Analysis of information sources in references of the Wikipedia article "GNU Emacs" in Portuguese language version.
A version number with two components (e.g., ‘22.1’) indicates a released version; three components indicate a development version (e.g., ‘23.0.50’ is what will eventually become ‘23.1’).
There is a new version numbering scheme. What used to be the first version number, which was 1, has been discarded since it does not seem that I need three levels of version number. However, a new third version number has been added to represent changes by user sites. This number will always be zero in Emacs when I distribute it; it will be incremented each time Emacs is built at another site.
