Update change log (#12019)

Author: trask

CHANGELOG.md

@@ -2,6 +2,42 @@
 
 ## Unreleased
 
+### 📈 Enhancements
+
+- Add span baggage processor
+  ([#11697](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/11697))
+- Improve tomcat version detection
+  ([#11936](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/11936))
+- Improve akka route handling with java dsl
+  ([#11926](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/11926))
+- Ignore Alibaba fastjson ASMClassLoader
+  ([#11954](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/11954))
+- Use `aws-lambda-java-serialization` library, which is available by default, while deserializing input and serializing output
+  ([#11868](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/11868))
+- Logback appender: map timestamp in nanoseconds if possible
+  ([#11974](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/11974))
+- Save ILoggingEvent.getArgumentArray() arguments from Logback
+  ([#11865](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/11865))
+- Update Java 17-based metrics to stable semconv
+  ([#11914](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/11914))
+- Add Pulsar Consumer metrics
+  ([#11891](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/11891))
+
+### 🛠️ Bug fixes
+
+- Fix missing throw statement in RestClientWrapper
+  ([#11893](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/11893))
+- Fix ClickHouse tracing when database name not included in connection string
+  ([#11852](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/11852))
+- Fix class cast exception, noop meter does not implement incubating API
+  ([#11934](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/11934))
+- Closing a kafka producer/consumer should not disable metrics from other consumers/producers
+  ([#11975](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/11975))
+- Fix ending span in Ktor plugin
+  ([#11726](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/11726))
+- Fix netty memory leak
+  ([#12003](https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/12003))
+
 ## Version 1.33.5 (2024-07-25)
 
 ### 📈 Enhancements