Components

Search

Mastodon may optionally utilize an installation of Elasticsearch or OpenSearch. Administrators may add either service to enable full-text search features.

Versions of Mastodon are listed across the top of the matrix. Versions of each required component are listed along the left side.

Elasticsearch

	4.6	4.5	4.4	4.3	4.2
9.x
8.x
7.x

Key
	Supported in this version
	End of life, use with caution
	Not supported in this version

References: Elasticsearch Maintenance Policy

Terminal

# Check running version
elasticsearch --version

OpenSearch

	4.6	4.5	4.4	4.3	4.2
3.x
2.x

Key
	Supported in this version
	End of life, use with caution
	Not supported in this version

References: OpenSearch Maintenance Policy

Terminal

# Check running version
opensearch --version

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FFmpeg

Mastodon requires an installation of FFmpeg for video processing, and administrators must ensure a supported FFmpeg version is present and configured.

Nginx

Mastodon requires a load balancer or reverse proxy to properly terminate TLS/SSL connections between users and ingress traffic to the system.