alt Hacker NewsYou could ask the same question about the contents of the release. Why does software need to be released with features X, Y, and Z on March 7th when it could be released with features X and Y on February 15th?
It's inevitable that work will slip. That doesn't necessarily mean the release will slip. Sometimes you actually need the thing, but often the work is something you want to include in the release but don't absolutely have to. Then you can decide which tradeoff you prefer, delaying the release or reducing its scope.
This is the direction of my thinking, too.
Earlier discussion focuses on writing software at a slower pace to inject more accuracy and robust thinking/design/code. Conceptually, yes, I get it!
But in numerous practical scenarios, some adherence to a recurring schedule seems like the only way to align software to business outcomes. My thinking is tied more to enterprise products (both external and internal) rather than open-source.
I like an active dialog with engineers. (I'm neither SWE nor PM). Let's talk together about estimates. What's possible and not possible. Where do you feel most uncertain, most certain. What dependencies/externalities do you expect to cause problems.
Those conversations help me (business/analytics-side) do things like adjust my own deadlines, schedules. Communicate with c-suite to realign on what's possible and not. Adjust time.