diff --git a/.pubnub.yml b/.pubnub.yml
index 736d2d9c1..a23fccff4 100644
--- a/.pubnub.yml
+++ b/.pubnub.yml
@@ -1,6 +1,15 @@
 ---
 changelog:
-
+  -
+    changes:
+      -
+        text: "Add telemetry (latency) for all existing operation types."
+        type: feature
+      -
+        text: "Replace `cbor-sync` module with `cbor-js` for client implementation for web to fix compatibility with Salesforce Lightning Web Components."
+        type: bug
+    date: 2020-03-18
+    version: v4.27.4
   -
     changes:
       -
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b137bb0de..5b32a11fa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,10 @@
+## [v4.27.4](https://github.com/pubnub/javascript/releases/tag/v4.27.4)
+March-18-2020
 
+[Full Changelog](https://github.com/pubnub/javascript/compare/v4.27.3...v4.27.4)
+
+- 🌟️ Add telemetry (latency) for all existing operation types. 
+- 🐛 Replace `cbor-sync` module with `cbor-js` for client implementation for web to fix compatibility with Salesforce Lightning Web Components. 
 
 ## [v4.27.3](https://github.com/pubnub/javascript/tree/v4.27.3)
   January-06-2020