Update README.md

README.md

@@ -5,10 +5,10 @@ We are OS-Copilot Team from Shanghai AI Lab and HKU
 - [ScienceBoard](https://arxiv.org/abs/2505.19897) (ICLR'26) <br>
 📘 ScienceBoard: Evaluating Multimodal Autonomous Agents in Realistic Scientific Workflows
 
-- [OS-Symphony](https://arxiv.org/pdf/2601.07779) (Preprint) <br>
+- [OS-Symphony](https://arxiv.org/pdf/2601.07779) (ACL'26) <br>
 📘 OS-Symphony: A Holistic Framework for Robust and Generalist Computer-Using Agents
 
-- [OS-Sentinel](https://arxiv.org/abs/2510.24411) (Preprint) <br>
+- [OS-Sentinel](https://arxiv.org/abs/2510.24411) (ACL'26) <br>
 📘 OS-Sentinel: Towards Safety-Enhanced Mobile GUI Agents via Hybrid Validation in Realistic Workflows
 
 - [OS-Genesis](https://arxiv.org/abs/2412.19723) (ACL'25) <br>