I have recently submitted a paper to a journal. The reviewer came back with some very constructive feedback and requested some additional results to be added to the paper. Eventually, the paper was accepted but it has not appeared yet. So, I have three versions of the paper:

- Version 1: This is the version that I submitted to the journal initially.
- Version 2: I have added additional results based on the referee's feedback.
- Version 3: This one was made by the journal. It is basically version 2 formatted using the Journal's template. 

My understanding is that I **cannot** publish version 3 on Arxiv since I signed the publishing agreement, and I **can** publish version 1 freely. My question is: Can I publish version 2 on Arxiv?