AWS Lambda Extensions allow customers to run code in parallel with their Lambda functions without being bound by the Lambda lifecycle, providing a new way for add-on and companion processes to coexist with Lambda functions. This release opens up various options for monitoring and analyzing AWS Lambda functions, making it easier for developers to gain insights into application performance. New Relic is integrating with the Extensions API, offering a simpler instrumentation experience and improved data reporting pathway for all current users of Full-Stack Observability. The integration makes it easier for developers to monitor their AWS Lambda functions without additional configuration or updates. With this release, AWS's built-in observability tools can be combined with New Relic to provide even more insight into function performance, enhancing what CloudWatch already reports. The value of using a hybrid strategy is highlighted by the importance of external observability tools in serverless environments, where debugging and analyzing problems are critical challenges.