Absolutely untrue
Any Leupold scopes dated after Nov. 2011 not originally imported by Korth Canada will not be serviced under warranty. You can tell the date of manufacture by the serial number on your scope, located on the underside of the scope tube, by the windage and elevation adjustments.
Scopes from 1974-1992 started with a letter for a serial number, after that they ended with a letter. (prefix/suffix)
Serial number dating:
Prefix Suffix
E = 1974 A = 1993
F = 1975 B = 1994
G = 1976 C = 1995
H = 1977 D = 1996
J = 1978 E = 1997
K = 1979 F = 1998
L = 1980 G = 1999
M = 1981 H = 2000
N = 1982 J = 2001
P = 1983 K = 2002
R = 1984 L = 2003
S = 1985 M = 2004
T = 1986 N = 2005
U = 1987 P = 2006
V = 1988 R = 2007
W = 1989 T = 2008
X = 1990 U = 2009
Y = 1991 V = 2010
Z = 1992 W = 2011
X = 2012
Y = 2013
AA = 2014
AB = 2015
AC = 2016
leupold.com/resources/faqs/#WhenWasMyScopeManufactured