diff --git a/CodeReleaseVersion b/CodeReleaseVersion
index 5b53f91..636ae80 100644
--- a/CodeReleaseVersion
+++ b/CodeReleaseVersion
@@ -1 +1 @@
-2021-05-26
+2021-05-27
diff --git a/README.md b/README.md
index fe7ad16..e003593 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,9 @@ https://github.com/ukncsc/MailCheck.Public.Spf
 - **TlsRpt** the Mail Check TlsRpt Microservice is responsible for polling TlsRpt records for a domain
 https://github.com/ukncsc/MailCheck.Public.TlsRpt
 
+- **MtaSts** the Mail Check MtaSts Microservice is responsible for polling MtaSts records for a domain
+https://github.com/ukncsc/MailCheck.Public.MtaSts
+
 
 ## Contributing
 If you'd like to contribute please follow these steps:
diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 8a60a7f..56cd3fe 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -1,14 +1,23 @@
 # Release Notes
 
 
+## What's new in release 2021-05-27
+
+### :rocket: Improvements
+
+- MTA-STS support
+
+### :bug: Fixes
+
+- 
+
+
 ## What's new in release 2021-05-26
 
 ### :rocket: Improvements
 
 - TLS-RPT report processing
 
-- MTA-STS support
-
 - Integrate Mail Check advisories with MyNCSC findings
 
 - Group ARC forwarded emails together