diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2f5b153c4bd..e7a43160ae9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,6 +24,7 @@ Updates:
 - Clean up api-propagators.md, by extending documentation and removing redundant sections ([#577](https://github.com/open-telemetry/opentelemetry-specification/pull/577))
 - Rename HTTPText propagator to TextMap ([#793](https://github.com/open-telemetry/opentelemetry-specification/pull/793))
 - Rename ParentOrElse sampler to ParentBased and add multiple delegate samplers ([#610](https://github.com/open-telemetry/opentelemetry-specification/pull/610))
+- Rename ProbabilitySampler to TraceIdRatioBasedSampler and add requirements ([#611](https://github.com/open-telemetry/opentelemetry-specification/pull/611))
 
 ## v0.6.0 (07-01-2020)