What is Dynamic Partition in Android? RetroFitting / Super Partition
Explained what is Retrofitting or Dynamic Partition in Android - Custom ROMs
Dynamic partitions are a userspace partitioning system for Android. Using this partitioning system, you can create, resize, or destroy partitions during over-the-air (OTA) updates. With dynamic partitions, vendors no longer have to worry about the individual sizes of partitions such as system, vendor, and product. Instead, the device allocates a super partition, and sub-partitions can be sized dynamically within it. Individual partition images no longer have to leave empty space for future OTAs. Instead, the remaining free space in super is available for all dynamic partitions.
Full Article: https://source.android.com/docs/core/...