I get an error in ox-html.el with the latest org-mode when exporting tables to html :
Debugger entered--Lisp error: (void-variable top-row-p)
(cond (top-row-p "<tr class=\"tr-top\">") (bottom-row-p "<tr class=\"tr-bottom\">") (t (if (= (mod row-number 2) 1) "<tr class=\"tr-odd\">" "<tr class=\"tr-even\">")))
eval((cond (top-row-p "<tr class=\"tr-top\">") (bottom-row-p "<tr class=\"tr-bottom\">") (t (if (= (mod row-number 2) 1) "<tr class=\"tr-odd\">" "<tr class=\"tr-even\">"))) t)
org-html-table-row((table-row (:type standard :begin 1784 :end 1898 :contents-begin 1785 :contents-end 1897 :post-blank 0 :post-affiliated 1784 :parent ...))