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v0.9.0 changelog

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License: MIT
Signed-off-by: Adrian Lanzafame <adrianlanzafame92@gmail.com>
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CHANGELOG.md
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# IPFS Cluster Changelog
### v0.9.0 - 2019-02-08
#### Summary
IPFS Cluster version 0.9.0 comes with one big new feature, [OpenCensus](https://opencensus.io) support! This allows for the collection of distributed traces and metrics from the IPFS Cluster application as well as supporting libraries. Currently, we support the use of [Jaeger]() as the tracing backend and [Prometheus]() as the metrics backend. Support for other [OpenCensus backends](https://opencensus.io/exporters/) will be added as requested by the community.
#### List of changes
##### Features
* Integrate [OpenCensus](https://opencensus.io) tracing and metrics into IPFS Cluster codebase [ipfs/ipfs-cluster#486](https://github.com/ipfs/ipfs-cluster/issues/486).
##### Fixes
* Fixing of `ToJSON` [ipfs/ipfs-cluster#658](https://github.com/ipfs/ipfs-cluster/issues/658) [ipfs/ipfs-cluster#659](https://github.com/ipfs/ipfs-cluster/issues/659).
##### Deprecated
* The snap distribution of IPFS Cluster has been removed [ipfs/ipfs-cluster#593](https://github.com/ipfs/ipfs-cluster/issues/593) [ipfs/ipfs-cluster#649](https://github.com/ipfs/ipfs-cluster/issues/649).
#### Upgrading notices
##### Configuration changes
No changes to the existing configuration.
There are two new configuration sections with this release:
###### `tracing` section
The `tracing` section configures the use of Jaeger as a tracing backend.
```js
"tracing": {
"enable_tracing": false,
"jaeger_agent_endpoint": "/ip4/0.0.0.0/udp/6831",
"sampling_prob": 0.3,
"service_name": "cluster-daemon"
}
```
###### `metrics` section
The `metrics` section configures the use of Prometheus as a metrics collector.
```js
"metrics": {
"enable_stats": false,
"prometheus_endpoint": "/ip4/0.0.0.0/tcp/8888",
"reporting_interval": "2s"
}
```
##### REST API
No changes to the REST API.
##### Go APIs
No changes to the Go APIs.
##### Other
No other things.
---
### v0.8.0 - 2019-01-16
#### Summary
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* Fix `ipfs-cluster-ctl` usage with HTTPs and `/dns*` hostnames | [ipfs/ipfs-cluster#626](https://github.com/ipfs/ipfs-cluster/issues/626)
* Minor fixes in sharness | [ipfs/ipfs-cluster#641](https://github.com/ipfs/ipfs-cluster/issues/641) | [ipfs/ipfs-cluster#643](https://github.com/ipfs/ipfs-cluster/issues/643)
* Fix error handling when parsing the configuration | [ipfs/ipfs-cluster#642](https://github.com/ipfs/ipfs-cluster/issues/642)
#### Upgrading notices
@ -176,7 +243,7 @@ Note that the REST API response format for the `/add` endpoint has changed. Thus
* Support overwriting configuration values in the `cluster` section with environmental values | [ipfs/ipfs-cluster#575](https://github.com/ipfs/ipfs-cluster/issues/575) | [ipfs/ipfs-cluster#596](https://github.com/ipfs/ipfs-cluster/issues/596)
* Set snaps to `classic` confinement mode and revert it since approval never arrived | [ipfs/ipfs-cluster#579](https://github.com/ipfs/ipfs-cluster/issues/579) | [ipfs/ipfs-cluster#594](https://github.com/ipfs/ipfs-cluster/issues/594)
* Use Go's reverse proxy library in the proxy endpoint | [ipfs/ipfs-cluster#570](https://github.com/ipfs/ipfs-cluster/issues/570) | [ipfs/ipfs-cluster#605](https://github.com/ipfs/ipfs-cluster/issues/605)
##### Bug fixes
@ -379,7 +446,7 @@ whether an item is pinning (a request to ipfs is ongoing) vs. pin-queued (waitin
* Broadcasting of monitoring metrics using PubSub: we have added a new `monitor` implementation that uses PubSub (rather than RPC broadcasting). With the upcoming improvements to PubSub this means that we can do efficient broadcasting of metrics while at the same time not requiring peers to have RPC permissions, which is preparing the ground for collaborative clusters.
* We have launched the IPFS Cluster website: https://cluster.ipfs.io . We moved most of the documentation over there, expanded it and updated it.
#### List of changes
#### List of changes
##### Features