containrrr/watchtower
A process for automating Docker container base image updates.
What it does
Watchtower is a tool that automatically keeps software applications running in their most up-to-date form, without requiring anyone to manually intervene or schedule updates. Think of it like an automatic software updater that runs in the background, ensuring that the building blocks of your deployed applications are always current.
Why it matters for PMs
For teams shipping software continuously, staying on top of updates is both a security and operational necessity — outdated components are a common source of vulnerabilities and technical debt. However, this project is no longer actively maintained, meaning teams adopting it today would be taking on risk without ongoing support, and should evaluate alternative solutions before building it into their infrastructure strategy.
Early stage — limited signal data
Score updated Feb 18, 2026
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