaddress directive in configuration file)
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* Fix potential linking fault in pktlength.c (use of CROAK macro replaced by
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normal assert).
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* Add some material on bug reporting + contributing to the chrony.texi file
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* Made the chrony.texi file "Vim6-friendly" (removed xrefs on @node lines,
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added folding markers to chapters + sections.)
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* Switched over to GPL for the licence
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New in version 1.14
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===================
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* Fix compilation for certain other Linux distributions (including Mandrake
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7.1)
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New in version 1.13
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===================
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* Fixed compilation problems on Redhat/SuSE installations with recent 2.2.x
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kernels.
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* Minor tidy-ups and documentation enhancements.
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* Add support for Linux 2.4 kernels
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New in version 1.12
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===================
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* Trial fix for long-standing bug in Linux RTC estimator when system time is
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slewed.
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* Fix bug in chronyc if -h is specified without a hostname
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* Fixes to logging various error conditions when operating in daemon mode.
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* More stuff under contrib/
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* Changes to README file (e.g. about the new chrony-users mailing list)
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New in version 1.11a
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====================
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* Minor changes to contact details
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* Minor changes to installation details (chrony subdirectory under doc/)
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New in version 1.11
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===================
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* Improve robustness of installation procedure
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* Tidy up documenation and contact details
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* Distribute manual as .txt rather than as .ps
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* Add -n option to chronyc to work with numeric IP addresses rather than
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names.
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* Add material in contrib subdirectory
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* Improve robustness of handling drift file and RTC coefficients file
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* Improve robustness of regression algorithm
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New in version 1.1
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==================
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Bug fixes
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---------
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* Made linear regression more resistant to rounding errors (old one
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occasionally generated negative variances which made everything go
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haywire). Trap infinite or 'not-a-number' values being used to
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alter system clock to increase robustness further.
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Other changes/Enhancements
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--------------------------
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* Support for Linux 2.1 and 2.2 kernels
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* New command 'makestep' in chronyc to immediately jump the system
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time to match the NTP estimated time (Linux only) - a response to
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systems booting an hour wrong after summertime/wintertime changes,
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due to RTCs running on local time. Needs extending to Sun driver
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files too.
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* New directives 'logchange' and 'mailonchange' to log to syslog or
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email to a specific address respectively if chronyd detects a clock
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offset exceeding a defined threshold.
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* Added capability to log all client/peer NTP accesses and command
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accesses (can be turned off with conf file directive 'noclientlog').
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Added 'clients' command to chronyc to display this data.
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* Improved manual mode to use robust regression rather than 2 point
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fit.
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* Added 'manual list' and 'manual delete' commands to chronyc to
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allow display of entered timestamps and discretionary deletion of
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outliers.
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* If host goes unsynchronised the dummy IP address 0.0.0.0 is detected
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to avoid attempting a reverse name lookup (to stop dial on demand IP
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links from being started)
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* Changed chronyc/chronyd protocol so messages are now all variable
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length. Saves on network bandwidth particularly for large replies
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from chronyd to chronyc (to support the clients command).
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* Added bindaddress directive to configuration file, to give
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additional control over limiting which hosts can access the local
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server.
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* Groundwork done for a port to Windows NT to compile with Cygwin
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toolkit. chronyc works (to monitor another host). sys_winnt.c
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needs finishing to use NT clock control API. Program structure
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needs adapting to use Windows NT service functions, so it can be
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started at boot time. Hopefully a Windows NT / Cygwin guru with
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some spare time can take this port over :-)
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New in version 1.02
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===================
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Bug fixes
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---------
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* Fix error messages in chronyc if daemon is not reachable.
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* Fix config file problem for 'allow all' and 'deny all' without a
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trailing machine address.
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* Remove fatal failed assertion if command socket cannot be read from
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in daemon.
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* Rewrote timezone handling for Linux real time clock, following
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various reported problems related to daylight saving.
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Other changes/Enhancements
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--------------------------
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* Configure script recognizes BSD/386 and uses SunOS 4.1 driver for
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it.
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* Log files now print date as day-month-year rather than as a day
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number. Milliseconds removed from timestamps of logged data.
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Banners included in file to give meanings of columns.
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* Only do 1 initial step (followed by a trimming slew) when
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initialising from RTC on Linux (previously did 2 steps).
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New in version 1.01
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===================
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Bug fixes
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---------
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* Handle timezone of RTC correctly with respect to daylight saving
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time
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* Syntax check the chronyc 'local' command properly
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* Fixed assertion failed fault in median finder (used by RTC
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regression fitting)
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Other changes/Enhancements
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--------------------------
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* Log selection of new NTP reference source to syslog.
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* Don't zero-pad IP address fields
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* Add new command to chronyc to allow logfiles to be cycled.
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* Extend allow/deny directive syntax in configuration file to so
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directive can apply to all hosts on the Internet.
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* Tidy up printout of timestamps to make it clear they are in UTC
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* Make 'configure' check the processor type as well as the operating
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system.
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