README.rdoc in writeexcel-1.0.8 vs README.rdoc in writeexcel-1.0.9

@@ -83,9 +83,12 @@
 * Worksheet.keep_leading_zeros()
   * ignore. if write 0001, use string such as write(1,2, '0001')
 * and ......
 
 == Recent Change
+v1.0.9
+* Fixed a bug: Can't modify frozen String (RuntimeError)
+
 v1.0.8
 * add nkf gem as runtime dependent gem for future Ruby 3.4.
 
 v1.0.7
 * support Ruby 3.3