Move client key and certificate file support entry to Unreleased in C…

…HANGELOG.md

CHANGELOG.md

@@ -20,6 +20,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#4103](https://github.com/open-telemetry/opentelemetry-python/pull/4103))
 - Update semantic conventions to version 1.27.0
   ([#4104](https://github.com/open-telemetry/opentelemetry-python/pull/4104))
+- Implement Client Key and Certificate File Support for All OTLP Exporters
+  ([#4115](https://github.com/open-telemetry/opentelemetry-python/pull/4115))
 
 ## Version 1.26.0/0.47b0 (2024-07-25)
 
@@ -199,8 +201,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#3524](https://github.com/open-telemetry/opentelemetry-python/pull/3524))
 - Handle `taskName` `logrecord` attribute
   ([#3557](https://github.com/open-telemetry/opentelemetry-python/pull/3557))
-- Implement client key file and client certificate file for all OTLP exporters
-  ([#3590](https://github.com/open-telemetry/opentelemetry-python/pull/3590))
 
 ## Version 1.21.0/0.42b0 (2023-11-01)
 

exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/exporter.py

@@ -141,8 +141,10 @@ def _load_credentials(
             private_key=private_key,
             certificate_chain=certificate_chain,
         )
-    except FileNotFoundError:
-        logger.exception("Failed to read credential file")
+    except FileNotFoundError as e:
+        logger.exception(
+            f"Failed to read credential file: {e.filename}. Please check if the file exists and is accessible."
+        )
         return None