Iterate on v0.46 release notes

release notes/v0.46.0.md

@@ -7,6 +7,7 @@ k6 `v0.46` is here 🎉! This release includes:
 - Cloud output v2
 - And many UX improvements, bug fixes, and internal improvements
 
+## Breaking Changes
 
 ### Browser
 
@@ -51,6 +52,10 @@ export default async function () {
 }
 ```
 
+### Deprecations
+
+- [#3121](https://github.com/grafana/k6/issues/3121) deprecates the `loadimpact/k6` docker image. We intend to keep supporting it for at most a year from now, but we recommend switching to the `grafana/k6` image as soon as possible.
+
 
 ## New features
 
@@ -162,6 +167,7 @@ The full list of related PRs: [#3104](https://github.com/grafana/k6/pull/3104),
 
 ## Maintenance and internal improvements
 
+- [#3112](https://github.com/grafana/k6/pull/3112) Adds an event system for core JS modules.
 - [#3170](https://github.com/grafana/k6/pull/3170) Upgraded the version of gRPC k6 demo service dependency to address a security vulnerability ([CVE-2023-32731]).
 - [#3211](https://github.com/grafana/k6/pull/3211) Updates the experimental gRPC module version used by k6.
 - [#3210](https://github.com/grafana/k6/pull/3210) Updates the xk6-output-prometheus-remote version used by k6.