Now, not all projects can be as refined as Linux. Before the final 1.0 release, we went through fifteen 0.99 patchfiles, and pl14 alone went through subreleases 'a' through 'z'. Now _that_ is a release process.
Not to mention the odd-ball releases, like 0.96c+
Sadly, in this day and age of RPM's etc, we have silly limitations, and I cannot call this release '0.99pl5a or some such awe-inspiring name just because "rpmbuild" is such a party pooper. So it's just 0.99.1.
Oh well. Aspiring to such greatness as the Linux release numbering is hubris anyway. You can attain such perfection only once in your life.