Essential information > Timelines for data availability

Timelines for data availability

Data previously made available

The timeline for data previously made available can be found on the past timelines page.

Future data availability

For information on planned future data releases, please see the future timelines page.

Most recent data releases - December 2021

Available on the Data Portal:


Rolling updates to returned datasets

Updates to datasets returned by researchers are made on an ongoing basis. For a list of available returns, please see the Returns Catalogue.

Coverage of linked health data

For information on the coverage dates for the various types of linked health data, including estimates for censoring dates that would apply to longitudinal studies, see the Data providers and dates page.

Note on English & Scottish inpatient data

During the financial year from Apr 2020 to Apr 2021, UK Biobank received monthly extracts of hospital inpatient data for England, with each file containing the whole financial year to that point. Whilst we removed exact duplicates of previous episodes, we noted occasions where a second record exists which differs slightly from a previous episode despite clearly being a record of the same hospital episode. Currently, both versions of this same episode will appear in our released data.

Similarly the extracts from Scotland are all records from 01/04/2019 onwards. Again, exact duplicates have been removed, but there remain in the new records low numbers of admissions from 01/04/2019. We have not made any attempts as yet to determine if these are genuinely new admissions, or alterations to previous admission records.

We are exploring methods for retaining only the most recent version of each hospital admission, but for now researchers should take this issue into consideration when working with the data.