No. Memberships do not renew automatically. You can renew manually whenever you need continued access to updates and downloads.
You keep any add-ons you have already downloaded, but you will need an active membership to download new versions or other add-ons included in your membership pack.
Your membership only provides access to add-ons in the Basic and Premium categories, depending on your membership type. Add-ons from other paid categories must be purchased separately.
The Basic category includes add-ons that were previously available for free. They were moved to a paid membership model to support ongoing development, updates, bug fixes, and compatibility with new XenForo versions.
Premium includes more advanced paid add-ons that generally require more development and maintenance.