diff --git a/sipgen/gencode.c b/sipgen/gencode.c
index 7dbe6ad..b0e3eb7 100644
--- a/sipgen/gencode.c
+++ b/sipgen/gencode.c
@@ -242,8 +242,6 @@ static int generateSubClassConvertors(sipSpec *pt, moduleDef *mod, FILE *fp);
 static void generateNameCache(sipSpec *pt, FILE *fp);
 static const char *resultOwner(overDef *od);
 static void prCachedName(FILE *fp, nameDef *nd, const char *prefix);
-static void generateSignalTableEntry(sipSpec *pt, classDef *cd, overDef *sig,
-        memberDef *md, int membernr, FILE *fp);
 static void generateTypesTable(sipSpec *pt, moduleDef *mod, FILE *fp);
 static int keepPyReference(argDef *ad);
 static int isDuplicateProtected(classDef *cd, overDef *target);
@@ -497,12 +495,6 @@ static void generateInternalAPIHeader(sipSpec *pt, moduleDef *mod,
         , mname
         , mname);
 
-    if (pluginPyQt4(pt))
-        prcode(fp,
-"\n"
-"#include <TQMetaType>\n"
-            );
-
     /* Define the enabled features. */
     noIntro = TRUE;
 
@@ -799,21 +791,6 @@ static void generateInternalAPIHeader(sipSpec *pt, moduleDef *mod,
             , mname, mld->module->name);
     }
 
-    if (pluginPyQt4(pt))
-        prcode(fp,
-"\n"
-"typedef const TQMetaObject *(*sip_tqt_metaobject_func)(sipSimpleWrapper *,sipTypeDef *);\n"
-"extern sip_tqt_metaobject_func sip_%s_tqt_metaobject;\n"
-"\n"
-"typedef int (*sip_tqt_metacall_func)(sipSimpleWrapper *,sipTypeDef *,TQMetaObject::Call,int,void **);\n"
-"extern sip_tqt_metacall_func sip_%s_tqt_metacall;\n"
-"\n"
-"typedef int (*sip_tqt_metacast_func)(sipSimpleWrapper *,sipTypeDef *,const char *);\n"
-"extern sip_tqt_metacast_func sip_%s_tqt_metacast;\n"
-            , mname
-            , mname
-            , mname);
-
     /*
      * Note that we don't forward declare the virtual handlers.  This is
      * because we would need to #include everything needed for their argument
@@ -1803,16 +1780,6 @@ static void generateCpp(sipSpec *pt, moduleDef *mod, const char *codeDir,
 "const sipExportedModuleDef *sipModuleAPI_%s_%s;\n"
             , mname, mld->module->name);
 
-    if (pluginPyQt4(pt))
-        prcode(fp,
-"\n"
-"sip_tqt_metaobject_func sip_%s_tqt_metaobject;\n"
-"sip_tqt_metacall_func sip_%s_tqt_metacall;\n"
-"sip_tqt_metacast_func sip_%s_tqt_metacast;\n"
-            , mname
-            , mname
-            , mname);
-
     /* Generate the Python module initialisation function. */
 
     if (mod->container == pt->module)
@@ -1902,20 +1869,6 @@ static void generateCpp(sipSpec *pt, moduleDef *mod, const char *codeDir,
 "    }\n"
         , mname);
 
-    if (pluginPyQt4(pt))
-    {
-        /* Import the helpers. */
-        prcode(fp,
-"\n"
-"    sip_%s_tqt_metaobject = (sip_tqt_metaobject_func)sipImportSymbol(\"tqtcore_tqt_metaobject\");\n"
-"    sip_%s_tqt_metacall = (sip_tqt_metacall_func)sipImportSymbol(\"tqtcore_tqt_metacall\");\n"
-"    sip_%s_tqt_metacast = (sip_tqt_metacast_func)sipImportSymbol(\"tqtcore_tqt_metacast\");\n"
-"\n"
-            , mname
-            , mname
-            , mname);
-    }
-
     prcode(fp,
 "    /* Initialise the module now all its dependencies have been set up. */\n"
 "    if (sipInitModule(&sipModuleAPI_%s,sipModuleDict) < 0)\n"
@@ -2037,7 +1990,7 @@ static void generateTypesTable(sipSpec *pt, moduleDef *mod, FILE *fp)
     argDef *ad;
     const char *type_suffix;
 
