May 12, 2026—KB5087541 (OS Build 25398.2330)

May 12, 2026—KB5087541 OS Build 25398.2330 This cumulative update for Windows Server, version 23H2 KB5087541, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security updates,...

CLSA-2023-1688677210 Update of tzdata

Upgrade to tzdata-2023c code and data are identical to 2023a - Egypt now uses DST again, from April through October. - This year Morocco springs forward April 23, not April 30. - Palestine delays the start of DST this year. - Much of Greenland still uses DST from 2024 on. - America/Yellowknife...

CLSA-2023-1688673886 Update of tzdata

Upgrade to tzdata-2023c code and data are identical to 2023a - Egypt now uses DST again, from April through October. - This year Morocco springs forward April 23, not April 30. - Palestine delays the start of DST this year. - Much of Greenland still uses DST from 2024 on. - America/Yellowknife...