1# Event Notification Subsystem ChangeLog
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3## cl.ans.1 Permission Change of isRemoveAllowed
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5**Access Level**
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7System API
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9**Reason for Change**
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11Permission control is required for the **isRemoveAllowed** attribute of notifications.
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13**Change Impact**
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15This change is a non-compatible change.
16To use the **isRemoveAllowed** attribute, you must first apply for **ohos.permission.SET_UNREMOVABLE_NOTIFICATION** permission.
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18**API Level**
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2011
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22**Change Since**
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24Openharmony SDK 4.1.5.5
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26**Key API/Component Changes**
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28isRemoveAllowed (ohos.permission.SET_UNREMOVABLE_NOTIFICATION)
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30**Adaptation Guide**
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33Apply for the **ohos.permission.SET_UNREMOVABLE_NOTIFICATION** permission before using the **isRemoveAllowed** attribute.
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