114 lines
4.1 KiB
Markdown
114 lines
4.1 KiB
Markdown
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# Changelog
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All notable changes to this project will be documented in this file.
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The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
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and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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## [1.2.1](https://github.com/elixir-telemetry/telemetry/tree/v1.2.0)
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### Fixed
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- Fixed a local handler warning log when using `telemetry_test`. (#124)
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## [1.2.0](https://github.com/elixir-telemetry/telemetry/tree/v1.2.0)
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### Added
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- Added `telemetry_test` module for testing telemetry events. (#118)
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## [1.1.0](https://github.com/elixir-telemetry/telemetry/tree/v1.1.0)
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### Added
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- Added `monotonic_time` measurement to all span events. (#92)
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- Added a `[telemetry, handler, failure]` event emitted when any handler fails and is detached. (#98)
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- Added a `mix.exs` file, lowering the memory footprint of compilation in Elixir projects. (#103)
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## [1.0.0](https://github.com/elixir-telemetry/telemetry/tree/v1.0.0)
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There are no changes in the 1.0.0 release - it marks the stability of the API.
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## [0.4.3](https://github.com/elixir-telemetry/telemetry/tree/v0.4.3)
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This release improves the `telemetry:span/3` function by adding the `telemetry_span_context` metadata
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to all span events. The new metadata enables correlating span events that belong to the same span.
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### Added
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- Added `telemetry_span_context` metadata to all events emitted by `telemetry:span/3`.
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## [0.4.2](https://github.com/elixir-telemetry/telemetry/tree/v0.4.2)
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### Added
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- Added the `telemetry:span/3` function.
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## [0.4.1](https://github.com/elixir-telemetry/telemetry/tree/v0.4.1)
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Apart from the code changes listed below, this release includes a few improvements
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to the documentation.
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### Changed
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- Calls to `execute/3` when `telemetry` application is not started no longer cause an error.
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## [0.4.0](https://github.com/elixir-telemetry/telemetry/tree/v0.4.0)
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A single event value has been replaced by a map of measurements. Now it is up to the consumer of the
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event to decide what part of the payload is important. This is useful in cases where event indicates
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that a thing happened but there are many properties describing it. For example, a database query
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event may include total time, decode time, wait time and other measurements.
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### Changed
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- `execute/3` now accepts a map of measurements instead of event value
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### Deprecated
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- `:telemetry.execute/3` with an event value in favour of `:telemetry.execute/3` with a map of
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measurements. If the event value is provided, it is put in a map under a `:value` key and provided
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as measurements to a handler function.
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## [0.3.0](https://github.com/elixir-telemetry/telemetry/tree/v0.3.0)
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This release marks the conversion from Elixir to Erlang. This is a breaking change, but the benefits
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largely surpass the drawbacks - Telemetry core can now be used by all projects running on the BEAM,
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regardless of the language they're written in.
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### Added
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- Added `:telemetry.handler/0`, `:telemetry.handler_function/0` and `:telemetry.handler_config/0`
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types.
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### Changed
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- The library has been rewritten to Erlang. In Elixir, `:telemetry` module has to be used in place
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of `Telemetry`. In Erlang, `telemetry` module has to be used in place of `'Elixir.Telemetry'`;
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- `:telemetry.list_handlers/1` returns a list of maps (of type `:telemetry.handler/0`) instead of
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a list of tuples;
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- `:telemetry.attach/4` and `:telemetry.attach_many/4` replaced the 5-arity versions and now accept
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an anonymous function for the handler function instead of a module and function name.
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### Removed
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- Removed `:telemetry.attach/5` and `:telemetry.attach_many/5` - 4-arity versions need to be used
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now instead.
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## [0.2.0](https://github.com/elixir-telemetry/telemetry/tree/v0.2.0)
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The main point of this release is to mark base Telemetry API as stable, so that other libraries can
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rely on it without worrying about backwards compatibility.
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### Removed
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- Removed `Telemetry.attach/4` and `Telemetry.attach_many/4` - the handler config is now required.
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### Fixed
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- Fixed type specs which were producing Dialyzer errors.
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## [0.1.0](https://github.com/elixir-telemetry/telemetry/tree/v0.1.0)
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First release of Telemetry library.
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