diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7a15f0558..0632fe75e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,20 @@ QXmpp 1.6.0 (UNRELEASED)
 
 *under development*
 
+QXmpp 1.5.6 (Feb 4, 2024)
+-------------------------
+
+Changes:
+ - Behaviour change: sendIq() automatically parses stanza errors (returned as QXmppError) (@lnjX)
+ - CMake: "QXmpp" legacy cmake package is now only installed for Qt 5 builds (@lnjX)
+ - Fix unit test with Qt 6! (@lnjX)
+ - EncryptedFileSharingProvider: Fix wrong cipher set in sent file share element (@lnjX)
+ - Fix SCE parsing mode when parsing encrypted messages (@lnjX)
+ - Fix file encryption with QCA issues (@lnjX)
+ - Fix picking by strength of hashing algorithms (@lnjX)
+ - Fix github ci (@lnjX)
+ - Add unit tests for all file encryption ciphers (@lnjX)
+
 QXmpp 1.5.5 (Apr 30, 2023)
 --------------------------
 
diff --git a/src/base/QXmppFutureUtils_p.h b/src/base/QXmppFutureUtils_p.h
index 951500089..818b04372 100644
--- a/src/base/QXmppFutureUtils_p.h
+++ b/src/base/QXmppFutureUtils_p.h
@@ -157,12 +157,6 @@ auto parseIq(Input &&sendResult, Converter convert) -> decltype(convert({}))
                           [convert = std::move(convert)](const QDomElement &element) -> Result {
                               IqType iq;
                               iq.parse(element);
-                              if (iq.type() == QXmppIq::Error) {
-                                  if (auto err = iq.errorOptional()) {
-                                      return QXmppError { err->text(), std::move(*err) };
-                                  }
-                                  return QXmppError { QStringLiteral("Unknown error.") };
-                              }
                               return convert(std::move(iq));
                           },
                           [](QXmppError error) -> Result {
diff --git a/src/base/QXmppStream.cpp b/src/base/QXmppStream.cpp
index e82d4ca0f..0fc182a59 100644
--- a/src/base/QXmppStream.cpp
+++ b/src/base/QXmppStream.cpp
@@ -69,8 +69,8 @@ QXmppStreamPrivate::~QXmppStreamPrivate()
 ///
 /// \typedef QXmppStream::IqResult
 ///
-/// Contains a QDomElement containing the IQ response or if the request couldn't
-/// be sent a QXmpp::PacketState.
+/// Contains a QDomElement if an IQ response of type 'result' has been received. In case of an
+/// error response of if an error occurred while sending the IQ request, a QXmppError is used.
 ///
 /// \warning THIS API IS NOT FINALIZED YET!
 ///
@@ -488,7 +488,23 @@ bool QXmppStream::handleIqResponse(const QDomElement &stanza)
             return false;
         }
 
-        itr.value().interface.finish(stanza);
+        // report IQ errors as QXmppError (this makes it impossible to parse the full error IQ,
+        // but that is okay for now)
+        if (iqType == QStringLiteral("error")) {
+            QXmppIq iq;
+            iq.parse(stanza);
+            if (auto err = iq.errorOptional()) {
+                // report stanza error
+                itr.value().interface.finish(QXmppError { err->text(), *err });
+            } else {
+                // this shouldn't happen (no <error/> element in IQ of type error)
+                using Err = QXmppStanza::Error;
+                itr.value().interface.finish(QXmppError { QStringLiteral("IQ error"), Err(Err::Cancel, Err::UndefinedCondition) });
+            }
+        } else {
+            // report stanza element for parsing
+            itr.value().interface.finish(stanza);
+        }
 
         d->runningIqs.erase(itr);
         return true;
diff --git a/src/client/QXmppClient.cpp b/src/client/QXmppClient.cpp
index a80c595e1..a6aa320f2 100644
--- a/src/client/QXmppClient.cpp
+++ b/src/client/QXmppClient.cpp
@@ -171,9 +171,9 @@ bool process(QXmppClient *client, const QList<QXmppClientExtension *> &extension
 ///
 /// \typedef QXmppClient::IqResult
 ///
-/// Result of an IQ request, either contains the QDomElement of the IQ answer
-/// (with type 'error' or 'result') or it contains the packet error, if the
-/// request couldn't be sent.
+/// Result of an IQ request, either contains the QDomElement of the IQ reponse (in case of an
+/// 'result' IQ type) or it contains an QXmppError with a QXmppStanza::Error (on type 'error') or
+/// a QXmpp::SendError.
 ///
 /// \since QXmpp 1.5
 ///
@@ -516,6 +516,9 @@ QXmppTask<QXmpp::SendResult> QXmppClient::reply(QXmppStanza &&stanza, const std:
 /// QDomElement. If you don't expect a special response, you may want use
 /// sendGenericIq().
 ///
+/// IQs of type 'error' are parsed automatically and returned as QXmppError with a contained
+/// QXmppStanza::Error.
+///
 /// This does not do any end-to-encryption on the IQ.
 ///
 /// \sa sendSensitiveIq()
@@ -538,6 +541,9 @@ QXmppTask<QXmppClient::IqResult> QXmppClient::sendIq(QXmppIq &&iq, const std::op
 /// encrypted or it only makes little sense to do so. This is why the default
 /// sendIq() does not do any additional end-to-end encryption.
 ///
+/// IQs of type 'error' are parsed automatically and returned as QXmppError with a contained
+/// QXmppStanza::Error.
+///
 /// \warning THIS API IS NOT FINALIZED YET!
 ///
 /// \since QXmpp 1.5