# August 17, 2026 — Rules: publish with review, counters and expressions

This update improves the **rules** engine and the **Explore** and **Metrics** charts.

## Publishing rules with review

Publishing a rule version now requires reviewing the changes against the active version. The comparison now also includes the **actions**, in addition to the conditions. See [Versioning](/en/rules/versioning/).

## New action: add to temporary variable

The **Add to temporary variable** action adds a step (by default `+1`) to a counter that is only valid during the evaluation of the event. Useful for counting independent signals and deciding with a simple comparison, such as `%pernas >= 2`. It complements the [temporary variable](/en/rules/actions/set_temporary_variable/).

## Expressions with `true`, `false` and multiple lines

Condition expressions now accept the literals `true` and `false` and can span multiple lines. See the [expression syntax](/en/rules/expression-syntax/).

## Automatic granularity in charts

The **Explore** and **Metrics** charts gained the **Granularity** selector with the **Auto** option, which chooses the most readable interval for the period and indicates which one was applied (for example, `Auto (1 hour)`). See [Metrics](/en/behavioral/metrics/).