GerbDiff Blog

Notes from production hardware

Posts about PCB review, diff workflows, and what we've learned building a local-first Gerber diff tool for production teams.

Thesis · May 2026

You should be diff'ing your PCBs before going to production.

Software engineering has used visual diff tools for production workflows since the 1990s. It's 2026 and hardware engineers still ship production PCBs to fab without this critical verification step. The average PCB respin in production is estimated to cost $28,000. Engineers make mistakes, but it's the release process that fails to catch those errors that is truly to blame.

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Release notes · June 2026

v2.9.2: A rendering fix for zoomed-in views

We fixed a bug in the renderer that was causing certain objects to not draw properly during changes to zoom. They now render reliably at every zoom level.

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Release notes · June 2026

v2.9.0: Manual alignment with manual offset adjustment

Driven directly by user feedback (Kudos to Dominique). When auto-alignment doesn't get your two revisions lined up, you can now type the offset instead of nudging the board across the screen one arrow-key press at a time. Plus support for more file extensions, including .gbx.

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Release notes · June 2026

v2.8.1: Summary Report generation ~4× faster

A small follow-up to v2.8.0. Three targeted changes cut Summary Report generation time by roughly 4× on real boards. A report that previously took 35 seconds now finishes in 9.

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Release notes · June 2026

v2.8.0: Summary Report progress and per-layer error handling

Two user-facing improvements to the Summary Report export, both driven by customer feedback this week. The save dialog now appears immediately when you click Export, generation runs behind a full progress overlay, and a single bad layer no longer aborts the whole report.

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More posts coming soon.