QuarqLabs has released version v0.4.0 of its Quarq Agent as an open-source project, aiming to enhance AI agents with a robust long-term memory system. This architecture addresses key challenges such as forgetfulness and hallucination by introducing a four-layer memory system: Query, Storage, Reasoning, and Learning. The system supports asynchronous query expansion, hybrid searches, and categorizes memories into semantic, episodic, and procedural types. The company has announced a strategic pivot towards robotics infrastructure, archiving Quarq Agent as a research asset without active maintenance. The open-source project offers minimalistic local deployment with features like Gmail and Google Calendar integration, providing a valuable foundation for developing long-term AI companions.