From type/Version

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method plus(Version:D: --> Bool:D)

Returns True if comparisons against this version allow larger versions too.

my $v1 = v1.0.1;
my $v2 = v1.0.1+;
say $v1.plus;                                     # OUTPUT: «False␤» 
say $v2.plus;                                     # OUTPUT: «True␤»