If you are currently on the Voice Plan, Apple will turn off auto-renew, the company writes in a support page about the plan’s discontinuation. Naturally, Apple says that you can also switch to one of its other Apple Music plans.
With the removal of the Voice Plan, Apple’s most affordable Apple Music offering is the $5.99 per month Student tier — which, of course, is only available to students. The company raised the price of the Apple Music Student plan in June 2022 and bumped up the cost of the Individual and Family plans in October 2022.
Update November 1st, 4:06PM ET: Added details from an Apple support page.