update latest news

Author: QiLi111

index.md

@@ -39,7 +39,8 @@ The TUS-REC2025 challenge is an open call event, accepting new submissions after
 | :-----------------------------| :----------------------------------------------- |
 | Apr. 01, 2025                   | Challenge Websites Opening/Registration Opens                               |
 | Apr. 28, 2025                   | Training Data/Baseline Code Release                            |
-| Jun. 23, 2025                  | Validation Data/Submission Code Release/Submission Starts                          |
+| Jun. 23, 2025                  | Validation Data/Submission Code Release                          |
+| Jul. 07, 2025                  | Submission Starts                               |
 | Aug. 18, 2025                  | Submission Closes                               |
 |  Sep. 01, 2025                 | Winners Announcement                               |
 |  Sep. 23, 2025                 | TUS-REC2025 Challenge Events at MICCAI 2025     |

latest_news.md

@@ -4,6 +4,13 @@ layout: default
 nav_order: 2
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+><span style="font-size: 12px; color: gray; margin-top: -15px;;">23/06/2025</span>
+>### ✅ Validation Dataset and Submission Guideline Released 
+>Participants can now access the official <a href="https://github-pages.ucl.ac.uk/tus-rec-challenge/submission.html" target="_blank">submission guideline</a>. <a href="https://github.com/QiLi111/TUS-REC2025-Challenge_baseline/tree/main/submission#instructions-for-docker" target="_blank">A baseline Docker image</a> is provided as a starting point, along with the <a href="https://doi.org/10.5281/zenodo.15699958" target="_blank">validation dataset</a> for local testing and evaluation.
+
+
+---
+
 ><span style="font-size: 12px; color: gray; margin-top: -15px;;">28/04/2025</span>
 >### 📢 Training Dataset and Baseline Code Released 
 >Participants can now access the <a href="https://zenodo.org/records/15224704" target="_blank">training dataset</a> and <a href="https://github.com/QiLi111/TUS-REC2025-Challenge_baseline" target="_blank">baseline code</a> for model development.