-    type_suffix = (pluginPyQt4(pt) || pluginPyTQt(pt)) ?  ".super" : "";
+    type_suffix = pluginPyTQt(pt) ?  ".super" : "";
 
     prcode(fp,
 "\n"
@@ -3623,7 +3576,7 @@ static void generateTypeDefLink(sipSpec *pt, ifaceFileDef *iff, FILE *fp)
 
         if (iff->next_alt->type == mappedtype_iface)
             prcode(fp, ".mtd_base");
-        else if (pluginPyTQt(pt) || pluginPyQt4(pt))
+        else if (pluginPyTQt(pt))
             prcode(fp, ".super.ctd_base");
         else
             prcode(fp, ".ctd_base");
@@ -5695,42 +5648,6 @@ static void generateShadowCode(sipSpec *pt, moduleDef *mod, classDef *cd,
             );
     }
 
-    /* The meta methods if required. */
-    if (pluginPyQt4(pt) && isTQObjectSubClass(cd))
-    {
-        if (!noPyQt4TQMetaObject(cd))
-            prcode(fp,
-"\n"
-"const TQMetaObject *sip%C::metaObject() const\n"
-"{\n"
-"    return sip_%s_tqt_metaobject(sipPySelf,sipType_%C);\n"
-"}\n"
-                , classFTQCName(cd)
-                , mod->name, classFTQCName(cd));
-
-        prcode(fp,
-"\n"
-"int sip%C::qt_metacall(TQMetaObject::Call _c,int _id,void **_a)\n"
-"{\n"
-"    _id = %S::qt_metacall(_c,_id,_a);\n"
-"\n"
-"    if (_id >= 0)\n"
-"        _id = sip_%s_tqt_metacall(sipPySelf,sipType_%C,_c,_id,_a);\n"
-"\n"
-"    return _id;\n"
-"}\n"
-"\n"
-"void *sip%C::qt_metacast(const char *_clname)\n"
-"{\n"
-"    return (sip_%s_tqt_metacast && sip_%s_tqt_metacast(sipPySelf,sipType_%C,_clname)) ? this : %S::qt_metacast(_clname);\n"
-"}\n"
-            , classFTQCName(cd)
-            , classFTQCName(cd)
-            , mod->name, classFTQCName(cd)
-            , classFTQCName(cd)
-            , mod->name, mod->name, classFTQCName(cd), classFTQCName(cd));
-    }
-
     /* Generate the virtual catchers. */
  
     virtNr = 0;
@@ -7652,9 +7569,7 @@ static void generateClassAPI(classDef *cd, sipSpec *pt, FILE *fp)
     {
         const char *type_prefix;
 
-        if (pluginPyQt4(pt))
-            type_prefix = "pyqt4";
-        else if (pluginPyTQt(pt))
+        if (pluginPyTQt(pt))
             type_prefix = "pytqt";
         else
             type_prefix = "sip";
@@ -7808,21 +7723,6 @@ static void generateShadowClassDeclaration(sipSpec *pt,classDef *cd,FILE *fp)
 "    %s~sip%C()%X;\n"
             ,(cd->vmembers != NULL ? "virtual " : ""),classFTQCName(cd),cd->dtorexceptions);
 
-    /* The metacall methods if required. */
-    if (pluginPyQt4(pt) && isTQObjectSubClass(cd))
-    {
-        prcode(fp,
-"\n"
-"    int tqt_metacall(TQMetaObject::Call,int,void **);\n"
-"    void *tqt_metacast(const char *);\n"
-            );
-
-        if (!noPyQt4TQMetaObject(cd))
-            prcode(fp,
-"    const TQMetaObject *metaObject() const;\n"
-                );
-    }
-
     /* The exposure of protected enums. */
 
     generateProtectedEnums(pt,cd,fp);
@@ -8530,7 +8430,7 @@ static void generateSimpleFunctionCall(fcallDef *fcd,FILE *fp)
 static void generateTypeDefinition(sipSpec *pt, classDef *cd, FILE *fp)
 {
     const char *mname, *sep, *type_prefix;
-    int is_slots, is_signals, nr_methods, nr_enums, nr_vars, embedded;
+    int is_slots, nr_methods, nr_enums, nr_vars, embedded;
     int is_inst_class, is_inst_voidp, is_inst_char, is_inst_string;
     int is_inst_int, is_inst_long, is_inst_ulong, is_inst_longlong;
     int is_inst_ulonglong, is_inst_double, has_docstring;
@@ -8602,79 +8502,6 @@ static void generateTypeDefinition(sipSpec *pt, classDef *cd, FILE *fp)
     nr_methods = generateClassMethodTable(pt, cd, fp);
     nr_enums = generateEnumMemberTable(pt, mod, cd, NULL, fp);
 
