# Karafka core changelog

## 2.4.0 (Unreleased)
- **[Breaking]** Drop Ruby `2.7` support.
- [Enhancement] Provide necessary alterations for custom oauth token callbacks to operate.
- [Change] Set minimum `karafka-rdkafka` on `0.15.0` to support new features.

## 2.3.0 (2024-01-26)
- [Change] Set minimum `karafka-rdkafka` on `0.14.8` to support new features.
- [Change] Remove `concurrent-ruby` usage.

## 2.2.7 (2023-11-07)
- [Change] Set minimum `karafka-rdkafka` on `0.13.9` to support alternative consumer builder.

## 2.2.6 (2023-11-03)
- [Enhancement] Set backtrace for errors propagated via the errors callbacks.

## 2.2.5 (2023-10-31)
- [Change] Drop support for Ruby 2.6 due to incompatibilities in usage of `ObjectSpace::WeakMap`
- [Change] Set minimum `karafka-rdkafka` on `0.13.8` to support consumer `#position`.

## 2.2.4 (2023-10-25)
- [Enhancement] Allow for `lazy` evaluated constructors.
- [Enhancement] Allow no-arg constructors.

## 2.2.3 (2023-10-17)
- [Change] Set minimum `karafka-rdkafka` on `0.13.6`.

## 2.2.2 (2023-09-11)
- [Fix] Reuse previous frozen duration as a base for incoming computation.

## 2.2.1 (2023-09-10)
- Optimize statistics decorator by minimizing number of new objects created.
- Expand the decoration to include new value `_fd` providing freeze duration in milliseconds. This value informs us for how many consecutive ms the given value did not change. It can be useful for detecting values that should change once in a while but are stale.

## 2.2.0 (2023-09-01)
- [Maintenance] Update the signing cert (old expired)

## 2.1.1 (2023-06-28)
- [Change] Set minimum `karafka-rdkafka` on `0.13.1`.

## 2.1.0 (2023-06-19)
- [Change] Set `karafka-rdkafka` requirement from `>= 0.13.0` to `<= 0.14.0`.
- [Change] Remove no longer needed patch.

## 2.0.13 (2023-05-26)
- Set minimum `karafka-rdkafka` on `0.12.3`.

## 2.0.12 (2023-02-23)
- Introduce ability to tag certain objects by including the `Karafka::Core::Taggable` module.

## 2.0.11 (2023-02-12)
- Set minimum `karafka-rdkafka` on `0.12.1`.

## 2.0.10 (2023-02-01)
- Move `RspecLocator` to core.

## 2.0.9 (2023-01-11)
- Use `karafka-rdkafka` instead of `rdkafka`. This change is needed to ensure that all consecutive releases are stable and compatible.
- Relax Ruby requirement to `2.6`. It does not mean we officially support it but it may work. Go to [Versions Lifecycle and EOL](https://karafka.io/docs/Versions-Lifecycle-and-EOL/) for more details.

## 2.0.8 (2023-01-07)
- Add `Karafka::Core::Helpers::Time` utility for time reporting.

## 2.0.7 (2022-12-18)
- Allow for recompilation of config upon injecting new config nodes.
- Compile given config scope automatically after it is defined.
- Support sub-config merging via their nested definitions.

## 2.0.6 (2022-12-07)
- Reverse node compilation state tracking removal.

## 2.0.5 (2022-12-07)
- Move `librdkafka` generic (producer and consumer) patches from WaterDrop here.
- Move dependency on `librdkafka` here from both Karafka and WaterDrop to unify management.
- Move `CallbacksManager` from WaterDrop because it's shared.

## 2.0.4 (2022-11-20)
- Disallow publishing events that were not registered.
- Fix a potential race condition when adding listeners concurrently from multiple threads.

## 2.0.3 (2022-10-13)
- Maintenance release. Cert chain update. No code changes.

## 2.0.2 (2022-08-01)
- Add extracted statistics decorator (#932)

## 2.0.1 (2022-07-30)
- Fix a case where setting would match a method monkey-patched on an object (#1) causing initializers not to build proper accessors on nodes. This is not the core bug, but still worth handling this case.

## 2.0.0 (2022-07-28)
- Initial extraction of common components used in the Karafka ecosystem from WaterDrop.