The new estat grangerplot command can now be used after didregress and xtdidregress to graphically assess whether treatment effects vary over time.

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If you are using didregress or xtdidregress for difference-in-differences estimation and you are using the wild bootstrap to compute confidence intervals and p-values, you will now obtain results much faster. In addition, you can now perform the wild bootstrap in blocks if you need to improve memory use.