its got to do with the number of lines of code to be compiled. If the number is prime you’re in luck, rest of the time you’ll be starved for air, limited to a single dimension and increased compression to remove those pesky dynamics.
Occasionally the lines of code may represent a fibonacci sequence. When that occurs the resulting sonics will induce euphoria and those builds will become known as the Golden Ear releases. Many followers will refuse interim upgrades, waiting on their deathbed for the next Golden Ear release.
I suspect 1.7 is a Golden Ear release. 