Etro

Reports with charts that have been made with 1.2.3 in my case dont work in 1.2.5 until the compatibility is set to 1.2.0. I wonder why is that so - and will this be changed in future? Like this its really a hard job to keep the Jasperreports-Software up-to-date - I have to set these compatibility-settings all the time and everywhere. Why seems to be there no recognized internal tag in the jasper- or jrxml-files for versioning?