backport: batch 2 of migratewallet RPC#7277

Draft

knst wants to merge 17 commits intodashpay:developfrom

knst:bp-descriptor-migrate-2

Commits on Apr 7, 2026

Merge bitcoin/bitcoin#19602: wallet: Migrate legacy wallets to descriptor wallets

achow101
authored and
knst
committed
Merge bitcoin/bitcoin#26910: wallet: migrate wallet, exit early if no legacy data exist

achow101
authored and
knst
committed
Merge bitcoin/bitcoin#26761: wallet: fully migrate address book entries for watchonly/solvable wallets

achow101
authored and
knst
committed
Merge bitcoin/bitcoin#26594: wallet: Avoid a segfault in migratewallet failure cleanup

fanquake
authored and
knst
committed
Merge bitcoin/bitcoin#26595: wallet: be able to specify a wallet name and passphrase to migratewallet

fanquake
authored and
knst
committed
Merge bitcoin/bitcoin#28257: test: check backup from `migratewallet` can be successfully restored

fanquake
authored and
knst
committed
fix: advance active pkh() descriptor past the legacy counters
knst
committed
fix: protection belt for more than 1 account for legacy wallets
knst
committed
test: check mnemonic is set correctly for migrated wallet
knst
committed
fix: loosen condition about P2PK / P2PKH scripts for non-hd imported keys
knst
committed

Commits on Apr 9, 2026