An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

HMS: Hydrologic Micro Services

Contact Us

HMS Version History

HMS releases and update history


Version History

1.1.0

Title: infrastructure update
Release Date: 10/10/2024
Details: Infrastucture update to HMS web stack, includes bug fixes and performance improvements.

1.0.0

Title: public
Release Date: 10/01/2020
Details: Public release of version 1.0.0 of the HMS web application and REST API.

0.1.0

Title: beta
Release Date: 07/16/2020
Details: Initial beta release of HMS web application and components.