Update Changelog

CHANGELOG.md

@@ -22,6 +22,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - Apply the value length limits to `Record` attributes in `go.opentelemetry.io/otel/sdk/log`. (#5230)
 - De-duplicate map attributes added to a `Record` in `go.opentelemetry.io/otel/sdk/log`. (#5230)
 - The `go.opentelemetry.io/otel/exporters/stdout/stdoutlog` exporter won't print `AttributeValueLengthLimit` and `AttributeCountLimit` fields now, instead it prints the `DroppedAttributes` field. (#5272)
+- Improved performance in the `Stringer` implementation of `go.opentelemetry.io/otel/baggage.Member` by reducing the number of allocations. (#5286)
 
 ## [1.26.0/0.48.0/0.2.0-alpha] 2024-04-24
 

baggage/baggage_test.go

@@ -1029,14 +1029,14 @@ func BenchmarkValueEscape(b *testing.B) {
 }
 
 func BenchmarkMemberString(b *testing.B) {
-	b.ReportAllocs()
 	alphabet := "abcdefghijklmnopqrstuvwxyz"
 	props := make([]Property, len(alphabet))
 	for i, r := range alphabet {
 		props[i] = Property{key: string(r)}
 	}
 	member, err := NewMember(alphabet, alphabet, props...)
 	require.NoError(b, err)
+	b.ReportAllocs()
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
 		_ = member.String()