Enlarge / The Sonos Connect:Amp in what is soon to be its natural setting: a room filled with old stuff that may or may not work. (credit: Sonos)

Sonos has been slinging smart speakers—and tech for connecting them—to dedicated fans since 2005. This week, however, Sonos announced the end of software support for its older product lines, and many of those once-loyal customers are furious.

Software support for “legacy” product lines will end in May of this year, Sonos said Tuesday in a corporate blog post and an email sent to customers. The list of products being forced off into the tech sunset includes original Zone Players, Connect, and Connect:Amp (launched in 2006; includes versions sold until 2015), first-generation Play:5 (launched 2009), CR200 (launched 2009), and Bridge (launched 2007).

Owners of an affected product basically have two options. Either they can take advantage of Sonos’ “Trade Up” program to snag a discount on new Sonos stuff, or they can keep using their old product with the understanding that inevitably, certain functions will simply begin to fail over some long, unspecified period of time.