1# ArkUI Subsystem Changelog
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3## cl.arkui.1 Removal of Padding Effect from List Scrollbar Margin
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5**Change Impact**
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7In versions earlier than API version 10, the scrollbar margin in the **\<List>** component is affected by padding. When padding is set for the component, the space of the scrollbar is squeezed inward.
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9Since API version 10, the scrollbar margin in the **\<List>** component fixed at 4 vp, not affected by padding.
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11## cl.arkui.2 Change of Space Reserved for Scrollbar Top and Bottom
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13**Change Impact**
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15Before change, the space reserved for the top and bottom of a vertical scrollbar (or left and right of a horizontal scrollbar) is fixed, as a result of which the scrollbar may be cut by the rounded corners of the scrollable container component.
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17After change, the space reserved for the top and bottom of a vertical scrollbar (or left and right of a horizontal scrollbar) is dynamically calculated based on the rounded corner radius of the scrollable container component. For example, when the rounded corner radius of a **\<Scroll>** component is 0, the space reserved for the top and bottom of its vertical scrollbar is 0, which means that the scrollbar can scroll to the bottom of the **\<Scroll>** component.
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