- Download updates from Lifecycle Services (LCS) : https://docs.microsoft.com/en-us/dynamics365/fin-ops-core/dev-itpro/migration-upgrade/download-hotfix-lcs
- Apply updates to cloud environments : https://docs.microsoft.com/en-us/dynamics365/fin-ops-core/dev-itpro/deployment/apply-deployable-package-system
- Install metadata hotfixes in development environments : https://docs.microsoft.com/en-us/dynamics365/fin-ops-core/dev-itpro/migration-upgrade/install-metadata-hotfix-package
- Patch SQL Server Reporting Services (SSRS) in one-box environments : https://docs.microsoft.com/en-us/dynamics365/fin-ops-core/dev-itpro/migration-upgrade/patch-reporting-service-environment
- Update the Visual Studio development tools : https://docs.microsoft.com/en-us/dynamics365/fin-ops-core/dev-itpro/dev-tools/update-development-tools
AX – D365FO – Hotfixes
AX / Dynamics 365 For Finance and Operations blog 