diff --git a/examples b/examples
index 1d4093e9..3ba405ac 160000
--- a/examples
+++ b/examples
@@ -1 +1 @@
-Subproject commit 1d4093e9c95bbb3ec438d57fbc06c36361599ea4
+Subproject commit 3ba405ac6fdc2d31b451ebf3b9dd329ca025311c
diff --git a/include/qp.hpp b/include/qp.hpp
index a5615ba3..b57e9540 100644
--- a/include/qp.hpp
+++ b/include/qp.hpp
@@ -438,9 +438,6 @@ class QMsm : public QP::QAsm {
     }
 #endif // def Q_SPY
     bool isIn(QStateHandler const state) noexcept override;
-
-    //! @deprecated instead use: QMsm::isIn()
-    bool isInState(QMState const * const stateObj) const noexcept;
     QMState const * childStateObj(QMState const * const parent) const noexcept;
 
 private:
@@ -931,9 +928,6 @@ class QMActive : public QP::QActive {
         return reinterpret_cast<QMsm *>(this)->QMsm::getStateHandler();
     }
 #endif // def Q_SPY
-    bool isInState(QMState const * const st) const noexcept {
-        return reinterpret_cast<QMsm const *>(this)->QMsm::isInState(st);
-    }
     QMState const * childStateObj(QMState const * const parent) const noexcept {
         return reinterpret_cast<QMsm const *>(this)
                    ->QMsm::childStateObj(parent);
diff --git a/qpcpp.qm b/qpcpp.qm
index 1c4831ee..0e8c2ac7 100644
--- a/qpcpp.qm
+++ b/qpcpp.qm
@@ -1156,7 +1156,7 @@ do {
     else if (r == Q_RET_SUPER_SUB) {
         t = m_temp.obj; // current host state of the submachie
     }
-    else { // event unhandled due to a guard?
+    else { // event unhandled due to a guard
         QF_CRIT_ENTRY();
         // event must be unhandled due to a guard evaluating to 'false'
         Q_ASSERT_INCRIT(310, r == Q_RET_UNHANDLED);
@@ -1347,33 +1347,6 @@ QF_CRIT_ENTRY();
 Q_ENSURE_INCRIT(490, lbound &gt; 0);
 QF_CRIT_EXIT();
 
