McObject released its updated eXtremeDB 9.0 with two improvements that include native Approximate Nearest Neighbor (ANN) indexes and a new Edge Client requiring as little as 8 KB of memory. The additions mark eXtremeDB’s as a database engine for mission critical embedded systems, edge AI workloads, and IoT deployments which demand deterministic performance, minimal footprint, and reliable upstream data movement.

SEATTLE, WA – June 11, 2026 – McObject, developer of the eXtremeDB embedded database management system, announced the latest service release of eXtremeDB/rt. Designed specifically for deeply embedded and hard real-time systems, this release aims to reduce memory footprint, provide sophisticated hardware-free storage simulation, and offer broad hardware and networking support to streamline the development of deterministic applications.

In Part 1 and Part 2, we looked at how EDF and PI scheduling support real-time database behavior, and why true timing guarantees also depend on precise measurement, predictable rollback, well-placed verification points, and profiling on real hardware.

In part 1 and part 2 of this series, we talked about two key real-time scheduling algorithms and how they fit into our real-time database goals. We also covered why scheduling alone isn’t enough, and how precise time measurement, predictable rollback, well-placed verification points, and a bit of real-world profiling are what actually make “on time” possible.

In Part 1 of this series, we talked about two key real-time scheduling algorithms — Earliest Deadline First (EDF) and Priority Inheritance (PI) — and how they tie into our real-time database management goals. Those algorithms decide when each transaction should run, but that’s only the beginning.

In hard real-time systems, deadlines aren’t suggestions, they draw the line between working and failing. Every task must finish exactly when it should; even a tiny slip can ripple through and throw everything else off balance.

Wavelynx Technologies collaborated with McObject in order to introduce eXtremeDB’s interoperable embedded database into Wavelynx’s innovative building access control reader. The partnership allows real-time data management for secure and scalable access control in commercial applications.