This is something that Adobe has been doing with its Creative Cloud program, although the company did continue to offer standalone software to users who didn’t really want a subscription. Unfortunately for users of the standalone version of Lightroom, this is the end as Adobe has released Lightroom 6.14, which is also the final version for the standalone copy of the photo editing software.
According to Adobe, “While you may continue to purchase and use Lightroom 6 with a perpetual license, Adobe will no longer provide updates to the software. Consider upgrading to the Creative Cloud Photography plan to get the latest updates in Lightroom Classic CC and the all-new Lightroom CC, and ensure that the software works with raw files from the newest cameras.”
For hobbyists or amateurs who take photos for fun and non-professional purposes, we suppose this probably won’t hurt them too much, although as DPreview points out, newer camera models might not be supported by the software, plus there might be OS compatibility issues in the future as Microsoft/Apple updates their platforms as well, something to think about if you plan on keeping it.