News251: Describe Bitcoin Core 26076

Author: murchandamus

_posts/en/newsletters/2023-05-17-newsletter.md

@@ -187,7 +187,13 @@ Server][btcpay server repo], [BDK][bdk repo], [Bitcoin Improvement
 Proposals (BIPs)][bips repo], [Lightning BOLTs][bolts repo], and
 [Bitcoin Inquisition][bitcoin inquisition repo].*
 
-- [Bitcoin Core #26076][] Switch hardened derivation marker to h FIXME:Xekyo
+- [Bitcoin Core #26076][] updates RPC methods that show derivation paths for
+  public keys now use `h` instead of a single-quote `'` to indicate a
+  hardened derivation step. Note that this changes the descriptor
+  checksum. When handling descriptors with private keys, the same symbol
+  is used as when the descriptor was generated or imported. For legacy
+  wallets the `hdkeypath` field in `getaddressinfo` and the
+  serialization format of wallet dumps remain unchanged.
 
 - [Bitcoin Core #27608][] will continue trying to download a block from
   a peer even if another peer provided the block.  Bitcoin Core will