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Beta as of Kotlin 2.4.20. Measured on :shared:linkDebugFrameworkIosSimulatorArm64 with a one-line source edit per run: link time drops from ~11.1s to ~7.9s mean (n=8/7), with tighter variance. Costs one slower priming link and ~22MB under shared/build/kotlin-native-ic-cache. Debug binaries only - release links are unaffected. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014VYXf6KbfXuDuHV4uy3id8
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Summary
Sets
kotlin.incremental.native=trueingradle.properties. This enables incremental compilation of klib artifacts — the klib→binary step of Kotlin/Native — which is Beta as of Kotlin 2.4.20 (Experimental since 1.9.20), and which JetBrains plan to enable by default in a future release.Measured locally on
:shared:linkDebugFrameworkIosSimulatorArm64(warm daemon, one small source edit before each run, per-task times from Gradle--profile, two interleaved off/on rounds):~28% off the link task, with tighter variance. The klib compile step (~2.5s) is unchanged, as expected.
Costs:
shared/build/kotlin-native-ic-cache/debugFramework, per binary, cleared bycleanKotlinNativeLinkgates the IC flags behind!optimized, so release/TestFlight links are unaffectedTest plan
./gradlew :shared:linkDebugFrameworkIosSimulatorArm64green with the flag setshared/build/kotlin-native-ic-cache/debugFramework, 22MB)🤖 Generated with Claude Code
https://claude.ai/code/session_014VYXf6KbfXuDuHV4uy3id8