extracting the text from an opendocument file

[Vincenzo Morgante <enzom83@yahoo.it>]

Hi,
I'm developing a java class which have to be able in reading an OpenDocument text file (with odt extension) in order to extract all the text contained in it.
Some years ago I made a VB.NET library in following OpenDocument 1.0 specifications. Now this library works still fine, but I'd like to be sure that not be substantial changes in the newer versions of the standard (1.1 and 1.2).
Could I follow the old OpenDocument 1.0 specifications without any problems or would it be expedient to follow the newer specifications?
In other words, if I follow the old OpenDocument 1.0 specifications, could I fall into problems in reading a file of the newer versions with regard to the text extraction?

Thanks a lot!

Vincenzo