changing category name

how to 301 the old url after i change the forum title?

any suggestion for url rewrite? just for category and sub category only.

Forum Path Title Bits is using [forum_title]-f[forum_id] , thread url is [thread_title]-t[thread_id] (forum path is not included.

TIA

It s not suggested to change your established link structure.

i just want to change the category name / sub category.

my forum category url was
www. example . com/forum/aaa-f1/

after i change aaa to bbb the url is become www. example .com/forum/bbb-f1/

my question is how to redirect the old one ?

Renamed Category and forums - redirect - vBulletin SEO Forums