A few things to note: - R8 is currently experimental, but is becoming default in AS 3.4 - R8 results in a decent decrease in bytecode size - R8 necessitates switching off proguard-optimize, as that config nukes the line number table even with -keepattributes LineNumberTable. Hopefully that will be fixed and optimize can be re-enabled for even more size savings. - No instability has been observed, but if any crops up I will revert
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