The 8.1.0-18 system update was released on July 24, 2014.
- Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience.
The HTTP-module update appears to be just a rebuild for the latest FIRM revision(from 8.0.0-18). The previous version had "[SDK+NINTENDO:Firmware-02_44_05]" in the NCCH plain region(old pre-release revision), the current version had that updated to "*_06]"(which matches the current FIRM revision). Note that there's other system-modules which were updated with 8.0.0-18, which were built for FIRM revision <6.
- System update report