This month we're introducing a dedicated Resource Updates section to our newsletter, announcing Ponte Vecchio GPUs at CHI@TACC for a limited time, improving CLI authentication with the new ccauth tool, increasing the image size limit to 100GB, adding Ubuntu 26.04 support with a new fractional GPU image, and improving CHI@Edge BYOD enrollment. In the community, Kate Keahey delivered a keynote at CCGrid 2026 in Sydney.

Distributed storage systems are upgraded constantly, and one subtle class of bug — data format incompatibility, where a new version misreads data written by the old one — ranks among the leading causes of cloud incidents during upgrades, with consequences as severe as data loss and cluster-wide outages. UpFuzz, an award-winning open-source fuzzer from Purdue University, is the first tool built specifically to hunt these cross-version bugs. It has already uncovered 15 previously unknown failures in the latest stable releases of Cassandra, HBase, and HDFS — and its evaluation was run on bare metal testbed infrastructure that included Chameleon.

Trovi is expanding beyond user-uploaded artifacts to include selected reproducibility artifacts from major computer science conferences like EuroSys, SOSP, and SC. We’ve built a pipeline to crawl, index, and surface these external artifacts in the same interface you already use, and connected them to Chameleon so you can go from discovering an interesting artifact to running it on bare metal in minutes.

The RAPTOR team from Argonne National Laboratory and collaborating institutions wins the SC25 Best Reproducibility Advancement Award, using Chameleon Cloud to make their artifact fully reproducible. This marks the second consecutive year a Chameleon user has taken home this honor.

This month we're welcoming CHI@NCAR as a full Chameleon site with 40 new AMD EPYC nodes, announcing baremetal H100 GPUs at CHI@TACC, adding Jetson Orin devices on CHI@Edge, previewing our new AI Documentation Assistant, sharing a revamped documentation site, and highlighting recordings from the Sixth Chameleon User Meeting along with upcoming community events at NSDI '26.

MCP-enabled computer-use agents are proliferating faster than our ability to evaluate them — and most existing benchmarks depend on commercial APIs that get deprecated without notice. OpenMCP is an open-source, fully self-hosted benchmarking harness built by NYU researchers that lets anyone reproducibly evaluate MCP agents across diverse hardware, from H100 datacenter GPUs to a Raspberry Pi 5 at the edge.

A PhD student selected through the Reproducibility Ambassador program funded by the NSF REPETO project is heading to NSDI '26 to share how researchers can package and reproduce their experiments using Chameleon and Trovi. Join the BoF sessions on May 4th and May 5th to see it in action.

Chameleon has supported artifact evaluations at more than 30 events across 16 major HPC and systems conferences. This guide distills those lessons into practical advice for AE organizers: how to plan hardware access, structure author and reviewer workflows, and keep reproducible artifacts alive after the evaluation closes.

This month we're highlighting the last chance to register for the Sixth Chameleon User Meeting, a new webinar recording from UTEP's MINCER team, platform updates including multi-instance GPU support, new cloud traces, switch performance improvements, and several testbed usability enhancements.