$ file ./netbsd ./netbsd: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, for NetBSD 9.99A, not stripped We appear to have revived the old alphanumeric versioning scheme, according to file(1)! Someone needs to teach file(1) that this is 9.99.100, not 9.99A(.0).