A new update to StataNow has just been released. With new statistical features and interface improvements, there is something for everyone. We are excited to share the new features with you.

Local average treatment effects. When individuals do not comply with their assigned treatment, it may not be possible to estimate a treatment effect for the entire population. We need to account for possible endogeneity that arises because of unobserved factors that may be related to the choice of the treatment. With the new lateffects command, we estimate the local average treatment effect (LATE) for those who comply with their assigned treatment. The LATE, also known as the complier average treatment effect, can be estimated whether your outcome of interest is continuous, binary, count, or fractional.

Variance–covariance matrix (VCE) additions for linear models. Stata’s most commonly used linear regression commands now come with a richer set of VCE options, allowing standard errors and confidence intervals that are robust in even more situations. For instance, you can now estimate Driscoll–Kraay standard errors when fitting a model with xtreg, fe. And enhanced bias correction including HC3 standard errors with clustering and the inference adjustment of Hansen is now available with regress, areg, xtreg, didregress, and xtdidregress. You can estimate multiway cluster–robust standard errors with ivregress. And more.

Do-file Editor change history ribbon. The Do-file Editor can now indicate that changes have been made to a line by using colored markers in the change history ribbon located in the margin. Two markers indicate changes to a line: modified and reverted-to-original. A modified marker indicates that a change was made to a line. A reverted to original marker indicates that a change was made to a line, saved, and then reverted to its original state. You can choose whether the change history ribbon is shown and customize the colors to be used for each type of marker.

Improved variable name truncation in the Data Editor. In the Data Editor grid, you can now select whether variable names will be truncated at the end (the default), in the middle, or one to four characters before the end.

In addition, the following new features are available both in StataNow 19 and in Stata 19:

Copy value labels across frames. You can now copy a value label from one frame to another frame with the new fromframe() and toframe() options of label copy. And with the new frame putlabel command, you can copy multiple value labels from the current frame into one or more other frames.

Control note wrapping in tables. You can now specify whether notes under a table should wrap at the table’s width when exporting to SMCL and plain text by using the new collect style smcl and collect style txt commands. Specialized commands for creating tables—table, dtable, etable, and lcstats—have new options for specifying whether notes under the table should wrap.

Enhanced syntax highlighting. Syntax highlighting in the Do-file Editor now supports macros within strings.

You can see all the new features at https://www.stata.com/new-in-stata/features/. And you can try out these version-specific additions by typing update all in the Command window in StataNow 19 and in Stata 19.