From 40fec9ca3545f2475a95e597e7f5ccad34e8c698 Mon Sep 17 00:00:00 2001
From: Andreas Hocevar <andreas.hocevar@gmail.com>
Date: Sun, 22 Nov 2015 20:39:47 +0100
Subject: [PATCH] Mention behaviour change in upgrade notes

---
 changelog/upgrade-notes.md | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/changelog/upgrade-notes.md b/changelog/upgrade-notes.md
index 4f4e8f9090..6f3eb5575c 100644
--- a/changelog/upgrade-notes.md
+++ b/changelog/upgrade-notes.md
@@ -1,5 +1,18 @@
 ## Upgrade notes
 
+### v3.12.0
+
+#### `ol.Map#forEachFeatureAtPixel` changes
+
+The optional `layerFilter` function is now also called for unmanaged layers. To get the same behaviour as before, wrap your layer filter code in an if block like this:
+```js
+function layerFilter(layer) {
+  if (map.getLayers().getArray().indexOf(layer) !== -1) {
+    // existing layer filter code
+  }
+}
+```
+
 ### v3.11.0
 
 #### `ol.format.KML` changes