On December 31, 2016, Law School access to the original Lexis.com interface will be phased out. Beginning on January 1, all Law School research will be through Lexis Advance, the interface which debuted in 2011. (Recently, Lexis.com was only accessible via a pull-down menu within Lexis Advance, but soon that option will be removed.) 100% of Lexis.com content has migrated into Advance, making the long-term upkeep of parallel research systems unnecessary. (Law firm and other commercial users of Lexis.com will have an additional 12 months to get up to speed on Lexis Advance while retaining access to Lexis.com.)
Lexis has created a "Lexis.com Migration Center" (login required) with handouts and training videos to help Lexis.com users learn more about the Advance interface and content. In particular, the PDF handout "The Research Tasks You Do Most: Here's How at Lexis Advance" is a handy primer to the most popular research needs. Additionally, the LexisNexis Legal YouTube channel for Lexis Advance Training on the Go contains more than 60 videos on various research topics.
Law school researchers are no strangers to changing legal research platforms: in July 2014, Westlaw's "Classic" site was phased out in favor of its WestlawNext interface (now known as Thomson Reuters Westlaw). Like the planned Lexis transition, Westlaw retired the Classic interface from law school users a full year before the sunset date for commercial subscribers: August 31, 2015.
For help with getting up to speed on Lexis Advance, Westlaw, or any other legal research resource, be sure to Ask a Librarian.