Apple has released another update to iTunes. The 12.6 release the other day was version 22.214.171.124. This new release is 126.96.36.199.
This has happened previously. Apple released iTunes 188.8.131.52 on August 2, 2016 and then released 184.108.40.206 a short time thereafter—I think it was certainly by August 12.
Sometimes you just don’t know how something is going to work until it’s tossed into the wild. And you have to appreciate Apple’s short turnaround.