# GeoNames Monthly Diff Report October 2023

_October 5, 2023_

> **⚠️ Warning**
>
> This release note is more than two years old and may no longer reflect
> current behavior. View the
> [latest release notes](/geoip/release-notes/).

[GeoNames Monthly Diff Report (October 2023)](/csv/GeoNames-Monthly-Diff-Report-October-2023.csv)

GeoIP2 and GeoLite2 databases incorporate
[GeoNames geographical data](https://www.geonames.org/), which is made available
under the
[Creative Commons Attribution 4.0 License](https://creativecommons.org/licenses/by/4.0/).

Monthly updates to GeoNames data are incorporated into our databases as we
refresh them. Above you will find a CSV report of these changes for the month of
October as they relate to the following fields:

- `geoname_id`
- `country_name`
- `country_code`
- `city_name`
- `subdivision_1_iso_code`
- `subdivision_2_iso_code`

Note that the values for the `old_` and `new_` columns for a given field only
differ for the field defined in the `diff_in` column.

\* In this month's update there are changes to a number of geoname IDs for
locations in Brazil.