Training
Module
Perform custom updates in a Power Apps canvas app - Training
With some Power Apps canvas apps, a form isn't the solution. This module focuses on how to perform custom updates when your data isn't in a form.
This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
Beginning with Windows Installer version 3.0, patch authors can use the product baseline cached by the installer to more easily service applications with smaller delta patches. In many cases, a delta patch that delivers servicing information to an application can be significantly smaller than a full-file patch or installation package that delivers the same information.
Windows Installer 2.0: Not supported. Beginning with Windows Installer 3.0, the installer selectively saves baseline information about files when they are updated.
Windows Installer provides three methods for updating and servicing applications: small updates, minor upgrades, and major upgrades. A small update is also referred to as a quick fix engineering (QFE) update, and a minor upgrade is also referred to as a service pack (SP) update. A typical major upgrade removes a previous application and installs a new application. Windows Installer can deliver servicing information to applications as an installation package (.msi file) or as a patch package (.msp file).
A Windows Installer patch package that delivers servicing information for a small update or minor upgrade is generally much smaller than the equivalent installation package that delivers the same servicing information. It is recommended that patch packages be used for the distribution of small and minor upgrades. It is recommended that an installation package be used for the distribution of a major upgrade.
Windows Installer patches (.msp files) can be generated from either full files or from file differences (also called file deltas.) A Windows Installer patch generated from file deltas can be much smaller than the equivalent full-file patch. All versions of the Windows Installer can use both full-file patches or delta patches.
Beginning with Windows Installer version 3.0, the installer selectively saves baseline information about files when they are updated. Information about the original base application (the RTM version) and the most recent minor upgrade (service pack) are saved in a private location when the application is installed or receives a minor upgrade.
The installer does the following to minimize the size of the baseline cache:
Beginning with Windows Installer version 3.0, the installer can use the baseline cache when patches are applied to the application. The baseline information can be used to apply a delta patch or to revert a file to a previous version during a patch uninstall. This can enable patch authors to benefit from smaller delta patches. If the installer finds that the delta patch cannot be applied to the target file, the installer can attempt to use a file saved in the baseline cache as a starting point. The installer only resorts to requesting the original installation source after trying all the possibilities in the cache.
Adherence to the following guidelines can help patch authors use Windows Installer version 3.0 patches and the baseline cache to create smaller delta patches:
Training
Module
Perform custom updates in a Power Apps canvas app - Training
With some Power Apps canvas apps, a form isn't the solution. This module focuses on how to perform custom updates when your data isn't in a form.