diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index 8ec157e4..f4766773 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -39,15 +39,20 @@
       These values are identical for mainnet and testnet; tpub/tprv
       prefixes are no longer used in testnet wallets.
 
-    - The Wallet Import Format (WIF) is similarly extended. After a
-      base58-encoded key is decoded to binary, its first byte encodes
-      the script type:
+    - The Wallet Import Format (WIF) is similarly extended for segwit
+      scripts. After a base58-encoded key is decoded to binary, its
+      first byte encodes the script type:
+
          * 128 + 0: p2pkh
          * 128 + 1: p2wpkh
-         * 128 + 2: p2wpkh-p2sh
+         * 128 + 2: p2wpkh-in-p2sh
          * 128 + 5: p2sh
          * 128 + 6: p2wsh
-         * 128 + 7: p2wsh-p2sh
+         * 128 + 7: p2wsh-in-p2sh
+
+      The distinction between p2sh and p2pkh in private key means that
+      it is not possible to import a p2sh private key and associate it
+      to a p2pkh address.
 
   * A new version of the Electrum protocol is required by the client
     (version 1.1). Servers using older versions of the protocol will