How do I verify a bug fix actually worked?

Check the field data per version: confirm the issue's occurrences stopped on the fixed build, and that no new crash appeared (no regression), the field is the truth, not that the fix builds. Verifying a fix means confirming two things in the real world: the target issue is actually resolved (its occurrences dropped or stopped on the fixed build, measured in the field where real players hit it), and the fix did not introduce a regression (no new crash appeared on the fixed build that was not there before). Both require per-version field data: you compare the fixed build against the previous one. A fix that builds or that you cannot reproduce locally is not verified, it might not work for the field conditions players hit, or might have caused a regression. Bugnet tracks crashes per version, so after a fix you can confirm the target issue stopped on the fixed build (it worked) and watch for any new crash (a regression), giving you real-world verification rather than the false confidence of assuming.

How do I verify a fix I can't reproduce?

Verify it in the field: track per version whether the issue's occurrences stop on the build with your fix, the field data showing the issue gone confirms the fix worked, even though you could not reproduce it. When you cannot reproduce an issue, you cannot verify a fix against a local reproduction, but you can verify in the field, by whether the issue actually stops for real players. Ship the fix and track per version whether the issue's occurrences stop on that build (comparing against prior builds), and confirm over enough data (especially for rare issues, which need exposure to confirm). If the issue stopped, the fix worked, if it keeps occurring, it did not. Bugnet tracks each issue's occurrences per version, so a fix you could not verify locally is verified by the field data, you see whether the issue stops on the fixed build, confirming the fix worked for the players who hit it, turning field data into the verification that local testing could not provide for an unreproducible issue.

Why is verifying fixes in the field important?

Because the field is where the real conditions are, a fix can pass local testing but fail for the device/conditions players hit, or introduce a regression you do not see locally, so field verification confirms it actually worked. Local testing cannot fully replicate the conditions players experience, so a fix that seems to work locally might not work (or might cause new problems) in the field. The reasons: real conditions differ (a fix tested locally might not work for the field conditions that caused the issue, especially for device/condition-specific bugs you could not reproduce), fixes can introduce regressions you do not see locally (which only surface in the field), and the issue might persist (if the fix was incomplete or the diagnosis wrong). The field is the ground truth, where the issue happened and where the fix must work. Bugnet tracks crashes per version, so you can confirm in the field that each fix resolved its target issue and did not cause a regression, giving you the definitive verification that your fixes actually worked, catching fixes that did not work or caused new problems, which local testing would miss.

Ways to Verify a Fix

Quick answer: Confirm in the field per version that the issue stopped on the fixed build, watch for any new crash the fix introduced, and confirm over enough data for rare issues, the field is the truth, not that the fix builds.

A fix is not done until you confirm it worked. Here are the best ways to verify a fix.

Confirm the Issue Stopped Per Version

Verify a fix by confirming in the field per version that the issue's occurrences stopped on the build with your fix. A fix that builds and seemed right is not confirmed until the field data shows the issue gone for real players.

Bugnet tracks the issue per version, so after the fix you can confirm its occurrences stopped on the fixed build in the field, verifying the fix actually worked rather than assuming.

Watch for Regressions From the Fix

Verify a fix by watching for any new crash it introduced, since a fix is a change that can cause its own regression. Confirm the issue is resolved and no new problem appeared on the fixed build.

Bugnet tracks crashes per version, so after a fix you can watch for any new crash the fix introduced, catching a fix-caused regression fast, so a fix does not silently break something else.

Confirm Over Enough Data for Rare Issues

Verify a fix by confirming over enough data and versions, especially for a rare or recurring issue, give the fixed build enough exposure for the issue to have appeared if unfixed, then the continued absence confirms the fix held.

Bugnet's per-version tracking accumulates field data over time, so you can confirm the fix held over enough players and versions, reliable verification especially for rare issues that need exposure to confirm.

Verify a fix by confirming in the field per version that the issue stopped on the fixed build, watching for any regression the fix introduced, and confirming over enough data for rare issues. The field is the truth.