Pace 5.4.1 May 2026

The headline for this release is speed. We noticed that during heavy workloads, memory usage was spiking higher than necessary.

Beyond the under-the-hood work, we’ve made a few tweaks to the user experience based on your feature requests:

The FAA rarely stands still. While PACE 5.4.1 is the current standard, whispers in the regulatory community suggest a "PACE 5.5" is in early drafting. This future revision is expected to address: pace 5.4.1

Until then, compliance with PACE 5.4.1 remains the gold standard for due diligence.

If the FAA has announced an ODA Systems Evaluation (OSE) or a DER Performance Review, they will be auditing against the current PACE 5.4.1. Here is your 5-step readiness checklist: The headline for this release is speed

External auditors no longer need to request weeks of screenshots. With the "Auditor View" in 5.4.1, you can grant temporary, read-only access to specific control evidence. Auditors can pull their own reports, reducing internal staff hours by an average of 40%.

If you are migrating from 5.3.x or the initial 5.4.0, here are the features that justify the upgrade to 5.4.1. Until then, compliance with PACE 5

The most recent revision to this section did not occur in a vacuum. Historically, the FAA revised PACE in response to high-profile certification failures. Industry experts point to two major catalysts for the latest PACE 5.4.1 update:

The current version of PACE 5.4.1 emphasizes "risk-based oversight"—meaning FAA managers must prioritize audits of high-risk delegated functions over low-risk administrative checks.