[awinder]

A lot of commenters have keyed into the product heartbeat line. Shipping updates is one common signals of a healthy product but it’s not the only one. If your product has non-user-facing changes, you should try to make noise about what other people are actively building or doing with your product. Or if you’re offering a service, market reliability and put time into showing stability and educating customers on why they should trust that they can build with you. You should also be working on acquiring customers if your product is in that phase. Realistically you’re talking about a product that requires little to no maintenance for existing customers which should free you up to spend time getting more customers.

Any of the above is going to realistically create feature work as you work with new customers or users and find further areas for completing your product offering.

Word of caution — this work will never realistically end, or you will end. There is no end state to software. Software is the tool, the product is your user or customer community and the problems you solve together. If you’re looking to build software as an end state, I see obvious problems, and your customers do too.