Release notes for Miniscript support in P2WSH descriptors

Author: darosior

doc/release-notes-24148.md

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+Notable changes
+===============
+
+Wallet
+------
+
+- The `wsh()` output descriptor was extended with Miniscript support. You can import Miniscript
+  descriptors for P2WSH in a watchonly wallet to track coins, but you can't spend from them using
+  the Bitcoin Core wallet yet.
+  You can find more about Miniscript on the [reference website](https://bitcoin.sipa.be/miniscript/).
+
+
+Low-level changes
+=================
+
+RPC
+---
+
+- The `deriveaddresses`, `getdescriptorinfo`, `importdescriptors` and `scantxoutset` commands now
+  accept Miniscript expression within a `wsh()` descriptor.
+
+- The `getaddressinfo`, `decodescript`, `listdescriptors` and `listunspent` commands may now output
+  a Miniscript descriptor inside a `wsh()` where a `wsh(raw())` descriptor was previously returned.