In a previous post, I discussed one of the important changes to the Federal Rules of Civil Procedure that took effect on December 1, 2010 regarding the discoverability of Attorney-Expert Communications under FRCP 26. The topic of this post covers another important change to Rule 26 that took place on December 1, the new requirement of summary disclosures for non-testifying experts. It also covers a recent ruling by Southern Districts of Ohio, which clarifies whether the new changes to Rule 26 apply retroactively.