[change log]
diff --git a/erpnext/change_log/v6/v6_21_0.md b/erpnext/change_log/v6/v6_21_0.md
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+- Customer history (Quototations, Sales Invoices etc) can been seen in Customer timeline (based on permissions)
+- Default Warehouse not mandatory in Item
+- Use **Pricing Rule** of template in case of Item variant, if not Pricing Rule for Item variant is defined.