update change log

Author: mohammadVatandoost

opentelemetry-sdk/CHANGELOG.md

@@ -58,6 +58,7 @@ Released 2025-Mar-21
 
   Custom exporters will need to internally synchronize any mutable state, if applicable.
 
+- **Breaking** The `shutdown_with_timeout` method is added to MetricExporter trait. This is breaking change for a custom MetricExporter.
 - Bug Fix: `BatchLogProcessor` now correctly calls `shutdown` on the exporter
   when its `shutdown` is invoked.
 

opentelemetry-sdk/src/metrics/exporter.rs

@@ -31,7 +31,9 @@ pub trait PushMetricExporter: Send + Sync + 'static {
     fn shutdown_with_timeout(&self, timeout: Duration) -> OTelSdkResult;
 
     /// Shutdown with the default timeout of 5 seconds.
-    fn shutdown(&self) -> OTelSdkResult;
+    fn shutdown(&self) -> OTelSdkResult {
+        self.shutdown_with_timeout(Duration::from_secs(5))
+    }
 
     /// Access the [Temporality] of the MetricExporter.
     fn temporality(&self) -> Temporality;