From 05758f45647861f03cae4e0e9cf926354626e809 Mon Sep 17 00:00:00 2001
From: Mathew Davies <thepixeldeveloper@icloud.com>
Date: Mon, 19 Jun 2017 10:07:58 +0100
Subject: [PATCH] Documented changes in UPGRADE.md

---
 UPGRADE.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/UPGRADE.md b/UPGRADE.md
index 3592fe5b6..8aba870c6 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -1,3 +1,17 @@
+# Upgrade to 2.6
+
+## Minor BC BREAK: removed `Doctrine\ORM\Query\Parser#isInternalFunction`
+
+Method `Doctrine\ORM\Query\Parser#isInternalFunction` was removed because 
+the distinction between internal function and user defined DQL was removed.
+[#6500](https://github.com/doctrine/doctrine2/pull/6500)
+
+## Minor BC BREAK: removed `Doctrine\ORM\ORMException#overwriteInternalDQLFunctionNotAllowed`
+
+Method `Doctrine\ORM\Query\Parser#overwriteInternalDQLFunctionNotAllowed` was 
+removed because of the choice to allow users to overwrite internal functions, ie
+`AVG`, `SUM`, `COUNT`, `MIN` and `MAX`. [#6500](https://github.com/doctrine/doctrine2/pull/6500)
+
 # Upgrade to 2.5
 
 ## Minor BC BREAK: removed `Doctrine\ORM\Query\SqlWalker#walkCaseExpression()`