There is now a simoptions.whichstats(6)=2 which makes calculating the quantiles faster.
Does exactly the same thing as simoptions.whichstats(6)=1, but the code is vectorized rather than loop, so faster. It can cause out of memory errors in larger models with large numbers of quantiles, hence is not the default which remains simoptions.whichstats(6)=1.
Note: simoptions.whichstats(6) controls the decision to calculate quantiles. So now setting it to zero skips calculating quantiles, setting it to one calculates quantiles, setting it to two calculates quantiles faster but using more memory.