Add change to changelog

open-telemetry · Mar 3, 2023 · d8b754a · d8b754a
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -8,6 +8,11 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [Unreleased]
 
+### Changed
+
+- Optimize memory allocation when creation a new `Set` using `NewSet` or `NewSetWithFiltered` in `go.opentelemetry.io/otel/attribute`. (#3832)
+- Optimize memory allocation when creation new metric instruments in `go.opentelemetry.io/otel/sdk/metric`. (#3832)
+
 ## [1.15.0-rc.1/0.38.0-rc.1] 2023-03-01
 
 This is a release candidate for the v1.15.0/v0.38.0 release.