Why did my fix make things worse?

Because the fix introduced its own regression, a change meant to solve one problem broke something else, which is a normal risk of any code change. A fix is a code change, and any change can have unintended effects: the fix might have correctly addressed the original issue but introduced a new bug (a side effect in the changed code, an interaction with other code, a case the fix didn't account for), or it might have addressed the symptom while creating a worse problem, or it might have been based on a wrong diagnosis (fixing the wrong thing and destabilizing the code). New code, even fix code, is the least-tested code, so its problems surface once it ships. This is why fixes need verification: you can't assume a fix helped just because it builds and addresses the target, you have to confirm it actually improved things in the field without introducing a regression. To find what your fix broke, compare the build with the fix against the one before it: per-version data shows whether the original issue improved and what new crash or problem appeared on the fix's build, the new issue is the regression your fix introduced. So your fix made things worse because it introduced its own regression (a side effect, an unhandled case, or a misdiagnosis), a normal risk of code changes that's why fixes must be verified, not assumed. Bugnet tracks crashes per version, so you can compare before and after your fix, confirming whether it helped the original issue and revealing the new problem it introduced (with its stack trace and context), so you can roll back or correct the fix and verify per version that both the original issue and the regression are resolved, catching a fix-gone-wrong fast rather than discovering it from players.

How do I verify a fix actually worked?

Check per-version field data after the fix ships: confirm the target issue dropped on the fixed build, and that no new crash or problem appeared, a fix is verified only when the field data shows it helped without introducing a regression. Verifying a fix means confirming two things in the real world (not just that it builds): (1) the target issue is actually resolved, the crash or bug you fixed dropped or disappeared on the fixed build, measured in the field where real players hit it, and (2) the fix didn't introduce a regression, no new crash or problem appeared on the fixed build that wasn't there before. Both require per-version field data: you compare the fixed build against the previous one, the target issue's crashes should drop (confirming the fix worked) and no new high-impact crashes should appear (confirming no regression). Verifying only that the code builds or that you can't reproduce the issue locally is insufficient, the fix might not work for the field conditions players hit, or might have introduced a regression you don't see locally. The field, per version, is the truth. So you verify a fix actually worked by checking per-version field data after it ships, the target issue dropped on the fixed build (it worked) and no new problem appeared (no regression), both confirmed in the real player data. Bugnet tracks crashes per version, so after a fix ships you can confirm the target crash dropped on the new build (the fix worked) and watch for any new crashes the fix might have introduced (catching a regression), verifying the fix actually improved things in the field rather than assuming, the verification that catches a fix that didn't work or made things worse, which assuming would miss.

How do I stop my fixes from causing regressions?

Make targeted fixes, test the change, and always verify per version after shipping, so a fix that introduces a regression is caught immediately rather than compounding the problem. You can't eliminate the risk that a fix introduces a regression (any change carries it), but you can minimize it and catch regressions fast. First, make targeted fixes: fix the actual root cause (diagnosed from captured context, not guessed) with a focused change, rather than a broad or speculative one, a targeted fix to the right cause is less likely to break other things than a sweeping change or a wrong-diagnosis fix. Second, test the change: test that the fix resolves the issue and doesn't break related functionality (especially the areas the fix touches), on real devices where regressions hide on your dev machine. Third, and most important, verify per version after shipping: track the fixed build against the previous one, confirming the target issue dropped and no new crash appeared, so if the fix did introduce a regression, you catch it within minutes (the new crash on the fixed build) and can roll back or correct it before it spreads, rather than the regression compounding the original problem. Fourth, fix from good diagnosis: a fix based on the captured stack trace and conditions (the real cause) is more likely correct than one based on a guess, reducing the chance of a misdiagnosis-driven regression. So you stop fixes from causing regressions by making targeted fixes to the right cause, testing the change, and always verifying per version after shipping (catching any regression fast). The verification is the safety net, even a careful fix can regress, so confirming per version that it helped without breaking anything is what catches the regression before it does damage. Bugnet's per-version crash tracking and full context support this, the context helps you diagnose and fix the right cause (reducing misdiagnosis regressions), and the per-version tracking verifies each fix (target issue dropped, no new crash), so a fix that introduces a regression is caught immediately, turning fixes from a roll of the dice into a verified, safe improvement.

What to Do When a Fix Makes Things Worse

Quick answer: Compare the build with the fix against the one before it to see whether the fix introduced a new crash, then roll back or correct the fix, and verify per version that both the original and new issues are resolved.

A fix that makes things worse is a special frustration, you tried to help and broke something else. The cause is a regression the fix introduced, and per-version comparison reveals it. Here is what to do when a fix makes things worse.

Compare Before and After the Fix

Confirm what the fix did by comparing the build with the fix against the one before it. Check per-version data: did the original issue improve, and did a new crash or problem appear on the fix's build? A fix that makes things worse introduced a new issue, which the before-and-after comparison exposes.

Bugnet tracks crashes per version, so you can compare the build with your fix against the previous one, seeing whether the original issue improved and what new issue the fix introduced. That comparison is how you confirm the fix made things worse and identify exactly what it broke, rather than just knowing things got worse.

Roll Back or Correct the Fix

Decide how to handle it: if the fix's new problem is worse than the original issue, roll back the fix (returning to the prior state) while you rework it. If you can quickly correct the fix (address what it broke while keeping its benefit), do that. The relative severity guides the choice.

Bugnet's per-version data and context show the severity of both the original issue and the fix's new problem, informing whether to roll back the fix or correct it. Seeing what the fix broke (its stack trace and conditions) lets you either revert cleanly or correct the specific regression it introduced, then verify the result.

Verify Both Issues Are Resolved

Verify the final state per version: the original issue fixed and the new problem the fix introduced also resolved, not one traded for the other. A fix isn't done until the field data confirms both the target issue and any regression it caused are gone, which only per-version verification shows.

Bugnet tracks per version, so you can confirm the corrected fix resolved the original issue without the new problem, both gone in the field data. This closes the loop properly, you verify the fix actually improved things (original issue fixed, no new regression) rather than assuming, which is exactly the assumption that let the fix make things worse in the first place.

When a fix makes things worse, compare the build with the fix against the one before to see what it broke, roll back or correct the fix, and verify per version that both the original and new issues are resolved. A fix that makes things worse introduced its own regression.