Summary of new Japanese Era updates - KB4469068

Applies to: Windows 10, version 1809Windows 10, version 1803Windows 10 Version 1607 More

Summary (update on 11/8/2018)


Japanese Era Update

On May 1, 2019, a new Japanese era and associated calendar will begin. Microsoft is preparing for these changes and plans to ship updates in each monthly rollup release. These updates are intended to help developers to test and verify how the new Japanese Era changes may impact their apps. Please note that these updates do not include artifacts (such as fonts) associated with the new Japanese Era. Artifacts such as fonts will be updated after the announcement of the name of the new Japanese Era.

Windows operating system updates


The following table provides a lists of Microsoft Knowledge Base articles by Windows version for Japanese Era updates as of this posting. We will offer additional new Japanese Era updates for Windows operating systems as they become available and will update this article accordingly. 

October 2018 Windows operating system updates

Knowledge Base Article (KB) Windows version
KB 4462933

Windows 10, version 1803 and

Windows Server, version 1803

KB 4462928

Windows 10, version 1607 and

Windows Server 2016

KB 4462927

Windows 7 SP1 and

Windows Server 2008 R2 SP1

 

November 2018 Windows operating system updates

Knowledge Base Article (KB) Windows version
KB 4467682

Windows 10, version 1803 and 

Windows Server, version 1803

KB 4467681 Windows 10, version 1709 
KB 4467699

Windows 10, version 1703 and 

Windows Server, version 1703

KB 4467684

Windows 10, version 1607 and 

Windows Server 2016

 

Japanese Era supported Products


Microsoft plans to support the following list of Windows products for Japanese Era update.

Windows Client

Windows 10, version 1809

Windows 10 Enterprise LTSC 2019

Windows 10, version 1803

Windows 10, version 1709

Windows 10, version 1703

Windows 10, version 1607

Windows 10 Enterprise LTSB 2016

Windows 10 Enterprise LTSB 2015

Windows 8.1

Windows 7 SP1

 

Windows Server

Windows Server 2019

Windows Server, SAC version 1809

Windows Server, SAC version 1803

Windows Server, SAC version 1709

Windows Server 2016

Windows Server 2012 R2

Windows Server 2012

Windows Server 2008 R2 SP1

Windows Server 2008 SP2

 

Windows Embedded & IoT

Windows 10 IoT Core, SAC version 1809

Windows 10 IoT Core, LTSC version 1809

Windows 10 IoT Enterprise, SAC version 1809

Windows 10 IoT Enterprise LTSC 2019

Windows 10 IoT Core, SAC version 1803

Windows 10 IoT Enterprise, SAC version 1803

Windows 10 IoT Core, SAC version 1709

Windows 10 IoT Enterprise, SAC version 1709

Windows 10 IoT Core, SAC version 1703

Windows 10 IoT Enterprise, SAC version 1703

Windows 10 IoT Core, SAC version 1607

Windows 10 IoT Enterprise, SAC version 1607

Windows 10 IoT Enterprise LTSB 2016

Windows 10 IoT Enterprise LTSB 2015

Windows Embedded 8.1 Industry Enterprise

Windows Embedded 8.1 Industry Pro

Windows Embedded 8.1 Pro

Windows Server 2012 R2 for Embedded Systems

Windows Embedded 8 Standard

Windows Server 2012 for Embedded Systems

Windows Embedded POSReady 7

Windows Embedded Standard 7 SP 1

Windows Embedded Compact 2013

Windows Embedded Compact 7

 

How to test the new Japanese Era on Windows


To make it easier for customers and partners to prepare for the Japan Era change, customers are able to control when they add the placeholder registry entry to their systems – choosing the timing that meets their needs. Currently, the placeholder registry is supported for:

  • Windows 10, version 1809
  • Windows 10, version 1803
  • Windows 10, version 1607
  • Windows 7 SP1/Windows Server 2008 R2 SP1

Recommended test scenarios to cover:

  1. Anticipated Era Transition Testing

This test scenario is to verify LOB applications work when the new era transition is set to a future date.

Let’s say that the transition date is the anticipated to be 1 May 2019, so the current era is 平成 (Heisei).
Set the following registry key under [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nls\Calendars\Japanese\Eras] registry path - "2019 05 01"="新元号_新_TestEra_E"

  1. Active Era Transition Testing

This test scenario is to verify LOB works when the current era is set to the new era.
Let’s say that the calendar transition has already occurred on 1 May 2018 and the current era is 新元号(TestEra).
Set the following registry key under [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nls\Calendars\Japanese\Eras] registry path -"2018 05 01"="新元号_新_TestEra_E"

Test Setup:

  1. Update registry setting to enable different test scenarios for your LOB applications around new Japanese era change:

Add the entry below under [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nls\Calendars\Japanese\Eras] registry path
"2019 05 01"="新元号_新_TestEra_E"

Note: It is always recommended to backup your registry settings before making changes to be able to restore registry settings.

  1. To test the Japanese Calendar
    1. Launch Control Panel
    2. Sort by Category. Under Clock and Region, launch Region setting 
    3. In Region setting dialog box:
  • Change Format to "Japanese (Japan)"
  • Click on Additional Settings… button to launch the Customize Format setting

4. In Customize Format dialog box

  • Click the Date tab.
  • Change Calendar Type to "和暦".
  • Click OK to apply the setting.

Additional resources


  • Using the Registry to Test the New Japanese Era on Windows - August 2018 blog.
  • Windows 10, version 1803 September 2018 update had enabled opt-in option for customers to test their applications with a placeholder registry. (KB4458469)