Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+
+## [Unreleased]
+
+_No unreleased changes in the pipeline at the moment._
+
+
+## [5.0.6] - 2021-01-16
+
+### Added
+
+- As a result of the bugfix mentioned below, there is no performance motivation
+  to gate `raw` features behind a feature flag, so those features are now
+  available by default without a `raw_` prefix. Usage of the `raw_` prefix and
+  the `raw` feature flag is deprecated and these may be removed in a future
+  major release, but it doesn't harm to keep them indefinitely for now.
+
+### Changed
+
+- Benchmarks now use `criterion`, and have been significantly cleaned up along
+  the way. They are now more extensive and more reliable.
+- Moved MSRV to Rust 1.36 because we now use crossbeam for testing, which
+  requires that much. The crate itself should still support Rust 1.34 for now,
+  but we cannot test that it continues doing so...
+
+### Fixed
+
+- Removed a possibility of data race that was not observed on current hardware,
+  but could be triggered by future hardware or compiler evolutions. See
+  https://github.com/HadrienG2/triple-buffer/issues/14 .
+
+
+## [5.0.5] - 2020-07-05
+
+### Changed
+
+- Use only cache-padded instead of the full crossbeam-utils crate
+- Clean up CI config and cache Rust toolchain there
+
+
+## [5.0.4] - 2020-02-10
+
+### Added
+
+- Add a changelog to the repository.
+
+### Changed
+
+- Deduplicate CI configuration some more.
+
+### Fixed
+
+- Drop now-unnecessary manual `rustfmt` configuration.
+- Avoid false sharing of back-buffer information.
+
+
+## [5.0.3] - 2020-02-07
+
+### Changed
+
+- Clean up and deduplicate GitHub Actions configuration.
+- Tune down concurrent test speed to reduce CI false positives.
+
+
+## [5.0.2] - 2020-01-29
+
+### Changed
+
+- Move continuous integration to GitHub Actions.
+
+
+## [5.0.1] - 2019-11-07
+
+### Fixed
+
+- Update to current version of dependencies.
+
+
+## [5.0.0] - 2019-04-12
+
+### Changed
+
+- Bump travis CI configuration to Ubuntu Xenial.
+- Bump minimal supported Rust version to 1.34.0.
+
+### Fixed
+
+- Don't use an `usize` for buffer indices where an `u8` will suffice.
+- Improve Rust API guidelines compliance.
+
+
+## [4.0.1] - 2018-12-31
+
+### Fixed
+
+- Display `raw` feature documentation on docs.rs.
+
+
+## [4.0.0] - 2018-12-18
+
+### Changed
+
+- Migrate to Rust 2018.
+- Bump minimal supported Rust version to 1.31.0.
+
+### Fixed
+
+- Update to current version of dependencies.
+- Start using Clippy and integrate it into continuous integration.
+- Re-apply `rustfmt` coding style (was not in CI at the time...).
+
+
+## [3.0.1] - 2018-08-27
+
+### Fixed
+
+- Make `testbench` a dev-dependency, as it's only used for tests and benchmarks.
+
+
+## [3.0.0] - 2018-08-27
+
+### Changed
+
+- Buffers are now padded to the size of a cache line to reduce false sharing.
+- Bump minimal supported Rust version to 1.26.0.
+
+### Fixed
+
+- Make `testbench` version requirement more explicit.
+
+
+## [2.0.0] - 2018-02-11
+
+### Changed
+
+- Switch license to MPLv2, which is a better match to Rust's static linking
+  philosophy than LGPL.
+
+
+## [1.1.1] - 2017-11-19
+
+### Fixed
+
+- Fix my understanding of Cargo features & make the `raw` feature actually work.
+
+
+## [1.1.0] - 2017-11-18
+
+### Added
+
+- Allow in-place writes on the input and output side, at the cost of stronger
+  synchronization barriers, through use of the `raw` Cargo feature.
+
+### Fixed
+
+- Do not require a `Clone` bound on the inner data.
+
+
+## [1.0.0] - 2017-11-10
+
+### Changed
+
+- Simplify component naming convention, e.g. `TripleBufferInput` -> `Input`.
+
+
+## [0.3.4] - 2017-06-25
+
+### Changed
+
+- Use `testbench::RaceCell` as an improved form of data race detection in tests.
+
+### Fixed
+
+- Do not require a `PartialEq` bound on the inner data.
