Update README.md (#3410)

Author: jshackell-sfdc

releasenotes/README.md

@@ -25,15 +25,19 @@ Additional documentation:
 * [Salesforce CLI Plugin Developer Guide](https://github.com/salesforcecli/cli/wiki/Quick-Introduction-to-Developing-sf-Plugins)
 * [Salesforce CLI Setup Guide](https://developer.salesforce.com/docs/atlas.en-us.sfdx_setup.meta/sfdx_setup/sfdx_setup_intro.htm)
 
-## 2.108.6 (Oct 1, 2025) [stable-rc]
+## 2.109.6 (Oct 8, 2025) [stable-rc]
 
 These changes are in the Salesforce CLI release candidate. We plan to include these changes in next week's official release. This list isn't final and is subject to change.
 
 ------------
 
+* FIX: We fixed some under-the-hood bugs.
+
+## 2.108.6 (Oct 1, 2025) [stable]
+
 * FIX: Salesforce DX projects now support the TransactionProcessingType [metadata type](https://github.com/forcedotcom/source-deploy-retrieve/blob/main/src/registry/metadataRegistry.json). 
 
-## 2.107.6 (Sept 24, 2025) [stable]
+## 2.107.6 (Sept 24, 2025)
 
 * NEW: (Beta) Run tests for multiple Salesforce features, such as Apex classes and Flows, in a single and unified way with these new commands: