Why do different versions of Amos give different values for BIC?

Raftery (1993, 1995) provided two different formulas for BIC. Up through version 4, Amos used the 1993 formula. Amos 5 and later use the 1995 formula.

References

Raftery, A. (1993). Bayesian model selection in structural equation models. In K. Bollen & J. Long (Eds.), Testing structural equation models (pp. 163–180): Newbury Park, California.

Raftery, A. (1995). Bayesian model selection in social research. In P. Marsden (Ed.), Sociological Methodology 1995 (pp. 111-163): San Francisco.