diff --git a/CHANGELOG.md b/CHANGELOG.md index 4b08d6cb..6e45130d 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -15,11 +15,12 @@ v0.104.0: - - -This release includes 2 very important breaking changes. - -1. The `otlpreceiver`, `jaegerreceiver` and `healthcheckextension` will now use `localhost` by default instead of `0.0.0.0`. This may break the receivers when the sender is not running on the same host, particularly in containerized environments like Kubernetes. If you depend on `0.0.0.0` disable the `component.UseLocalHostAsDefaultHost` feature gate or explicitly set the endpoint to `0.0.0.0`. - For more details, check out the [OTel blog post](https://opentelemetry.io/blog/2024/hardening-the-collector-one). -2. Expansion of BASH-style environment variables, such as `$FOO` will no longer be supported by default. If you depend on this syntax, disable the `confmap.unifyEnvVarExpansion` feature gate, but know that the feature will be removed in the future in favor of `${env:FOO}`. +> [!WARNING] +> This release includes two important breaking changes: +> +> 1. The `otlpreceiver`, `jaegerreceiver` and `healthcheckextension` will now use `localhost` by default instead of `0.0.0.0`. This may break the receivers when the sender is not running on the same host, particularly in containerized environments like Kubernetes. If you depend on `0.0.0.0` disable the `component.UseLocalHostAsDefaultHost` feature gate or explicitly set the endpoint to `0.0.0.0`. +> For more details, check out the [OTel blog post](https://opentelemetry.io/blog/2024/hardening-the-collector-one). +> 2. Expansion of BASH-style environment variables, such as `$FOO` will no longer be supported by default. If you depend on this syntax, disable the `confmap.unifyEnvVarExpansion` feature gate, but know that the feature will be removed in the future in favor of `${env:FOO}`.
Highlights from the upstream Collector changelog