Sentry has released several product updates in December, including the introduction of Spotlight, which brings telemetry to local development environments, allowing developers to see errors and other signals in real-time. The company also released new performance issues for regression and slow database queries, as well as an improved feedback widget with user installation capabilities. Additionally, Sentry upgraded its Android SDK, added support for Terraform, and launched a beta version of the improved feedback widget. These updates aim to improve developer productivity and debugging experiences.