-return inState;</code>
-   </operation>
-   <!--${QEP::QMsm::isInState}-->
-   <operation name="isInState" type="bool" visibility="0x00" properties="0x00">
-    <specifiers>const noexcept</specifiers>
-    <documentation>//! @deprecated instead use: QMsm::isIn()</documentation>
-    <!--${QEP::QMsm::isInState::stateObj}-->
-    <parameter name="stateObj" type="QMState const * const"/>
-    <code>bool inState = false; // assume that this SM is not in 'state'
-
-QMState const *s = m_state.obj;
-std::int_fast8_t lbound = QMSM_MAX_NEST_DEPTH_; // fixed upper loop bound
-for (; (s != nullptr) &amp;&amp; (lbound &gt; 0); --lbound) {
-    if (s == stateObj) { // match found?
-        inState = true;
-        break;
-    }
-    else {
-        s = s-&gt;superstate; // advance to the superstate
-    }
-}
-
-QF_CRIT_STAT
-QF_CRIT_ENTRY();
-Q_ENSURE_INCRIT(590, lbound &gt; 0);
-QF_CRIT_EXIT();
-
 return inState;</code>
    </operation>
    <!--${QEP::QMsm::childStateObj}-->
@@ -2941,13 +2914,6 @@ m_temp.fun  = initial;</code>
     <specifiers>noexcept override</specifiers>
     <code>return reinterpret_cast&lt;QMsm *&gt;(this)-&gt;QMsm::getStateHandler();</code>
    </operation>
-   <!--${QF::QMActive::isInState}-->
-   <operation name="isInState" type="bool" visibility="0x00" properties="0x02">
-    <specifiers>const noexcept</specifiers>
-    <!--${QF::QMActive::isInState::st}-->
-    <parameter name="st" type="QMState const * const"/>
-    <code>return reinterpret_cast&lt;QMsm const *&gt;(this)-&gt;QMsm::isInState(st);</code>
-   </operation>
    <!--${QF::QMActive::childStateObj}-->
    <operation name="childStateObj" type="QMState const *" visibility="0x00" properties="0x02">
     <specifiers>const noexcept</specifiers>
diff --git a/qpcpp.sha1 b/qpcpp.sha1
index 55184e00..44ba1901 100644
--- a/qpcpp.sha1
+++ b/qpcpp.sha1
@@ -1,8 +1,8 @@
-b741762e30f27d4c7ab5c8ead0c70d675113c1f7 *qpcpp.qm
+177ecb5725a327d05728c48484a164e43a407045 *qpcpp.qm
 2e6071600db5ae5eace4cc524f9ed4f5310056ce *include/qequeue.hpp
 2ae88474c60e5ae739bafc1131f54ce9f1bba25b *include/qk.hpp
 8c49c0fb49ede99f2277e70e9340709a65d15f85 *include/qmpool.hpp
-89cb103f9c4ef181b02e5937682538b6efd2803a *include/qp.hpp
+16e02c12f65e037960d3994379aeddc618fba499 *include/qp.hpp
 c25d74292c78eb2af68fe8c39e854141d739fba1 *include/qp_pkg.hpp
 eef6f6b93ce2066f02be0217d4953045ce102878 *include/qpcpp.hpp
 9bf9ae3586f8828c372ab79771839bd3c76e5b5e *include/qs.hpp
@@ -14,7 +14,7 @@ b6b1f1c52727bec4c6a50b030ad9277f93ac0eee *include/qs_dummy.hpp
 0648d5e24f1954beef908b7fc57e344b01643d14 *include/qxk.hpp
 71899ce74eeb04f333ed00d53f87719f722a39ab *src/qf/CMakeLists.txt
 55c2256457431d6b7c2024ec934a52a33cc4e5ce *src/qf/qep_hsm.cpp
-ae443cd0da18d7cd14598a6e6646d86000a2591a *src/qf/qep_msm.cpp
+4c49ee7b7b1f1cffc07e8e3c6677d279f3861c83 *src/qf/qep_msm.cpp
 20e2a785f80fc9839b7f2774e64ec5414929e918 *src/qf/qf_act.cpp
 23569b7f1e7ec95d32b13288be4793d303ad2a73 *src/qf/qf_actq.cpp
 3a916b17accb3aea38ec52832e69646173ccd742 *src/qf/qf_defer.cpp
diff --git a/src/qf/qep_msm.cpp b/src/qf/qep_msm.cpp
index 700baa13..3742adec 100644
--- a/src/qf/qep_msm.cpp
+++ b/src/qf/qep_msm.cpp
@@ -209,7 +209,7 @@ void QMsm::dispatch(
         else if (r == Q_RET_SUPER_SUB) {
             t = m_temp.obj; // current host state of the submachie
         }
-        else { // event unhandled due to a guard?
+        else { // event unhandled due to a guard
             QF_CRIT_ENTRY();
             // event must be unhandled due to a guard evaluating to 'false'
             Q_ASSERT_INCRIT(310, r == Q_RET_UNHANDLED);
@@ -396,30 +396,6 @@ bool QMsm::isIn(QStateHandler const state) noexcept {
     return inState;
 }
 
-//${QEP::QMsm::isInState} ....................................................
-bool QMsm::isInState(QMState const * const stateObj) const noexcept {
-    bool inState = false; // assume that this SM is not in 'state'
-
-    QMState const *s = m_state.obj;
-    std::int_fast8_t lbound = QMSM_MAX_NEST_DEPTH_; // fixed upper loop bound
-    for (; (s != nullptr) && (lbound > 0); --lbound) {
-        if (s == stateObj) { // match found?
-            inState = true;
-            break;
-        }
-        else {
-            s = s->superstate; // advance to the superstate
-        }
-    }
-
-    QF_CRIT_STAT
-    QF_CRIT_ENTRY();
-    Q_ENSURE_INCRIT(590, lbound > 0);
-    QF_CRIT_EXIT();
-
-    return inState;
-}
-
 //${QEP::QMsm::childStateObj} ................................................
 QMState const * QMsm::childStateObj(QMState const * const parent) const noexcept {
     QMState const *child = m_state.obj;