diff --git a/blog/2025-08-20-release-notes.mdx b/blog/2025-08-20-release-notes.mdx
new file mode 100644
index 000000000..0d446f5d6
--- /dev/null
+++ b/blog/2025-08-20-release-notes.mdx
@@ -0,0 +1,119 @@
+---
+title: 2025-08-20 release notes
+tags:
+  - releases
+---
+import Tabs from '@theme/Tabs';
+import TabItem from '@theme/TabItem';
+import QueryBuilder from '@site/src/components/queryBuilder';
+
+
+:::info
+
+During our final QA processes, we detected the following issue in the data: all Microsoft ML buildings were incorrectly assigned `"is_underground": true`. We decided to make the `2025-08-20.0` release public with the bug and follow up with a patch to the data. Expect `2025-08-20.1` to be released shortly.
+
+![Schema docs describing is_underground](/img/is_underground.png)
+
+:::
+
+## Overview
+
+
+**The `2025-08-20.0` release of Overture data and `v1.11.0` of the Overture schema are now available.** The datasets and release artifacts are available as GeoParquet files stored on both AWS and Azure. The paths are:
+
+### Release data
+
+**Microsoft Azure:**
+```
+az://overturemapswestus2.blob.core.windows.net/release/2025-08-20.0/
+```
+
+**Amazon S3:**
+```
+s3://overturemaps-us-west-2/release/2025-08-20.0/
+```
+### Data changelog
+
+**Microsoft Azure:**
+```
+az://overturemapswestus2.blob.core.windows.net/changelog/2025-08-20.0/
+```
+
+**Amazon S3:**
+```
+s3://overturemaps-us-west-2/changelog/2025-08-20.0/
+```
+
+
+### Bridge files
+
+**Microsoft Azure:**
+```
+az://overturemapswestus2.blob.core.windows.net/bridgefiles/2025-08-20.0/
+```
+
+**Amazon S3:**
+```
+s3://overturemaps-us-west-2/bridgefiles/2025-08-20.0/
+```
+
+### GERS Registry
+
+**Microsoft Azure:**
+```
+az://overturemapswestus2.blob.core.windows.net/registry/
+```
+
+**Amazon S3:**
+```
+s3://overturemaps-us-west-2/registry/
+```
+
+
+
+<!-- truncate -->
+
+You can access the datasets by following the process outlined [here](/getting-data). We encourage you to ask questions and provide feedback on the Overture Maps [Discussion forum on GitHub](https://github.com/orgs/OvertureMaps/discussions). You can also file issues and report bugs in our [data](https://github.com/OvertureMaps/data/issues) and [schema](https://github.com/OvertureMaps/schema/issues) repositories. If you have a suggestion for a new dataset or if you have data you'd like to contribute to Overture, you can email us at data@overturemaps.org. We’d love to hear from you.
+
+
+## Theme-specific updates
+
+:::info
+The base, buildings, divisions, places, and transportation themes are in GA. The addresses theme is in alpha. 
+:::
+
+### Addresses
+
+- no updates
+
+
+### Base
+
+- added data for `quay`, `railway`, `artwork` classes
+
+### Buildings
+
+- added new data from Esri and Vancouver
+- flagged a bug in the data: all Microsoft ML buildings described as underground
+
+
+### Divisions
+
+- no updates
+
+### Places
+
+- no updates
+
+### Transportation
+
+- no updates
+
+
+## Schema changelog
+
+The changelog for Overture schema `v1.11.0` is [here](https://github.com/OvertureMaps/schema/tree/v1.11.0).
+
+## Attribution
+
+You'll find information about attribution and licensing [here](/attribution).
diff --git a/docs/release-calendar.mdx b/docs/release-calendar.mdx
index 98ee213a9..d6c3249fc 100644
--- a/docs/release-calendar.mdx
+++ b/docs/release-calendar.mdx
@@ -11,7 +11,7 @@ Our planned release schedule for the next two months is below. The release dates
 
 | Date | Data version | Schema version |
 | ----- | ----- | ----- |
-| 20 August 2025 | `2025-08-20.0` | `v1.12.0` |
+| 20 August 2025 | [`2025-08-20.0`](https://docs.overturemaps.org/blog/2025/08/20/release-notes/) | [`v1.11.0`](https://github.com/OvertureMaps/schema/releases/tag/v1.11.0) |
 | 24 September 2025 | `2025-09-24` | ? |
 
 
diff --git a/docusaurus.config.js b/docusaurus.config.js
index 51f71a790..dde39b91c 100644
--- a/docusaurus.config.js
+++ b/docusaurus.config.js
@@ -21,8 +21,8 @@ const config = {
   favicon: 'img/favicon.png',
 
   customFields: {
-    overtureRelease: '2025-07-23.0',
-    pmtiles_path: 'https://d3c1b7bog2u1nn.cloudfront.net/2025-06-25'
+    overtureRelease: '2025-08-20.0',
+    pmtiles_path: 'https://d3c1b7bog2u1nn.cloudfront.net/2025-07-23'
   },
  /**
   future: {
diff --git a/static/img/is_underground.png b/static/img/is_underground.png
new file mode 100644
index 000000000..f719e4fdf
Binary files /dev/null and b/static/img/is_underground.png differ