Devices / Self-hosted apps & servers / mergerfs Union filesystem

mergerfs Union filesystem releases

Name: mergerfs Union filesystem
Author: mergerfs

current

mergerfs Union filesystem is tracked under self-hosted apps & servers. Its latest version, 2.42.0, shipped on May 8, 2026.

Latest version: 2.42.0
Released: May 8, 2026
Category: Self-hosted apps & servers
Last checked: Nov 6, 2026

How to update mergerfs Union filesystem

Open update page ↗

Read the release notes first — self-hosted projects break config and schemas between versions more often than appliances do.
Docker: pull the new image tag and recreate the container (`docker compose pull && docker compose up -d`).
Package or bare metal: update through your distribution's package manager, or replace the binary from the releases page.
Back up the config and database directory first. For most projects a downgrade is not supported once the schema has migrated.

Always install releases from the project itself. Firmwarely links out; it never hosts downloads.

What changed

mergerfs v2.42.0: Donations / Sponsorship: If you find mergerfs useful please consider supporting its ongoing development. https://github.com/trapexit/support New features: lup (least used percentage) policy: selects the branch with the lowest used space percentage. mount.mergerfs now includes the …

Release notes ↗

Version history

2.42.0

May 8, 2026

FAQ

What is the latest version of mergerfs Union filesystem?

Version 2.42.0, released May 8, 2026. This page is refreshed every hour from the project's release page.

How do I update mergerfs Union filesystem?

See the step-by-step above. Pull the new image or package and restart the service. Read the release notes and back up the data directory first; most projects can't downgrade once the database has migrated.

How does Firmwarely know when there's a new version?

Every hour we read the project's official release page for mergerfs Union filesystem and record the version, date and changelog. Subscribers watching it get an email when it changes: the next morning on Pro, in the Monday roundup on the free plan.

Is this an official mergerfs page?

No. Firmwarely is independent. Project and product names belong to their owners; always install releases from the project's own source.