Update changelog

Signed-off-by: owent <admin@owent.net>
open-telemetry · Apr 28, 2022 · 090780a · 090780a
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commit 090780a
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -16,6 +16,8 @@ Increment the:
 ## [Unreleased]
 
 * [EXPORTER] OTLP http exporter allow concurrency session ([#1209](https://github.com/open-telemetry/opentelemetry-cpp/pull/1209))
+* [EXT] `curl::HttpClient` use `curl_multi_handle` instead of creating a thread
+  for every request and it's able to reuse connections now. ([#1317](https://github.com/open-telemetry/opentelemetry-cpp/pull/1317))
 
 ## [1.3.0] 2022-04-11