Quick answer: Some of the funding lost in the 2011 Legislative session was restored in the 2013 session. Plus, the Legislature addressed the issue of projected student enrollment in their funding for next two school years (something not done in 2011). However, until the lawsuit brought by the ISD's against the State winds its way to the Texas Supreme Court, no real reform in the way Texas funds education will happen.
Texas Insider has a very informative overview of the budget in an interview with Senator Tommy Williams (R - The Woodlands).
To read budget statistics from the overview, and to hear the interview, see this link: