1# Bundle Manager Subsystem Changelog
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3## cl.bundlemanager.1 Encrypted Applications Using Debug-Type Signing Certificates or Encrypted Applications of the Debug Type Cannot Be Installed
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5**Access Level**
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7Public API
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9**Reason for Change**
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11Encrypted applications using debug-type signing certificates or encrypted applications of the debugging type have security problems, causing information leakage.
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13**Change Impact**
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15This change is a non-compatible change.
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17In normal cases, there is no impact. Applications are encrypted before being released. Locally packaged applications are not encrypted.
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19Before change:
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21Encrypted applications with debug-type signing certificates or encrypted applications of the debug type can be successfully installed.
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23After change:
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25Encrypted applications with debug-type signing certificates or encrypted applications of the debug type cannot be installed.
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27
28**Start API Level**
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3013
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32**Change Since**
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34OpenHarmony SDK 5.0.0.45
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36**Key API/Component Changes**
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38N/A
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40**Adaptation Guide**
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421. For an encrypted application with a debug-type signing certificate, sign the application using a release-type certificate before installing it.
432. For an encrypted application of the debugging type, change it to a non-debugging type before installing it.
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