-----------------------
+2017-04-15 Uwe Stöhr <uwestoehr@web.de>
+ * Format incremented to 540: support for rotated float placements
+ - no new LFUN or buffer parameters
+
+2017-04-08 Uwe Stöhr <uwestoehr@web.de>
+ * Format incremented to 539: support for \baselineskip.
+ - new length unit BLS
+
+2017-04-05 Uwe Stöhr <uwestoehr@web.de>
+ * Format incremented to 538: support for document class option "fleqn"
+ and for length \mathindent.
+ New buffer parameters
+ - \is_math_indent
+ - \math_indentation
+
2017-04-04 Uwe Stöhr <uwestoehr@web.de>
* Format incremented to 537: support for \xout.
Character style via ulem's \xout. New