The changes in version 1.23 are
* Support for MIPS, x86_64, sparc, alpha, arm, FreeBSD
* Fix serious sign-extension error in handling IP addresses
* RTC support can be excluded at compile time
* Make sources gcc-4 compatible
* Fix various compiler warnings
* Handle fluctuations in peer distance better.
* Fixed handling of stratum zero.
* Fix various problems for 64-bit systems
* Flush chronyc output streams after each command, to allow it to be
driven through pipes
* Manpage improvements
The changes in version 1.21 are
* Don't include Linux kernel header files any longer : allows chrony to
compile on recent distros.
* Stop trying to use RTC if continuous streams of error messages would
occur (Linux with HPET).
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