-    /* Generate the PyQt4 signals table. */
-    is_signals = FALSE;
-
-    if (pluginPyQt4(pt) && isTQObjectSubClass(cd))
-    {
-        /* The signals must be grouped by name. */
-        for (md = cd->members; md != NULL; md = md->next)
-        {
-            overDef *od;
-            int membernr = md->membernr;
-
-            for (od = cd->overs; od != NULL; od = od->next)
-            {
-                int a, nr_args;
-
-                if (od->common != md || !isSignal(od))
-                    continue;
-
-                if (membernr >= 0)
-                {
-                    /* See if there is a non-signal overload. */
-
-                    overDef *nsig;
-
-                    for (nsig = cd->overs; nsig != NULL; nsig = nsig->next)
-                        if (nsig != od && nsig->common == md && !isSignal(nsig))
-                            break;
-
-                    if (nsig == NULL)
-                        membernr = -1;
-                }
-
-                if (!is_signals)
-                {
-                    is_signals = TRUE;
-
-                    prcode(fp,
-"\n"
-"\n"
-"/* Define this type's PyQt4 signals. */\n"
-"static const pyqt4QtSignal pyqt4_signals_%C[] = {\n"
-                        , classFTQCName(cd));
-                }
-
-                /*
-                 * Default arguments are handled as multiple signals.  We make
-                 * sure the largest is first and the smallest last.
-                 */
-                generateSignalTableEntry(pt, cd, od, md, membernr, fp);
-                membernr = -1;
-
-                nr_args = od->cppsig->nrArgs;
-
-                for (a = nr_args - 1; a >= 0; --a)
-                {
-                    if (od->cppsig->args[a].defval == NULL)
-                        break;
-
-                    od->cppsig->nrArgs = a;
-                    generateSignalTableEntry(pt, cd, od, md, -1, fp);
-                }
-
-                od->cppsig->nrArgs = nr_args;
-            }
-        }
-
-        if (is_signals)
-            prcode(fp,
-"    {0, 0, 0}\n"
-"};\n"
-                );
-    }
-
     /* Generate the variable handlers. */
     nr_vars = 0;
 
@@ -8751,12 +8578,7 @@ static void generateTypeDefinition(sipSpec *pt, classDef *cd, FILE *fp)
         has_docstring = TRUE;
     }
 
-    if (pluginPyQt4(pt))
-    {
-        type_prefix = "pyqt4";
-        embedded = TRUE;
-    }
-    else if (pluginPyTQt(pt))
+    if (pluginPyTQt(pt))
     {
         type_prefix = "pytqt";
         embedded = TRUE;
@@ -9108,74 +8930,12 @@ static void generateTypeDefinition(sipSpec *pt, classDef *cd, FILE *fp)
                 );
     }
 
-    if (pluginPyQt4(pt))
-    {
-        if (isTQObjectSubClass(cd) && !noPyQt4TQMetaObject(cd))
-            prcode(fp,
-"    &%U::staticMetaObject,\n"
-                , cd);
-        else
-            prcode(fp,
-"    0,\n"
-                );
-
-        prcode(fp,
-"    %u,\n"
-            , cd->pyqt4_flags);
-
-        if (is_signals)
-            prcode(fp,
-"    pyqt4_signals_%C\n"
-                , classFTQCName(cd));
-        else
-            prcode(fp,
-"    0\n"
-                );
-    }
-
     prcode(fp,
 "};\n"
         );
 }
 
 
-/*
- * Generate an entry in the PyQt4 signal table.
- */
-static void generateSignalTableEntry(sipSpec *pt, classDef *cd, overDef *sig,
-        memberDef *md, int membernr, FILE *fp)
-{
-    prcode(fp,
-"    {\"%s(", sig->cppname);
-
-    generateCalledArgs(cd->iff, sig->cppsig, Declaration, TRUE, fp);
-
-    prcode(fp,")\", ");
-
-    if (docstrings)
-    {
-        fprintf(fp, "\"\\1");
-        prScopedPythonName(fp, cd->ecd, cd->pyname->text);
-        fprintf(fp, ".%s", md->pyname->text);
-        prPythonSignature(pt, fp, &sig->pysig, FALSE, FALSE, FALSE, FALSE,
-                TRUE);
-        fprintf(fp, "\", ");
-    }
-    else
-    {
-        prcode(fp, "0, ");
-    }
-
-    if (membernr >= 0)
-        prcode(fp, "&methods_%L[%d]", cd->iff, membernr);
-    else
-        prcode(fp, "0");
-
-    prcode(fp,"},\n"
-        );
-}
-
-
 /*
  * Return the sip module's string equivalent of a slot.
  */
diff --git a/sipgen/parser.y b/sipgen/parser.y
index da83b35..7670cab 100644
--- a/sipgen/parser.y
+++ b/sipgen/parser.y
@@ -3262,12 +3262,6 @@ static void finishClass(sipSpec *pt, moduleDef *mod, classDef *cd,
     if ((flg = findOptFlag(of, "Supertype", dotted_name_flag)) != NULL)
         cd->supertype = cacheName(pt, flg->fvalue.sval);
 
