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GOV.UK GA4 improvements roadmap

This page details upcoming and recent changes to the GOV.UK GA4 data collection and processing.

See the changelog for previous releases.

What we’re working on now

Improving the GOV.UK GA4 flattening pipeline

Developing the pipeline, splitting the current flattening code into multiple stages to improve debugging and enable more advanced calculations to be carried out during the data processing.

Deleting PII found in the GOV.UK GA4 dataset

Deleting PII found in the GOV.UK GA4 dataset in our routine checks.

Recently released

Backfilled the GOV.UK GA4 flattened dataset

We have refreshed the GOV.UK GA4 flattened dataset for September so that the changes to the calculation of the cleaned_page_location now apply since the canonical_url changes were made at the beginning of September.

Removed our redaction of phone numbers in search terms

We appreciated that previous attempted to redact this information did not function as we had hoped, and so have removed this redaction.

MVP guidance on UTM parameter usage written up

We have written up and published basic guidance on UTM parameter usage.

Updates

We regularly review our priorities and our plans may shift. We’ll update this page when this happens and add more detail when we can.

This page was last reviewed on 15 October 2025. It needs to be reviewed again on 15 April 2026 .