+
+
+## [0.3.3] - 2017-06-15
+
+### Changed
+
+- Tune down concurrent test speed to reduce CI false positives.
+
+
+## [0.3.2] - 2017-06-15
+
+### Changed
+
+- Tune down concurrent test speed to reduce CI false positives.
+
+
+## [0.3.1] - 2017-06-15
+
+### Changed
+
+- Tune down concurrent test speed to reduce CI false positives.
+
+
+## [0.3.0] - 2017-06-14
+
+### Added
+
+- Introduce Travis CI continuous integration.
+
+### Fixed
+
+- Use CI to clarify minimal supported Rust version (currently 1.12.0).
+
+
+## [0.2.4] - 2017-04-04
+
+### Changed
+
+- Use `testbench` crate for concurrent testing and benchmarking.
+
+
+## [0.2.3] - 2017-03-24
+
+### Changed
+
+- More detailed comparison with other synchronization primitives in README.
+
+### Fixed
+
+- Adopt `rustfmt` coding style.
+
+
+## [0.2.2] - 2017-03-20
+
+### Changed
+
+- Reduce reliance on Acquire-Release synchronization.
+
+
+## [0.2.1] - 2017-03-11
+
+### Changed
+
+- Make README a bit more spambot-proof.
+
+
+## [0.2.0] - 2017-03-11
+
+### Added
+
+- First tagged release of triple-buffer.
+
+
+
+[Unreleased]: https://github.com/HadrienG2/triple-buffer/compare/v5.0.6...HEAD
+[5.0.4]: https://github.com/HadrienG2/triple-buffer/compare/v5.0.5...v5.0.6
+[5.0.4]: https://github.com/HadrienG2/triple-buffer/compare/v5.0.4...v5.0.5
+[5.0.4]: https://github.com/HadrienG2/triple-buffer/compare/v5.0.3...v5.0.4
+[5.0.3]: https://github.com/HadrienG2/triple-buffer/compare/v5.0.2...v5.0.3
+[5.0.2]: https://github.com/HadrienG2/triple-buffer/compare/v5.0.1...v5.0.2
+[5.0.1]: https://github.com/HadrienG2/triple-buffer/compare/v5.0.0...v5.0.1
+[5.0.0]: https://github.com/HadrienG2/triple-buffer/compare/v4.0.1...v5.0.0
+[4.0.1]: https://github.com/HadrienG2/triple-buffer/compare/v4.0.0...v4.0.1
+[4.0.0]: https://github.com/HadrienG2/triple-buffer/compare/v3.0.1...v4.0.0
+[3.0.1]: https://github.com/HadrienG2/triple-buffer/compare/v3.0.0...v3.0.1
+[3.0.0]: https://github.com/HadrienG2/triple-buffer/compare/v2.0.0...v3.0.0
+[2.0.0]: https://github.com/HadrienG2/triple-buffer/compare/v1.1.1...v2.0.0
+[1.1.1]: https://github.com/HadrienG2/triple-buffer/compare/v1.1.0...v1.1.1
+[1.1.0]: https://github.com/HadrienG2/triple-buffer/compare/v1.0.0...v1.1.0
+[1.0.0]: https://github.com/HadrienG2/triple-buffer/compare/v0.3.4...v1.0.0
+[0.3.4]: https://github.com/HadrienG2/triple-buffer/compare/v0.3.3...v0.3.4
+[0.3.3]: https://github.com/HadrienG2/triple-buffer/compare/v0.3.2...v0.3.3
+[0.3.2]: https://github.com/HadrienG2/triple-buffer/compare/v0.3.1...v0.3.2
+[0.3.1]: https://github.com/HadrienG2/triple-buffer/compare/v0.3.0...v0.3.1
+[0.3.0]: https://github.com/HadrienG2/triple-buffer/compare/v0.2.4...v0.3.0
+[0.2.4]: https://github.com/HadrienG2/triple-buffer/compare/v0.2.3...v0.2.4
+[0.2.3]: https://github.com/HadrienG2/triple-buffer/compare/v0.2.2...v0.2.3
+[0.2.2]: https://github.com/HadrienG2/triple-buffer/compare/v0.2.1...v0.2.2
+[0.2.1]: https://github.com/HadrienG2/triple-buffer/compare/v0.2.0...v0.2.1
+[0.2.0]: https://github.com/HadrienG2/triple-buffer/releases/tag/v0.2.0