July 2026 Cumulative Updates for Dynamics 365 Business Central
July 2026 cumulative updates are available for Dynamics 365 Business Central across multiple release waves (28.3, 27.9, and 26.15). Online customers will be automatically upgraded to version 28.3 and should verify compatibility with customizations before applying updates.
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"Online customers will automatically be upgraded to version 28.3 over the coming days/weeks"
Key points
- Three cumulative updates released for different release waves and versions
- Online customers automatically upgrade to version 28.3 with email notification
- On-premises customers must manually apply updates after confirming readiness
- Partners should help assess implementation compatibility before upgrading
Quotes
- “Online customers will automatically be upgraded to version 28.3 over the coming days/weeks” (Clarifies that online customers receive automatic updates without manual intervention)
- “Before applying the updates, you should confirm that your implementation is ready for the upgrade and ensure compatibility with your modifications.” (Highlights the critical pre-upgrade validation needed to avoid breaking customizations)
Context
- Features: cumulative updates, automatic online upgrades, on-premises deployment, version 28.3, version 27.9, version 26.15
- Versions: 28.3, 27.9, 26.15, 2026 Release Wave 1, 2025 Release Wave 2, 2025 Release Wave 1
Source: DvlprLife, community blog. Summary, key points and quotes are derived (CONTENT-NOTICE.md); read the original for the full text.