Updating documentation with consistent or more recent dates?

For various reasons, my project's Design Submittal got put on hold in 2014 after most of the work effort was done and uploaded to LEED Online. The outstanding items included the completion of the energy model, EAp2/EAc1, and EAc6. These items have recently been completed. The older documentation has an April 2014 date. The more recent documentation is dated 2016. If the 2014 documentation is still valid to demonstrate compliance with the various credits, is it acceptable to still use it? Or do I need to have the whole team update the documentation to a more consistent, recent date? We are so close to being ready to submit. I'd hate to have to spend the time replacing documentation, if it is not required. Thanks!