TreeSize, a disk space analyzer, will no longer offer perpetual license support for older versions unless users subscribe to their maintenance plan. JAM Software, the developer, stated this policy change is due to the risks associated with indefinite availability of older software versions and the overhead of maintaining them. "Making these available for download indefinitely and without restriction is something we consider a risk to our customers," said a company representative.

While TreeSize acknowledges the change has been "frustrating for some customers," they maintain that users receive indefinite use of the software version they purchased, thus not warranting refunds. A free version of TreeSize exists but lacks advanced features and is not for business use.

This shift reflects the growing trend in the software industry towards subscription models for predictable revenue streams. JAM Software aims to "continue offering our customers a relevant, well-maintained product over the long term," citing the need for predictability in development and support, especially in a challenging economic environment. The company emphasizes its responsibility to business customers who rely on high-quality software.