There has been a change in the way attr_latex is used in the new exporter. Nicolas has given the details at http://thread.gmane.org/gmane.emacs.orgmode/62766.
Would somebody have time to elaborate with an example how to use it for tabularx/tabulary environment. In case of old exporter, I used to have something like this: #+ATTR_LATEX: tabulary width=\textwidth align=l|rRRRR How should this change in the new exporter? Vikas PS: Been wondering, Nicolas Goaziou must be a super human!
