[BLOG] <title>OpenSearch Announces New Associate Member

### Describe the blog post

New Member added to Foundation.

### Expected Title

OpenSearch Announces New Associate Member

### Authors Name

Lisa Briggs

### Authors Email

lbriggs@linuxfoundation.org

### Target Draft Date

4/16/2026

### Blog Post Category

community

### Target Publication Date

04/16/2026

### Additional Info

_No response_