bitcoin/doc/release-notes-31583.md

Updated RPCs

• getmininginfo now returns nBits and the current target in the target field. It also returns a next object which specifies the height, nBits, difficulty, and target for the next block.
• getblock and getblockheader now return the current target in the target field
• getblockchaininfo and getchainstates now return nBits and the current target in the target field

REST interface

• GET /rest/block/<BLOCK-HASH>.json and GET /rest/headers/<BLOCK-HASH>.json now return the current target in the target field