Println Debugging Done Right - The JetBrains Blog

IntelliJ IDEA 2026.2 enhances its logpoints, positioning them as a more capable and faster alternative to traditional println debugging for developers and AI coding agents. Logpoints can log expressions without modifying source code and support conditions, stack traces, hit counters, caller filters, grouping, persistence, and navigation from console output back to the originating code. The release replaces debugger-side evaluation for eligible conditional and logging breakpoints with direct code instrumentation, avoiding repeated application suspension and delivering internal benchmark improvements of roughly 30 times in hot or timing-sensitive paths. New interfaces simplify manual logpoint creation, while bundled agent skills allow AI assistants used through the IDE, terminal, or external tools to create, manage, run, interpret, and clean up their own logpoints without altering a developer’s existing breakpoints. These features work in local and remote JVM debugging sessions and aim to make lightweight logging reliable for diagnosing issues such as timeouts, race conditions, and latency-sensitive failures.

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