diff --git a/skills/ms-ai-engineering/references/data-engineering/delta-lake-parquet-optimization.md b/skills/ms-ai-engineering/references/data-engineering/delta-lake-parquet-optimization.md
index 5d6568d..75cf81e 100644
--- a/skills/ms-ai-engineering/references/data-engineering/delta-lake-parquet-optimization.md
+++ b/skills/ms-ai-engineering/references/data-engineering/delta-lake-parquet-optimization.md
@@ -1,6 +1,6 @@
 # Delta Lake and Parquet Format Optimization
 
-**Last updated:** 2026-02
+**Last updated:** 2026-06-24
 **Status:** GA
 **Category:** Data Engineering for AI