The 99% solution
Then again, the Chrome and Firefox maintainers could emulate early Linux kernel numbering. In 1993 it felt like Zeno was numbering the kernels: http://www.oldlinux.org/Linux.old/docs/history/0.99.html . One hundred and five versions, from "0.99" (13 Dec 1992) to "0.99.15j" (2 Mar 1994), separated "0.98.6" from "pre-1.0". Perhaps "Chrome 99.99991" could follow ""Chrome 99.9999" -- or should it be "Chrome 99.99999"?