Features

• See exactly what changed before you merge. Dataset reviews now render every edit in place: expression changes read as before-and-after, computed-column distributions sit side by side, and geography reassignments show on a before/after map. A running change summary counts everything and jumps you straight to any section, and each modified column lists the models it would affect.
• Define targets as expressions. A target's response and weight can now be numeric formulas built with the same engine behind computed columns and filters, so a transform like a division or a custom weighting lives inside the target itself.
• Partition and compute with new hash() and modulo operators for stable, repeatable bucketing.
• Filters and partitions accept more: != and not in, date literals, and an is in picker that suggests a column's real values as you type.

Improvements

• Model fits are faster and lighter. Gradient-boosted fits prepare the dataset once and reuse it across every tree, which cuts redundant reads and sharply lowers memory on large, wide datasets.
• Deleting a branch or a versioned entity now asks for confirmation with the branch spelled out, so you know precisely what you're removing.
• Long entity names in notifications stay readable, truncating with the full name available on hover.

Fixes

• Distribution charts update correctly after you regroup levels, show data reliably on first load, and label the top bin accurately.
• Correlations compute properly on date columns and report the right category count.
• Lift charts render on models with many coefficients.
• Choropleth maps highlight regions smoothly as you hover, and "view as map" works the moment you associate a geography with a column.
• Replacing a branch's data file immediately shows the new data, and branch counts on the dataset page stay current.
• Partition bucketing and large integer values stay accurate in expressions.
• Approving a review no longer fails with a permission error.
• Automated builds that are still running stay cancelable.
• Saving a chart configuration closes right away.