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diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 52e0e05a5a..c450adffe2 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,5 +1,15 @@
 ## Rails 3.2.12 (unreleased) ##
 
+*   Quote numeric values being compared to non-numeric columns. Otherwise,
+    in some database, the string column values will be coerced to a numeric
+    allowing 0, 0.0 or false to match any string starting with a non-digit.
+
+    Example:
+
+        App.where(apikey: 0) # => SELECT * FROM users WHERE apikey = '0'
+
+    *Dylan Smith*
+
 *   Don't update `column_defaults` when calling destructive methods on column with default value.
     Backport c517602.
     Fix #6115.