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The Old3DS+New3DS 10.0.0-27 system update was released on September 8, 2015. This Old3DS update was released for the following regions: USA, EUR, JPN, CHN, KOR, and TWN. This New3DS update was released for the following regions: USA, EUR, JPN, CHN, and KOR.

Security flaws fixed: yes, see the ARM11-kernel section here.


Official USA change-log:

  • Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience

System Titles

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Minus configmem init, exactly 4 functions were updated in the ARM11-kernel(at least one was for fixing a security issue). See here for details on that.


One of the changes was that main() was updated. Three functions(including launch_firm()) which were previously called directly are now called via a wrapper function with a funcptr parameter. As a result, the main() prologue/epilog changed. This is for temporarily relocating the stack elsewhere(same relocated-stack-addr for all func-calls), just for calling the funcptr(all registers except for r0..r3 are saved/restored before/after calling the funcptr).


No actual code/data was changed in the arm9loader.

See Also

System update report(s):