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v2.1.0 (2026-01-12)

  • Feature: A NewSplitLogger function was added that creates a logger that logs to two different loggers, depending on the log level. This type of logger is useful for separating logs into stdout and stderr when running as a service so that the service logs can be easily filtered.

v2.0.1 (2025-11-15)

  • Feature: A new GroubConfig.IgnoreSignalError boolean was added. When set to true, the error generated by the signal handler will not be returned from the group.Wait call. This makes it possible to gracefully terminate an application using a signal and have that application exit without error.

  • Change: The dcontext.WithoutCancel was removed. It's no longer needed because context.WithoutCancel has been added to the runtime library.

  • Change: The package name was changed from github.com/datawire/dlib to github.com/telepresenceio/dlib/v2 and the project was forked into the telepresenceio organization. The reason being that nobody responded to issues and pull-requests at datawire.

  • Change: The OptimizedLogger interface was removed in favor of making the Logger interface optimized and adding a default implementation to make it easy to create a simple logger.

v1.3.1 (2023-08-14)

  • Feature: Add dlog.MaxLogLevel function that returns the maximum log-level for the logger associated with the context.

  • Bugfix: Removed dot import of "context" causing compile errors due to conflicting WithoutCancel method when using golang >= 1.21

  • Change: Remove the "without error" suffix when goroutines exit.

v1.3.0 (2022-05-24)

  • Feature: derror: Implement a new type MultiError []error type for aggregating multiple errors together.

v1.2.5 (2022-05-24)

  • Bugfix: dlog: v1.2.4 introduced a regression that broke existing external implementors of the Logger interface. This has been fixed; implementations wishing to opt-in to v1.2.4's fast-logger behavior must now implement a distinct OptimizedLogger interface, which is not protected by the usual compatibility promises.

v1.2.4 (2021-08-27)

  • Feature: dlog: Support deferring formatting of log messages to the Logger backends, so that if the log message would be dropped time isn't wasted formatting it just for the backend to drop it. This arguably should have triggered a v1.3.0 version bump.

  • Feature: dcontext: A new WithoutCancel function allows protecting an inner call from being canceled. This arguably should have triggered a v1.3.0 version bump.

  • Feature: derror: PanicToError: Implement Go 1.13 error unwrapping. This arguably should have triggered a v1.3.0 version bump.

  • Bugfix: dexec: Sort-of fix soft shutdown on GOOS=windows. It is only possible to perform soft cancelation if cmd.SysProcAttr.CreationFlags includes syscall.CREATE_NEW_PROCESS_GROUP. If cmd.Start(ctx) detects that the Context is soft and that bit isn't set, then it returns an error rather than starting the process.

  • Bugfix: dcontext: Fix a bug where HardContext(WithoutContext(ctx)) can get canceled.

  • Minor: dlog: The default field order has changed.

  • Minor: dexec: Log when a signal is sent to the process.

  • Chore: Sync all borrowed files from the stdlib up to Go 1.15.14 (from 1.15.5/1.15.6).

v1.2.3 (2021-06-24)

  • Minor: dexec: The log formatting is now improved to take advantage of dlog functionality.

v1.2.2 (2021-06-22)

  • Feature: dlog: A new NewTestContextWithOpts function allows greater configurability of the created logger. This arguably should have triggered a v1.3.0 version bump.

v1.2.1 (2021-03-08)

  • Bugfix: dexec: Fix a panic that occurs when the Context is canceled for a Command for which .Start() returned an error.

  • Minor: dhttp: Have better connection-worker goroutine names.

  • Chore: Our patches to golang.org/x/net have been merged upstream, so we have upgraded to that and no longer include a bundled copy of it that includes our patches. This is not a user-facing change.

v1.2.0 (2021-01-29)

  • Feature: Introduce the dhttp library. The dutil HTTP functions are considered deprecated in favor of dhttp.

  • Change: Move dutil.PanicToError to derror.PanicToError, with a compatibility alias at dutil.PanicToError.

  • Minor: dcontext: Contexts returned from HardContext now implement fmt.Stringer for better debugability.

  • Additionally, there are several news items regarding the now-deprecated dutil HTTP functions:

    • Feature: The HTTP functions now use dlog by default.
    • Bugfix: Correctly call .Close() on the underlying net/http.Server upon hard cancelation.
    • Bugfix: Document that it is an error to set .BaseContext, detect this error condition and return an error if it is encountered.
    • Bugfix: Be more careful about leaking resources

v1.1.1 (2020-12-21)

  • Minor: dgroup: Be more intelligent about when to include or not include stacktraces with errors.

v1.1.0 (2020-12-09)

  • Feature: Introduce the dtime library.

  • Change: Move dutil.SleepWithContext to dtime.SleepWithContext. This is a breaking change, but we allowed it anyway because it had only been around at dutil for 12 days.

v1.0.0 (2020-12-01)

  • Feature: Initial public release. This is mostly all fairly mature code being open-sourced from Ambassador Edge Stack.

  • Featur: Add dutil.SleepWithContext implementing cancelable sleep.