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kvm/vendor/github.com/beevik/ntp/RELEASE_NOTES.md

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Release v1.4.3

Fixes

  • Fixed an overflow bug in the clock offset calculation introduced by release v1.4.2.

Release v1.4.2

Fixes

  • Fixed a bug in clock offset calculation.

Release v1.4.1

Updates

  • Upgraded package dependencies to retrieve security fixes.

Release v1.4.0

Changes

  • Added a protocol Version field to the Response struct.

Release v1.3.1

Changes

  • Added AES-256-CMAC support for symmetric authentication.
  • Symmetric auth keys may now be specified as ASCII or HEX using the "ASCII:" or "HEX:" prefixes.
  • Updated dependencies to address security issues.

Fixes

  • Added proper handling of the empty string when used as a server address.

Release v1.3.0

Changes

  • Added the ReferenceString function to Response. This generates a stratum-specific string for the ReferenceID value.
  • Optimized the AES CMAC calculation for 64-bit architectures.

Fixes

  • Fixed a bug introduced in release v1.2.0 that was causing IPv6 addresses to be interpreted incorrectly.

Release v1.2.0

Changes

  • Added support for NTP extensions by exposing an extension interface. Extensions are able to (1) modify NTP messages before being sent to the server, and (2) process NTP messages after they arrive from the server. This feature has been added in preparation for NTS support.
  • Added support for RFC 5905 symmetric key authentication.
  • Allowed server address to be specified as a "host:port" pair.
  • Brought package into further compliance with IETF draft on client data minimization.
  • Declared error variables as part of the public API.
  • Added a Dialer field to QueryOptions. This replaces the deprecated Dial field.
  • Added an IsKissOfDeath function to the Response type.

Deprecated

  • Deprecated the Port field in QueryOptions.
  • Deprecated the Dial field in QueryOptions.

Release v1.1.1

Fixes

  • Fixed a missing indirect go module dependency.

Release v1.1.0

Changes

  • Added the Dial property to the QueryOptions struct. This allows the user to override the default UDP dialer when setting up a connection to a remote NTP server.

Release v1.0.0

This package has been stable for several years with no bug reports in that time. It is also pretty much feature complete. I am therefore updating the version to 1.0.0.

Because this is a major release, all previously deprecated code has been removed from the package.

Breaking changes

  • Removed the TimeV function. Use Time or QueryWithOptions instead.

Release v0.3.2

Changes

  • Rename unit tests to enable easier test filtering.

Release v0.3.0

There have been no breaking changes or further deprecations since the previous release.

Changes

  • Fixed a bug in the calculation of NTP timestamps.

Release v0.2.0

There are no breaking changes or further deprecations in this release.

Changes

  • Added KissCode to the Response structure.

Release v0.1.1

Breaking changes

  • Removed the MaxStratum constant.

Deprecations

  • Officially deprecated the TimeV function.

Internal changes

  • Removed minDispersion from the RootDistance calculation, since the value was arbitrary.
  • Moved some validation into main code path so that invalid TransmitTime and mode responses trigger an error even when Response.Validate is not called.

Release v0.1.0

This is the initial release of the ntp package. Currently it supports the following features:

  • Time() to query the current time according to a remote NTP server.
  • Query() to query multiple pieces of time-related information from a remote NTP server.
  • QueryWithOptions(), which is like Query() but with the ability to override default query options.

Time-related information returned by the Query functions includes:

  • Time: the time the server transmitted its response, according to the server's clock.
  • ClockOffset: the estimated offset of the client's clock relative to the server's clock. You may apply this offset to any local system clock reading once the query is complete.
  • RTT: an estimate of the round-trip-time delay between the client and the server.
  • Precision: the precision of the server's clock reading.
  • Stratum: the "stratum" level of the server, where 1 indicates a server directly connected to a reference clock, and values greater than 1 indicating the number of hops from the reference clock.
  • ReferenceID: A unique identifier for the NTP server that was contacted.
  • ReferenceTime: The time at which the server last updated its local clock setting.
  • RootDelay: The server's round-trip delay to the reference clock.
  • RootDispersion: The server's total dispersion to the referenced clock.
  • RootDistance: An estimate of the root synchronization distance.
  • Leap: The leap second indicator.
  • MinError: A lower bound on the clock error between the client and the server.
  • Poll: the maximum polling interval between successive messages on the server.

The Response structure returned by the Query functions also contains a Response.Validate() function that returns an error if any of the fields returned by the server are invalid.