How to maintain my collections while upgrading from Solr 4.0 to 4.8?

Question

I'm using Solr 4.0 and have two rather large collections indexed. I would rather not have to reload the data when upgrading to 4.8, but I'm not finding much in the way of instructions on how to maintain my collections. Is there a procedure for this other than common sense?

Answer 1

Indexes are compatible. Upgrade your Solr and point the new version at the same index location and everything just works.