SCHEMA API 2.12.0 return Primary key as Array earlier in DF 2.10.0 return string for Primary key

Hello All,

we were using previous version of DreamFactory 2.10.0 in which SCHEMA API returns Primary key as sting but in 2.12.0 I can see that Primary key as an Array.

Earlier we are using 2.10.0 on window environment and now new instillation is done for version 2.12.0 on UBUNTU.

Is there any release notes about this change which can be refereed ?

Okay in release notes i can see this line under release of

Version 2.11.1 (Released January 25, 2018)

Initial support for multi-column constraints

Is this change related to this release ?