Fill in Swift 6 beta 1 date

amartini51 · amartini51 · commit 26bb01cfb099 · 2024-06-04T11:21:45.000-07:00
diff --git a/TSPL.docc/RevisionHistory/RevisionHistory.md b/TSPL.docc/RevisionHistory/RevisionHistory.md
@@ -2,7 +2,7 @@
 
 Review the recent changes to this book.
 
-**XXX date XXX**
+**2024-06-10**
 
 - Updated for Swift 6.
 - Added the <doc:Attributes#preconcurrency> section
