# Difference in Volatility Calculation from RiskMetrics 1996 to RiskMetrics 2006 VaR

In the original legacy RiskMetrics documentation from 1996, volatility is calculated using a simple exponentially weighted moving average with some decay factor to determine the weights. This would be used in the calculation of volatility for variance-covariance VaR for example. In RM2006, is volatility still calculated this way? If not, how does it differ and can the 1996 method be substituted?