Memory Sidecar v3.5.1 is now available as the operational hardening release for the hermes-memory-installer ecosystem. This version targets production readiness for the agent-agnostic memory sidecar, addressing stability, security, and observability. Experienced developers building multi-agent architectures or deploying memory services at scale will find critical improvements in resource management, fault recovery, and isolation.
Agent-Agnostic Memory at Production Scale
The core premise of the Memory Sidecar remains unchanged: it provides a standalone, persistent memory layer that any agent—LLM, API gateway, or custom service—can access via a uniform HTTP interface. v3.5.1 hardens this interface against real-world operational stress. No agent-specific modifications are required, meaning existing clients continue to work with zero code changes. The focus here is not on new features but on ensuring the sidecar behaves predictably under load, network partitions, and resource contention.
What “Operational Hardening” Actually Means
Hardening in this release covers three pillars: reliability, security, and operational visibility.






