1# Bundle Management Subsystem Changelog
2## cl.bundlemanager.1 schema in the module.json File Changed
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4In the **module.json** file, the **name** attributes of the **module**, **ability**, and **extensionAbility** fields must start with a letter and contain only letters, digits, underscores (_), and dots (.).
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6**Change Impact**
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8After an update to the new SDK version, the build fails if the **name** attributes of these fields do not meet the preceding requirements.
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10**Key API/Component Changes**
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12In the **module.json** file, the **name** attributes of the **module**, **ability**, and **extensionAbility** fields must start with a letter and contain only letters, digits, underscores (_), and dots (.).
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14**Adaptation Guide**
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16Modify the **name** attributes for these fields accordingly to the new requirements.