How stable are bookmarks to threads?

[Stephen Tashi]

If I bookmark a thread in my browser, is there a forecast for how long the bookmark will remain valid? Is it there periodic forum software maintenance that would invalidate by changing the url for the thread? - such as yearly archiving.

 

[Greg Bernhardt]

If I bookmark a thread in my browser, is there a forecast for how long the bookmark will remain valid? Is it there periodic forum software maintenance that would invalidate by changing the url for the thread? - such as yearly archiving.

They will always be good, thread/post URLs do not change.