misc: v0.9.0 changelog

CHANGELOG.md

@@ -1,5 +1,18 @@
 # Changelog
 
+## v0.9.0
+
+- feat: Initial tracing and performance monitoring support (#285)
+- doc: Revamp sentryhttp documentation (#304)
+- fix: Hub.PopScope never empties the scope stack (#300)
+- ref: Report Event.Timestamp in local time (#299)
+- ref: Report Breadcrumb.Timestamp in local time (#299)
+
+_NOTE:_
+This version introduces support for [Sentry's Performance Monitoring](https://docs.sentry.io/platforms/go/performance/).
+The new tracing capabilities are beta, and we plan to expand them on future versions. Feedback is welcome, please open new issues on GitHub.
+The `sentryhttp` package got better API docs, an [updated usage example](https://github.com/getsentry/sentry-go/tree/master/example/http) and support for creating automatic transactions as part of Performance Monitoring.
+
 ## v0.8.0
 
 - build: Bump required version of Iris (#296)