diff --git a/CHANGELOG.md b/CHANGELOG.md
index c5c0d3e36..4b39e0872 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Wikimedia Commons for Android
 
+## v1.12
+- Further bug fixes for Polish language
+- Added Javadocs
+
 ## v1.11
 - Bugfix for Polish language crash
 
diff --git a/commons/AndroidManifest.xml b/commons/AndroidManifest.xml
index 01e5015c1..f14237160 100644
--- a/commons/AndroidManifest.xml
+++ b/commons/AndroidManifest.xml
@@ -1,7 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="fr.free.nrw.commons"
-    android:versionCode="27"
-    android:versionName="1.11" >
+    android:versionCode="28"
+    android:versionName="1.12" >
 
     <uses-sdk
         android:minSdkVersion="9"
diff --git a/commons/src/main/java/fr/free/nrw/commons/upload/MwVolleyApi.java b/commons/src/main/java/fr/free/nrw/commons/upload/MwVolleyApi.java
index 000bae024..3d7489fc4 100644
--- a/commons/src/main/java/fr/free/nrw/commons/upload/MwVolleyApi.java
+++ b/commons/src/main/java/fr/free/nrw/commons/upload/MwVolleyApi.java
@@ -24,7 +24,9 @@ import java.util.List;
 import java.util.Set;
 
 /**
- *
+ * Uses the Volley library to implement asynchronous calls to the Commons MediaWiki API to match
+ * GPS coordinates with nearby Commons categories. Parses the results using GSON to obtain a list
+ * of relevant categories.
  */
 public class MwVolleyApi {