Preparing release v0.4.0 (#328)

Author: owais

CHANGELOG.md

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+# Changelog
+
+## Unreleased
+
+## v0.4.0
+
+Released 17-06-2020
+
+# 🎉 OpenTelemetry Collector Contrib v0.4.0 (Beta) 🎉
+
+The OpenTelemetry Collector Contrib contains everything in the [opentelemetry-collector release](https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.4.0) (be sure to check the release notes here as well!). Check out the [Getting Started Guide](https://opentelemetry.io/docs/collector/about/) for deployment and configuration information.
+
+## 🛑 Breaking changes 🛑
+
+  - `signalfx` exporter `url` parameter changed to `ingest_url` (no impact if only using `realm` setting)
+
+## 🚀 New components 🚀
+
+- Receivers
+  - `receiver_creator` to create receivers at runtime (#145), add observer support to receiver_creator (#173), add rules support (#207), add dynamic configuration values (#235) 
+  - `kubeletstats` receiver (#237) 
+  - `prometheus_simple` receiver (#184) 
+  - `kubernetes-cluster` receiver (#175) 
+  - `redis` receiver (#138)
+- Exporters
+  - `alibabacloudlogservice` exporter (#259) 
+  - `SplunkHEC` metrics exporter (#246)
+  - `elastic` APM exporter (#240)
+  - `newrelic` exporter (#229) 
+- Extensions
+  - `k8s` observer (#185) 
+
+## 💡 Enhancements 💡
+
+- `awsxray` exporter
+  - Use X-Ray convention of segment name == service name (#282)
+  - Tweak xray export to improve rendering of traces and improve parity (#241)
+  - Add handling for spans received with nil attributes (#212)
+- `honeycomb` exporter
+  - Use SendPresampled (#291)
+  - Add span attributes as honeycomb event fields (#271)
+  - Support resource labels in Honeycomb exporter (#20)
+- `k8s` processor
+  - Add support of Pod UID extraction to k8sprocessor (#219)
+  - Use `k8s.pod.ip` to record resource IP instead of just `ip` (#183)
+  - Support same authentication mechanism as other kubernetes components do (#307)
+- `sapm` exporter: Add TLS for SAPM and SignalFx receiver (#215)
+- `signalfx` exporter
+  - Add metric metadata syncer to SignalFx exporter (#231)
+  - Add TLS for SAPM and SignalFx receiver (#215)
+- `stackdriver` exporter: Add support for resource mapping in config (#163)
+
+## 🧰 Bug fixes 🧰
+
+- `awsxray` exporter: Wrap bad request errors for proper handling by retry queue (#205)
+- `lightstep` exporter: Ensure Lightstep exporter doesnt crash on nil node (#250)
+- `sapm` exporter: Do not break Jaeger traces before sending downstream (#193)
+- `k8s` processor: Ensure Jaeger spans work in passthrough mode (262)
+
+## 🧩 Components 🧩
+
+### Receivers
+
+| Traces | Metrics |
+|:-------:|:-------:|
+| Jaeger Legacy | Carbon |
+| SAPM (SignalFx APM) | Collectd | 
+| Zipkin Scribe | K8s Cluster |
+| | Redis |
+| |  SignalFx | 
+| | Simple Prometheus |
+| | Wavefront |
+
+### Processors
+
+- K8s
+
+### Exporters
+
+| Commercial | Community |
+|:------------:|:-----------:|
+| Alibaba Cloud Log Service | Carbon |
+| AWS X-ray | Elastic |
+| Azure Monitor | Jaeger Thrift |
+| Honeycomb | Kinesis |
+| Lightstep |
+| New Relic |
+| SAPM (SignalFx APM) | 
+| SignalFx (Metrics) |
+| Splunk HEC |
+| Stackdriver (Google) |
+
+### Extensions
+
+- Observer
+  - K8s
+
+## v0.3.0 Beta
+
+Released 2020-03-30
+
+### Breaking changes
+
+-  Make prometheus receiver config loading strict. #697 
+Prometheus receiver will now fail fast if the config contains unused keys in it.
+
+### Changes and fixes
+
+- Enable best effort serve by default of Prometheus Exporter (https://github.com/orijtech/prometheus-go-metrics-exporter/pull/6)
+- Fix null pointer exception in the logging exporter #743 
+- Remove unnecessary condition to have at least one processor #744 
+- Updated Honeycomb exported to `honeycombio/opentelemetry-exporter-go v0.3.1`
+
+### Features
+
+Receivers / Exporters:
+
+* AWS X-Ray
+* Carbon
+* CollectD
+* Honeycomb
+* Jaeger
+* Kinesis
+* LightStep
+* OpenCensus
+* OpenTelemetry
+* SAPM
+* SignalFx
+* Stackdriver
+* Wavefront
+* Zipkin
+* Zipkin Scribe
+
+
+Processors:
+
+* Attributes
+* Batch
+* Memory Limiter
+* Queued Retry
+* Resource
+* Sampling
+* Span
+* Kubernetes
+
+Extensions:
+
+* Health Check
+* Performance Profiler
+* zPages
+
+
+## v0.2.8
+
+Released 2020-03-25
+
+Alpha v0.2.8 of OpenTelemetry Collector Contrib.
+
+- Implemented OTLP receiver and exporter.
+- Added ability to pass config to the service programmatically (useful for custom builds).
+- Improved own metrics / observability.
+
+
+## v0.2.7
+
+Released 2020-03-17
+
+### Self-Observability
+- New command-line switch to control legacy and new metrics. Users are encouraged
+to experiment and migrate to the new metrics.
+- Improved error handling on shutdown.
+
+
+### Processors
+- Fixed passthrough mode k8sprocessor.
+- Added `HASH` action to attribute processor.
+
+### Receivers and Exporters
+- Added Honeycomb exporter.
+- Added LightStep exporter.
+- Added regular expression for Carbon receiver, allowing the metric name to be broken into proper label keys and values.
+- Updated Stackdriver exporter to use a new batch API.
+
+
+## v0.2.6 Alpha
+
+Released 2020-02-18
+
+### Self-Observability
+- Updated metrics prefix to `otelcol` and expose command line argument to modify the prefix value.
+- Batch dropped span now emits zero when no spans are dropped.
+
+### Processors
+- Extended Span processor to have include/exclude span logic.
+- Ability to choose strict or regexp matching for include/exclude filters.
+
+### Receivers and Exporters
+- Added Carbon receiver and exporter.
+- Added Wavefront receiver.
+
+
+## v0.0.5 Alpha
+
+Released 2020-01-30
+
+- Regexp-based filtering of span names.
+- Ability to extract attributes from span names and rename span.
+- File exporter for debugging.
+- Span processor is now enabled by default.
+
+## v0.0.1 Alpha
+
+Released 2020-01-11
+
+First release of OpenTelemetry Collector Contrib.
+
+
+[v0.3.0]: https://github.com/open-telemetry/opentelemetry-collector-contrib/compare/v0.2.8...v0.3.0
+[v0.2.8]: https://github.com/open-telemetry/opentelemetry-collector-contrib/compare/v0.2.7...v0.2.8
+[v0.2.7]: https://github.com/open-telemetry/opentelemetry-collector-contrib/compare/v0.2.6...v0.2.7
+[v0.2.6]: https://github.com/open-telemetry/opentelemetry-collector-contrib/compare/v0.0.5...v0.2.6
+[v0.0.5]: https://github.com/open-telemetry/opentelemetry-collector-contrib/compare/v0.0.1...v0.0.5
+[v0.0.1]: https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/v0.0.1