For the complete documentation index, see llms.txt. This page is also available as Markdown.

April 2026

This release note provides information about the April 2026 release of OS Open Rivers.

Feature count

Feature
Count

WatercourseLink

193 040

HydroNode

197 734

Next release

The next release of OS Open Rivers is scheduled for October 2026.

Last updated

Was this helpful?