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

Version 2.26.1

• Quickfix to address issues with incorrect rendering on multi-value fields when used through smart fields

Version 2.26

• Added support for rendering QR codes and barcodes directly in ConfiForms! See barcode and qrcode functions in Virtual functions
• Improved rendering and filtering performance of multi-value fields (we see a 10x times better performance improvements on certain (most) configurations, especially in filters)
• Implemented an earlier check for app level configuration that disables content indexing of ConfiForms forms (option in ConfiForms app configuration). 
• Improved support for retrieving _previousState values via ConfiForms Field macros for ALL field types
• Improved ConfiForms Filter Control to work on Persian dates (and interval fields) + fixed filtering by these field types

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