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Since ConfiForms app version 2.x we publish release notes here 

Version 2.21.2 (dev)

• Improving support in experimental API for reading excel files with blank data in cells - Using Excel files as sources for ConfiForms fields
• Ensuring that Smart multi-row fields configurations are valid. No nesting of smart multi-row fields is currently supported

Version 2.21.1

• Added support for smart fields used in Smart multi-row field
• Fixed issue with incorrect (success) message shown when multiple registrations control macros are on the page
• Fixed issue with class loading conflict (affects sending emails with attachments from ConfiForms)

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