New features
1. API now supports a "stable ID" property for inventory registration rows.
Improvements
1. Editing a configuration parameter with the saveConfParameter call will create a "previous value" entry on every saving, not only once per day.
Fixes
1. Fixed two scenarios where a "$ off entire purchase" promotion did not give an accurate discount. (The totals before and after applying the promotion differed by $19.98, for example, instead of expected $20.)
2. Configuration parameter "langs" can now be edited with API call saveConfParameter.
3. Fixed: API call savePurchaseDocument now allows field "rounding" to be set to an empty value.
4. Fixed: when creating a new purchase invoice from a purchase order with savePurchaseDocument, and the purchase order rows have references to sales document rows, API now clones the links to the new purchase invoice.