I'm working on a new power project in which we are contractually required to design per B31.1-2010.

I'm currently running CAESAR Version 5.20, as my company won't be upgrading to Version 5.30 for a couple months.

However, the different versions of CAESAR reference the following versions of B31.1:
Version 5.20 = B31.1 (2007)
Version 5.30 = B31.1 (2007 w/2008 Addendum)

Considering I'm running V5.20, I'm being tasked with reviewing the "Summary of Changes" for the newer B31.1 releases (2007 w/2008 Addendum & 2010) and adjusting the inputs as necesary for any changes required per these revised versions of the Power Piping code.

My main area of focus will be any changes to allowables on seamless piping that we often use (A106B, P11, P22, P91, etc). I will also be focusing on any changes regarding Stress Intensification Factors.

My question: Has anyone else already done the leg work on this? Are there any major changes that i should be aware of between versions of B31.1?