Microsoft has released April's second cumulative update for Windows 10 October 2018 Update and Windows Server 2019, bringing bug fixes and general improvements. Version 1809 usually receives its cumulative updates days after they are delivered to older Windows 10 versions, sometimes after Insider testing.

Today's Build 17763.439 (KB4501835) brings the following key changes:

Addresses an issue that prevents theCALDATETIMEstructure from handling more than four Japanese Eras. For more information, seeKB4469068.Updates the NLS registry to support the new Japanese Era. For more information, seeKB4469068.Addresses an issue that causes the DateTimePicker to display the date incorrectly in the Japanese date format. For more information, seeKB4469068.Addresses an issue that causes the Date and Time Settings control to cacheold Eras and prevents the control from refreshingwhen the time enters the new Japanese Era.For more information, seeKB4469068.Updates fonts to support the new Japanese Era.For more information, seeKB4469068.Addresses an issue that prevents an input method editor (IME) from supporting the new Japanese Era character.For more information, seeKB4469068.Addresses an issue that causes the Clock and Calendar flyout control to display theday of the week incorrectly mapped to a date in the month of the new Japanese Era. For more information, seeKB4469068.Adds alternative fonts for the new Japanese Era fonts. For more information, seeKB4469068.Enables Text-To-Speech (TTS) functionality to support new Japanese Era characters. For more information, seeKB4469068.Addresses an issue in Unified Write Filter (UWF) that prevents Hibernate Once/Resume Many (HORM) from working as expected on Unified Extensible Firmware Interface (UEFI) systems.

You can head over to Settings > Update & Security >Windows Updateand selectCheck for updates to install the latest Windows 10 cumulative update for the October 2018 Update.

Do note that there are still several known issues plaguing this Windows 10 version, including the antivirus-related problem. More details on that can be found over at the official support page.

- Earlier: Upcoming W10 Version 1903 Already Hit by Multiple Upgrade Blocks