.`chrony` rebased to version 4.5 The `chrony` suite has been updated to version 4.5. Notable changes include: * Added support for the AES-GCM-SIV cipher to shorten Network Time Security (NTS) cookies to improve reliability of NTS over the internet, where some providers block or limit the rate of longer Network Time Protocol (NTP) messages. * Added periodic refresh of IP addresses of NTP sources specified by hostname. The default interval is two weeks and it can be disabled by adding `refresh 0` parameter to the `chrony.conf` file. * Improved automatic replacement of unreachable NTP sources. * Improved logging of important changes made by the `chronyc` utility. * Improved logging of source selection failures and falsetickers. * Added the `hwtstimeout` directive to configure timeout for late hardware transmit timestamps. * Added experimental support for corrections provided by Precision Time Protocol (PTP) transparent clocks to reach accuracy of PTP with hardware timestamping. * Added the `chronyd-restricted` service as an alternative service for minimal client-only configurations where the `chronyd` service can be started without `root` privileges. * Fixed the `presend` option in `interleaved` mode. * Fixed reloading of modified sources specified by IP address from the `sourcedir` directories.