SunSoft WorkShop, which of these versions have OpenStep?

[shogo2040]

Which version of Sun Workshop includes the Solaris OpenStep Development Environment?  I am thinking its Sun Workshop 3.0 based on the 1997 year listed on this Wikipedia page:

https://en.wikipedia.org/wiki/Oracle_Developer_Studio#History

[isoriano]

.. the Development Kit for OpenStep/Solaris never left the Lighthouse/SunSoft building .. I talked to the LubuMagic developer who could have been an option, looks like he "had" it .. but decades later lost it.