How do I prevent bugs that only appear in the release build?

Test and monitor what you actually ship, not a proxy for it. Always test the actual release build before shipping, not just the editor or debug build, since they're compiled, optimized, and stripped differently and a bug present only in the release build is invisible if you only test the editor, this is the most common reason release-only bugs slip through. Watch specifically for issues that only appear in optimized builds, timing-dependent bugs, code stripped that was needed, optimizer assumptions exposed, by testing release-build behavior rather than assuming it matches the editor. And capture crashes from the field with version and build context, since some release-only bugs depend on real player conditions even the release build locally might not reproduce. The throughline is testing and monitoring the build players run, not a different one.

Why does my game work in the editor but have bugs in the build?

Because the editor and the release build are genuinely different things. The release build is compiled and optimized, debug information and unused code may be stripped, timing and execution can differ, and sometimes different code paths run, whereas the editor runs an unoptimized, instrumented, development-friendly version. These differences can surface bugs that the editor hides: an optimizer can expose an assumption that held in debug, stripping can remove something that was actually needed, timing-dependent bugs can appear under the build's different execution, and the editor's safety nets and slower execution can mask races. So a game can genuinely work in the editor and break in the build, not because the build is 'wrong' but because it's a different, more representative artifact, which is exactly why you must test the actual release build and capture crashes from real builds in the field.

Should I test the release build or is the editor enough?

You must test the actual release build, the editor is not enough. Players run the release build, and it differs from the editor in compilation, optimization, stripping, timing, and sometimes code paths, so an entire class of bugs exists only in the build and is invisible in the editor. Relying on editor testing alone means shipping a build you never actually validated, which is how release-only bugs reach players. Develop in the editor for speed, but always do a testing pass on the real release build before shipping, ideally on real devices, and capture crashes from the field with version context to catch the release-only bugs that depend on real player conditions. Testing the editor is convenient, but only testing what you ship prevents release-build bugs.

How to Prevent Bugs in the Release Build

Quick answer: Test the actual release build not just the editor, watch for issues that only appear in optimized builds, and capture field crashes with version context. Release-only bugs slip through because you tested a different build.

A whole class of bugs appears only in the release build, never in the editor or debug build you develop in, because release builds are compiled, optimized, and stripped differently. Preventing them means testing what you actually ship. Here's how to prevent bugs in the release build.

Always Test the Actual Release Build

The most common reason release-build bugs slip through is that you tested the editor or debug build instead, a different thing from what players run. So always test the actual release build before shipping, since behavior, timing, and even which code runs can differ, and a bug present only in the release build is invisible if you only test the editor.

Bugnet captures crashes with version and build context, so release-build crashes are identifiable. Testing the actual release build is the foundational prevention for release-only bugs, because you can't catch a bug in the editor that only exists in the build you ship.

Watch for Issues That Only Appear in Optimized Builds

Release builds are optimized, stripped of debug info, and sometimes use different code paths, which can surface bugs the unoptimized editor build hides, timing-dependent issues, code stripped that was needed, optimizer assumptions exposed. So watch specifically for these classes of issue, testing release-build behavior rather than assuming it matches the editor.

Bugnet captures stack traces and context from real release builds, so optimization-related crashes surface. Watching for optimized-build-specific issues prevents the subtle bugs that appear only when the release build's compilation and optimization differ from your development environment.

Capture Crashes From the Field With Version Context

Some release-build bugs only appear under real player conditions, so capture crashes from the field with version and build context. This catches the release-only bugs that even testing the release build locally might miss, because they depend on real devices and conditions, letting you fix them fast.

Bugnet captures crashes from real players with full version context, so release-build field bugs are caught. So prevent release-build bugs by always testing the actual release build, watching for optimized-build issues, and capturing field crashes with version context, ensuring you test and monitor what you actually ship.

Always test the actual release build, watch for issues that only appear in optimized builds, and capture field crashes with version context. Release-only bugs slip through because you tested a different build than you shipped.