The company is taking measures to ensure that Windows 10 computers will always be able to upgrade automatically.
The feature dubbed as Reserved Storage will be introduced with Windows 10 Build 1903 (April 2019 update).
This will be in addition to over 20GB of storage space that the OS version usually takes for storage.
However, the reserved storage will not apply to those updating to 19H1 from a previous version.
source: www.techworm.net