-    if ((flg = findOptFlag(of, "PyQt4Flags", integer_flag)) != NULL)
-        cd->pyqt4_flags = flg->fvalue.ival;
-
-    if (findOptFlag(of, "PyQt4NoQMetaObject", bool_flag) != NULL)
-        setPyQt4NoTQMetaObject(cd);
-
     if (isOpaque(cd))
     {
         if (findOptFlag(of, "External", bool_flag) != NULL)
@@ -6068,15 +6062,6 @@ int pluginPyTQt(sipSpec *pt)
 }
 
 
-/*
- * Return TRUE if the PyQt4 plugin was specified.
- */
-int pluginPyQt4(sipSpec *pt)
-{
-    return stringFind(pt->plugins, "PyQt4");
-}
-
-
 /*
  * Return TRUE if a list of strings contains a given entry.
  */
diff --git a/sipgen/sip.h b/sipgen/sip.h
index 5e4a79e..905f319 100644
--- a/sipgen/sip.h
+++ b/sipgen/sip.h
@@ -137,8 +137,6 @@
 #define setIsHoldGILDtor(cd) ((cd)->classflags |= CLASS_DTOR_HOLD_GIL)
 #define assignmentHelper(cd) ((cd)->classflags & CLASS_ASSIGN_HELPER)
 #define setAssignmentHelper(cd) ((cd)->classflags |= CLASS_ASSIGN_HELPER)
-#define noPyQt4TQMetaObject(cd)  ((cd)->classflags & CLASS_NO_TQMETAOBJECT)
-#define setPyQt4NoTQMetaObject(cd)   ((cd)->classflags |= CLASS_NO_TQMETAOBJECT)
 #define isTemplateClass(cd) ((cd)->classflags & CLASS_IS_TEMPLATE)
 #define setIsTemplateClass(cd)  ((cd)->classflags |= CLASS_IS_TEMPLATE)
 #define resetIsTemplateClass(cd)    ((cd)->classflags &= ~CLASS_IS_TEMPLATE)
@@ -989,7 +987,6 @@ typedef struct _mroDef {
 
 typedef struct _classDef {
     int classflags;                     /* The class flags. */
-    int pyqt4_flags;                    /* The PyQt4 specific flags. */
     nameDef *pyname;                    /* The Python name. */
     ifaceFileDef *iff;                  /* The interface file. */
     struct _classDef *ecd;              /* The enclosing scope. */
@@ -1140,7 +1137,6 @@ ifaceFileDef *findIfaceFile(sipSpec *pt, moduleDef *mod,
         scopedNameDef *fqname, ifaceFileType iftype,
         apiVersionRangeDef *api_range, argDef *ad);
 int pluginPyTQt(sipSpec *pt);
-int pluginPyQt4(sipSpec *pt);
 void yywarning(char *);
 nameDef *cacheName(sipSpec *pt, const char *name);
 scopedNameDef *encodedTemplateName(templateDef *td);
diff --git a/siplib/sip-tqt.h b/siplib/sip-tqt.h
index f8fc861..08aaf3c 100644
--- a/siplib/sip-tqt.h
+++ b/siplib/sip-tqt.h
@@ -1454,56 +1454,6 @@ typedef struct _pytqtClassTypeDef {
 } pytqtClassTypeDef;
 
 
-/*
- * The following are PyQt4-specific extensions.  In SIP-TQt v5 they will be pushed
- * out to a plugin supplied by PyQt4.
- */
-
-/*
- * The description of a TQt signal for PyQt4.
- */
-typedef struct _pyqt4QtSignal {
-    /* The C++ name and signature of the signal. */
-    const char *signature;
-
-    /* The optional docstring. */
-    const char *docstring;
-
-    /*
-     * If the signal is an overload of regular methods then this points to the
-     * code that implements those methods.
-     */
-    PyMethodDef *non_signals;
-} pyqt4QtSignal;
-
-
-/*
- * This is the PyQt4-specific extension to the generated class type structure.
- */
-typedef struct _pyqt4ClassTypeDef {
-    /*
-     * The super-type structure.  This must be first in the structure so that
-     * it can be cast to sipClassTypeDef *.
-     */
-    sipClassTypeDef super;
-
-    /* A pointer to the QObject sub-class's staticMetaObject class variable. */
-    const void *qt4_static_metaobject;
-
-    /*
-     * A set of flags.  At the moment only bit 0 is used to say if the type is
-     * derived from QFlags.
-     */
-    unsigned qt4_flags;
-
-    /*
-     * The table of signals emitted by the type.  These are grouped by signal
-     * name.
-     */
-    const pyqt4QtSignal *qt4_signals;
-} pyqt4ClassTypeDef;
-
-
 #ifdef __cplusplus
 }
 #endif