we are using struts 2.0.5 and 188.8.131.52 in our applications. And we decided to migrate to 184.108.40.206 to get the security fixes.
we use struts tags to render UI components and using 'required' attribute to get the '*' along with the components.
In the version 220.127.116.11, the attribute required is dropped, and we need to change to requiredLabel to get the same effect, this increases migration&testing effort for a application which has 1000+pages
Hence we require a backward compatibility for 'required' attribute in struts tags.
Also nowhere in the migration document this information is specified. This makes the struts migration as block-box. Hence we require a proper migration document which should specify what are all the changes required in the application to migrate the struts.
But we managed to get the '*' in UI by replacing UIBean.class,AbsctactUITag.class and struts.tld from 18.104.22.168 version.