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+- Track billed status of a Delivery Note (DN) or Purchase Receipt (PR)
+	- Added new status **To Bill** and **Completed** in Delivery Note and Purchase Receipt
+	- The system looks for Invoices directly created from Delivery Note / Purchase Receipt *(Workflow: Order -> DN/PR -> Invoice)* and allocates these amounts directly to the DN/PR
+	- Next, it looks for Invoices not created from Delivery Note / Purchase Receipt, but from an Order *(Workflow: Order -> Invoice, Order -> DN/PR)* and the DN/PR is selected based on FIFO for allocating the billed amount
+- In Stock Entry, re-calculate Additional Costs and Amount on changing Quantity or Rate
+- Chart of Accounts for Singapore
diff --git a/erpnext/change_log/v6/v6_18_0.md b/erpnext/change_log/v6/v6_18_0.md
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+- Added Additional Cost field in Time Log and cleaned up layout
+- Grouped contextual buttons in sales & purchase cycle
+- Rounded Total and Change in POS based on smallest circulating currency fraction value
+- Now items can be returned in any warehouse
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