I'm not sure if you're implying that 6 months is too long or just providing more info. I don't think it is too long given that most distributions have stabilization periods where no new versions will be accepted e.g. Debian 8 was frozen on November 5 last year.
"Few months" being almost 6 months (Python 2.5 was released on September 19th 2006[1], Red Hat Enterprise Linux 5 (Tikanga), 14 March 2007[2])
[1] https://www.python.org/download/releases/2.5/
[2] http://en.wikipedia.org/wiki/Red_Hat_Enterprise_Linux#RHEL_5