- may need to decide on a different tag in the future...

coding/patterns/HashTable.md

 <!-- --- title: OpenFOAM C++ Coding Patterns (HashTable) -->
 
 [Back to _coding patterns_](/coding/patterns/patterns)
+
 ***We are happy to incorporate content from volunteers!!***
 
 
@@ -8,6 +9,8 @@
 
 ### HashSet
 
+\since 1706
+
 Use range-for to dereference the HashSet iterators directly:
 ```
 labelHashSet ids ...;
@@ -36,6 +39,8 @@ forAllConstIter(labelHashSet, ids, iter)
 
 ### HashTable, Map
 
+\since 1706
+
 Use `lookup()` to provide default values (const-access) and the `operator()`
 to create new zero-initialized entries if required:
 ```