SUSE-RU-2026:2278-1: important: Recommended update for timezone

[SLE-UPDATES]

# Recommended update for timezone

Announcement ID: SUSE-RU-2026:2278-1  
Release Date: 2026-06-05T09:00:20Z  
Rating: important  
References:

  * bsc#1264965

  
Affected Products:

  * Basesystem Module 15-SP7
  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that has one fix can now be installed.

## Description:

This update for timezone fixes the following issues:

  * Update to 2026b:
    * British Columbia moved to permanent -07 on 2026-03-09. (bsc#1264965)
    * Some more overflow bugs have been fixed in zic.
  * Update to 2026a:
    * Moldova has used EU transition times since 2022.
    * The "right" TZif files are no longer installed by default.
    * -DTZ_RUNTIME_LEAPS=0 disables runtime support for leap seconds.
    * TZif files are no longer limited to 50 bytes of abbreviations.
    * zic is no longer limited to 50 leap seconds.
    * Several integer overflow bugs have been fixed.
  * Update to 2025c:
    * Update Baja California DST rules in 1953, 1961-1975
    * An unset TZ is no longer invalid when /etc/localtime is missing, and is abbreviated "UTC" not "-00". This reverts to 2024b behavior
    * tzset etc. are now more cautious about questionable TZ settings.
    * tzset etc. now treat ' ' like '_' in time zone abbreviations
    * tzfree now preserves errno, consistently with POSIX.1-2024 "free".
    * zic has new options inspired by FreeBSD.
    * multiple changes visible to developers
  * Use "REDO=posix_right" to keep installing "right" TZif files.

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-2278=1

  * Basesystem Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-2278=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2278=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2278=1

## Package List:

  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
    * timezone-2026b-150600.91.9.1
    * timezone-debugsource-2026b-150600.91.9.1
    * timezone-debuginfo-2026b-150600.91.9.1
  * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * timezone-2026b-150600.91.9.1
    * timezone-debugsource-2026b-150600.91.9.1
    * timezone-debuginfo-2026b-150600.91.9.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * timezone-2026b-150600.91.9.1
    * timezone-debugsource-2026b-150600.91.9.1
    * timezone-debuginfo-2026b-150600.91.9.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * timezone-2026b-150600.91.9.1
    * timezone-debugsource-2026b-150600.91.9.1
    * timezone-debuginfo-2026b-150600.91.9.1

## References:

  * https://bugzilla.suse.com/show_bug.cgi?id=1264965

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