OpenTelemetry Changelog - Plugin - unreleased

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Changelog

Added support for OpenTelemetry-formatted logs. #13291
Fixed an issue where migration failed when upgrading from versions earlier than 3.3.x to 3.7.x. #13391
Removed redundant deprecation warnings. #13220
Improved the accuracy of sampling decisions. #13275

The propagation module has been reworked. The new options allow better control over the configuration of tracing header propagation. #12670.

As part of the rework, the following parameters have been deprecated and will be removed in a future major version:
- config.header_type is deprecated, use config.propagation instead.
- config.batch_span_count is deprecated, use config.queue.max_batch_size instead.
- config.batch_flush_deplay is deprecated, use config.queue.max_coalescing_delay instead.
Fixed an OTEL sampling mode Lua panic bug, which happened when the http_response_header_for_traceid option was enabled. #12544

The tracing sampling rate can now be set via the config.sampling_rate property of the OpenTelemetry plugin instead of just being a global setting for Kong Gateway. #12054

Added support for Google Cloud Project’s X-Cloud-Trace-Context header
Added a new value to the parameter header_type, which allows Kong Gateway to inject Datadog headers into the headers of requests forwarding to the upstream.
Fixed an issue that resulted in traces with invalid parent IDs when balancer instrumentation was enabled. #11830

Added support for AWS X-Ray header propagation.

The field header_typenow accepts the aws value to handle this specific propagation header. #11075
The endpoint parameter is now referenceable, and can be stored as a secret in a vault.

The headers field is now marked as referenceable, which means it can be securely stored as a secret in a vault.