This non-security update includes improvements and fixes that were a part of KB4480968 (released January 8, 2019) and also includes these new quality improvements as a preview of the next Monthly Rollup update:
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Ensures that protections against an additional subclass of speculative execution side-channel vulnerability known as Speculative Store Bypass (CVE-2018-3639) are reported accurately after running the Get-SpeculationControlSettings PowerShell Script.
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Addresses an issue with the Japanese date format that wrongly adds a single digit with “0” to the year value.
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Addresses an issue with the Japanese date format that causes the .NET parser to stop working.
- Addresses an issue that causes GetCalendarInfo() to return the wrong current era when the New Japanese Era is enabled.
- Addresses an issue that causes the abbreviated Japanese era name to not refer to the ligature.
- Addresses an issue that may prevent some applications from displaying the Help (F1) window correctly.
- Addresses an issue in the Universal CRT that sometimes causes the AMD64-specific implementation of FMOD to return an incorrect result when given very large inputs. FMOD is frequently used to implement the modulo operator in JavaScript and Python implementations that use the Universal C runtime.
- Addresses an issue that causes the GetCalendarInfo function to return a wrong value for the Japanese Era. For more information, see KB4469068.
- Addresses an issue that fails to recognize the first character as the abbreviation for the Japanese Era name. For more information, see KB4469068.
- Supports Japanese Era registry settings for .NET 3.5. For more information, see KB4469068.