PQShield has achieved a significant milestone in post-quantum cryptography (PQC) by reducing the memory footprint of its PQMicroLib-Core library to under 5KB of RAM. This technical update, unveiled at Embedded World 2026 in Nuremberg, directly targets the stringent memory constraints inherent in a wide array of embedded devices, including medical wearables, secure payment terminals, and industrial control systems1. Such low resource consumption facilitates the integration of advanced cryptographic defenses into platforms previously deemed too limited for complex PQC algorithms. The library provides production-ready support for NIST-standardized algorithms, notably ML-KEM (FIPS 203), ensuring robust protection against future quantum computing threats. This development represents a crucial step towards embedding quantum-safe encryption into the pervasive network of low-power, high-volume devices that form critical components of modern infrastructure. This practical advancement accelerates the urgency for organizations to plan and execute cryptographic migrations, as quantum-resistant solutions become increasingly viable for even the most resource-constrained environments.