bitcoin/doc/release-notes-14468.md

Wallet generate RPC method deprecated

The wallet's generate RPC method has been deprecated and will be fully removed in v0.19.

generate is only used for testing. The RPC call reaches across multiple subsystems (wallet and mining), so is deprecated to simplify the wallet-node interface. Projects that are using generate for testing purposes should transition to using the generatetoaddress call, which does not require or use the wallet component. Calling generatetoaddress with an address returned by getnewaddress gives the same functionality as the old generate method.

To continue using generate in v0.18, restart bitcoind with the -deprecatedrpc=generate configuration.