diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 59b1a263c..3127bf4db 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -21,9 +21,9 @@ While fallback or downgrading is common practice it was never supported due to S
 
 ## Supported Core versions
 
-This release will be supported from ESP8266/Arduino library Core version **2.7.2** due to reported security and stability issues on previous Core version. This will also support gzipped binaries.
+This release will be supported from ESP8266/Arduino library Core version **2.7.2.1** due to reported security and stability issues on previous Core version. This will also support gzipped binaries.
 
-Although it might still compile on previous Core versions all support will be removed in the near future.
+Support of Core versions before 2.7.1 has been removed.
 
 ## Support of TLS
 
@@ -35,7 +35,7 @@ For initial configuration this release supports Webserver based **WifiManager**
 
 ## Provided Binary Downloads
 
-The following binary downloads have been compiled with ESP8266/Arduino library core version **2.7.2**.
+The following binary downloads have been compiled with ESP8266/Arduino library core version **2.7.2.1**.
 
 - **tasmota.bin** = The Tasmota version with most drivers. **RECOMMENDED RELEASE BINARY**
 - **tasmota-BG.bin** to **tasmota-TW.bin** = The Tasmota version in different languages.