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[release/v1.4] Add v1.4 breaking changes to release notes #1754

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17 changes: 17 additions & 0 deletions docs/sources/release-notes.md
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,23 @@ For a complete list of changes to {{< param "FULL_PRODUCT_NAME" >}}, with links

[Changelog]: https://github.com/grafana/alloy/blob/main/CHANGELOG.md

## v1.4

### Breaking change: Some debug metrics for `otelcol` components have changed

For example, `otelcol.exporter.otlp`'s `exporter_sent_spans_ratio_total` metric is now `otelcol_exporter_sent_spans_total`.
You may need to change your dashboard and alert settings to reference the new metrics.
Refer to each component's documentation page for more information.

### Breaking change: The `convert_sum_to_gauge` and `convert_gauge_to_sum` functions in `otelcol.processor.transform` change context

The `convert_sum_to_gauge` and `convert_gauge_to_sum` functions must now be used in the `metric` context rather than in the `datapoint` context.
This is due to a [change upstream](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/34567).

### Breaking change: Renamed metrics in `beyla.ebpf`

`process.cpu.state` is renamed to `cpu.mode` and `beyla_build_info` is renamed to `beyla_internal_build_info`.

## v1.3

### Breaking change: `remotecfg` block updated argument name from `metadata` to `attributes`
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