Update CHANGELOG.md

CHANGELOG.md

@@ -4,6 +4,7 @@
 * [CHANGE] slo: include request cancellations within SLO [#4355] (https://github.com/grafana/tempo/pull/4355) (@electron0zero)
   request cancellations are exposed under `result` label in `tempo_query_frontend_queries_total` and `tempo_query_frontend_queries_within_slo_total` with `completed` or `canceled` values to differentiate between completed and canceled requests.
 * [CHANGE] update default config values to better align with production workloads [#4340](https://github.com/grafana/tempo/pull/4340) (@electron0zero)
+* [CHANGE] Add query-frontend limit for max length of query expression [##4397](https://github.com/grafana/tempo/pull/4397) (@electron0zero)
 * [CHANGE] fix deprecation warning by switching to DoBatchWithOptions [#4343](https://github.com/grafana/tempo/pull/4343) (@dastrobu)
 * [CHANGE] **BREAKING CHANGE** The Tempo serverless is now deprecated and will be removed in an upcoming release [#4017](https://github.com/grafana/tempo/pull/4017/) @electron0zero
 * [CHANGE] **BREAKING CHANGE** Change the AWS Lambda serverless build tooling output from "main" to "bootstrap". Refer to https://aws.amazon.com/blogs/compute/migrating-aws-lambda-functions-from-the-go1-x-runtime-to-the-custom-runtime-on-amazon-linux-2/ for migration steps [#3852](https://github.com/grafana/tempo/pull/3852) (@zatlodan)