feat(docs): update ATLAS ODEO February 2025 release announcement

Author: zlmarshall

data/docs/atlas-open-data-for-education-outreach-release-2025-beta/atlas-open-data-for-education-outreach-release-2025-beta.json

@@ -5,7 +5,7 @@
       "content": "atlas-open-data-for-education-outreach-release-2025-beta.md",
       "format": "md"
     },
-    "date_published": "2025-04-11",
+    "date_published": "2025-07-03",
     "experiment": [
       "ATLAS"
     ],

data/docs/atlas-open-data-for-education-outreach-release-2025-beta/atlas-open-data-for-education-outreach-release-2025-beta.md

@@ -1 +1,32 @@
-FIXME here comes the release announcement body in Markdown.
+**A major update for the 13 TeV ATLAS Education and Outreach Open Data**
+
+The ATLAS Collaboration has just launched a new release of open data designed
+to empower education, outreach and citizen science. Building on a commitment to
+open access, the new 2025 Open Data for Education and Outreach (beta) release
+offers a significant upgrade in usability, scale and technical support.
+
+This release simplifies and expands on previous open data releases with a
+dedicated, open-source framework, now publicly available, alongside enhanced
+tools and documentation. It includes:
+
+- Guided workbooks and code to help users analyse real LHC collision data
+- Modules to build computing skills, perfect for students and independent
+  learners
+- Support for educators to create custom courses and projects using real LHC
+  data
+
+If you’ve used ATLAS Open Data before – this is also a big refresh. With
+increased statistical power and updated tools, you can pursue all-new physics
+analyses and revisit previous ones with enhanced precision.
+
+So whether you’re a student, teacher, citizen scientist or just curious about
+the Universe – dive into ATLAS Open Data for Education. Explore real LHC
+collisions, develop valuable computing skills and uncover the properties of
+fundamental particles for yourself.
+
+The data are all available now on the [CERN Open Data Portal](/record/93910).
+You can also [explore the documentation of the new
+release](https://opendata.atlas.cern/docs/data/for_education/13TeV25_details)
+or [visit the ATLAS Open Data Portal](https://opendata.atlas.cern) for more. We
+will be building on this beta release with additional data selections,
+analyses, and tools that will all be arriving soon!