Please start release announcements by saying briefly what it is! "R is a programming language for statistical analysis" or whatever. Don't assume that people are familiar with every possible piece of software already.
Also pull important stuff to the top of announcement. Were there security issues that need you to upgrade? What are the major new features that would encourage you to upgrade?
Also pull important stuff to the top of announcement. Were there security issues that need you to upgrade? What are the major new features that would encourage you to upgrade?
For example here's a release announcement I wrote recently: https://www.redhat.com/archives/libguestfs/2020-February/msg...
Free software doesn't usually have an advertising budget, so you have educate people on what your software does at every opportunity you get.