Update README.md

README.md

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 ## CodeSage-Large-v2
 
-### [Blogpost]
-Please check out our [blogpost](https://code-representation-learning.github.io/codesage-v2.html) for more details.
+### Updates
+* 1. <span style="color:blue">We are excited to announce the release of the CodeSage V2 model family with largely improved performance!</span> <strong>Please check out our [blogpost](https://code-representation-learning.github.io/codesage-v2.html) for more details</strong>.
+* 2. In addition to retrieval performance boost, V2 models also support flexible embedding sizes (thanks to Matryoshka Representation Learning (MRL)).
+* 3. You can access CodeSage v2 models through both HF and SentenceTransformer.
 
 ### Model description
 CodeSage is a family of open code embedding models with an encoder architecture that supports a wide range of source code understanding tasks. It was initially introduced in the paper: