Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

• No changes yet.

[1.11.0] - 2023-05-02

Fixed

• Fix Swap and CompareAndSwap for Value wrappers without initialization.

Added

• Add String method to atomic.Pointer[T] type allowing users to safely print

underlying values of pointers.

[1.11.0]: https://github.com/uber-go/atomic/compare/v1.10.0...v1.11.0

[1.10.0] - 2022-08-11

Added

• Add atomic.Float32 type for atomic operations on float32.
• Add CompareAndSwap and Swap methods to atomic.String, atomic.Error,

and atomic.Value.

• Add generic atomic.Pointer[T] type for atomic operations on pointers of any

type. This is present only for Go 1.18 or higher, and is a drop-in for replacement for the standard library's sync/atomic.Pointer type.

Changed

• Deprecate CAS methods on all types in favor of corresponding

CompareAndSwap methods.

Thanks to @eNV25 and @icpd for their contributions to this release.

[1.10.0]: https://github.com/uber-go/atomic/compare/v1.9.0...v1.10.0

[1.9.0] - 2021-07-15

Added

• Add Float64.Swap to match int atomic operations.
• Add atomic.Time type for atomic operations on time.Time values.

[1.9.0]: https://github.com/uber-go/atomic/compare/v1.8.0...v1.9.0

[1.8.0] - 2021-06-09

Added

• Add atomic.Uintptr type for atomic operations on uintptr values.
• Add atomic.UnsafePointer type for atomic operations on unsafe.Pointer values.

[1.8.0]: https://github.com/uber-go/atomic/compare/v1.7.0...v1.8.0

[1.7.0] - 2020-09-14

Added

• Support JSON serialization and deserialization of primitive atomic types.
• Support Text marshalling and unmarshalling for string atomics.

Changed

• Disallow incorrect comparison of atomic values in a non-atomic way.

Removed

• Remove dependency on golang.org/x/{lint, tools}.

[1.7.0]: https://github.com/uber-go/atomic/compare/v1.6.0...v1.7.0

[1.6.0] - 2020-02-24

Changed

• Drop library dependency on golang.org/x/{lint, tools}.

[1.6.0]: https://github.com/uber-go/atomic/compare/v1.5.1...v1.6.0

[1.5.1] - 2019-11-19

• Fix bug where Bool.CAS and Bool.Toggle do work correctly together

causing CAS to fail even though the old value matches.

[1.5.1]: https://github.com/uber-go/atomic/compare/v1.5.0...v1.5.1

[1.5.0] - 2019-10-29

Changed

• With Go modules, only the go.uber.org/atomic import path is supported now.

If you need to use the old import path, please add a replace directive to your go.mod.

[1.5.0]: https://github.com/uber-go/atomic/compare/v1.4.0...v1.5.0

[1.4.0] - 2019-05-01

Added

• Add atomic.Error type for atomic operations on error values.

[1.4.0]: https://github.com/uber-go/atomic/compare/v1.3.2...v1.4.0

[1.3.2] - 2018-05-02

Added

• Add atomic.Duration type for atomic operations on time.Duration values.

[1.3.2]: https://github.com/uber-go/atomic/compare/v1.3.1...v1.3.2

[1.3.1] - 2017-11-14

Fixed

• Revert optimization for atomic.String.Store("") which caused data races.

[1.3.1]: https://github.com/uber-go/atomic/compare/v1.3.0...v1.3.1

[1.3.0] - 2017-11-13

Added

• Add atomic.Bool.CAS for compare-and-swap semantics on bools.

Changed

• Optimize atomic.String.Store("") by avoiding an allocation.

[1.3.0]: https://github.com/uber-go/atomic/compare/v1.2.0...v1.3.0

[1.2.0] - 2017-04-12

Added

• Shadow atomic.Value from sync/atomic.

[1.2.0]: https://github.com/uber-go/atomic/compare/v1.1.0...v1.2.0

[1.1.0] - 2017-03-10

Added

• Add atomic Float64 type.

Changed

• Support new go.uber.org/atomic import path.

[1.1.0]: https://github.com/uber-go/atomic/compare/v1.0.0...v1.1.0

[1.0.0] - 2016-07-18

• Initial release.

[1.0.0]: https://github.com/uber-go/atomic/releases/tag/v1.0.0