changelog: Cloud output entry

release notes/v0.46.0.md

@@ -82,9 +82,11 @@ if (__ITER === 0) {
 
 Thanks @chrismoran-mica for contribution 🙇‍♂️.
 
-### `<big_feature_1>` `#pr`
+### A better Cloud output [#3117](https://github.com/grafana/k6/issues/3117)
 
-_what, why, and what this means for the user_
+After years of great service we decided to refresh the k6 Cloud output introducing a more efficient end-to-end solution for ingesting the generated tests' metrics.
+The new output reduces the load generators' used resources for tests that produce a big amount of metrics. There aren't functional changes, the user experience is expected to be the same as before.
+At the moment this is not yet the default Cloud output for the test runs executed from local machines (`k6 run -o cloud`), but it is expected to be transparently enabled in the upcoming weeks.
 
 ### `<big_feature_n>` `#pr`