Add minor BC-break notes on output walkers in paginator

As explained in #7863 (comment).
doctrine · Nov 16, 2019 · 57496e3 · 57496e3
1 parent 797bfc5
commit 57496e3
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/UPGRADE.md b/UPGRADE.md
@@ -1,5 +1,10 @@
 # Upgrade to 2.7
 
+## Minor BC BREAK: paginator output walkers aren't be called anymore on sub-queries for queries without max results  
+
+To optimize DB interaction, `Doctrine\ORM\Tools\Pagination\Paginator` no longer fetches identifiers to be able to
+perform the pagination with join collections when max results isn't set in the query.
+
 ## Deprecated code generators and related console commands
 
 These console commands have been deprecated: