diff --git a/src/app/tape/tape.pro b/src/app/tape/tape.pro
index a74998b05..30eeb98f2 100644
--- a/src/app/tape/tape.pro
+++ b/src/app/tape/tape.pro
@@ -18,7 +18,12 @@ TEMPLATE = app
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # The following define makes your compiler emit warnings if you use
 # any feature of Qt which has been marked as deprecated (the exact warnings
diff --git a/src/app/valentina/valentina.pro b/src/app/valentina/valentina.pro
index 5ec62d053..6b4dd3202 100644
--- a/src/app/valentina/valentina.pro
+++ b/src/app/valentina/valentina.pro
@@ -31,7 +31,12 @@ macx{
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # The following define makes your compiler emit warnings if you use
 # any feature of Qt which has been marked as deprecated (the exact warnings
diff --git a/src/libs/fervor/fervor.pro b/src/libs/fervor/fervor.pro
index ae945cd24..279689cbf 100644
--- a/src/libs/fervor/fervor.pro
+++ b/src/libs/fervor/fervor.pro
@@ -17,7 +17,12 @@ TEMPLATE = lib
 
 CONFIG += staticlib # Making static library
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
diff --git a/src/libs/ifc/ifc.pro b/src/libs/ifc/ifc.pro
index cb8dc0b61..bb30563d5 100644
--- a/src/libs/ifc/ifc.pro
+++ b/src/libs/ifc/ifc.pro
@@ -21,7 +21,12 @@ TEMPLATE = lib
 
 CONFIG += staticlib # Making static library
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
diff --git a/src/libs/qmuparser/qmuparser.pro b/src/libs/qmuparser/qmuparser.pro
index 5a61996d1..d6a600a56 100644
--- a/src/libs/qmuparser/qmuparser.pro
+++ b/src/libs/qmuparser/qmuparser.pro
@@ -19,7 +19,12 @@ TEMPLATE = lib
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # The following define makes your compiler emit warnings if you use
 # any feature of Qt which has been marked as deprecated (the exact warnings
diff --git a/src/libs/vdxf/vdxf.pro b/src/libs/vdxf/vdxf.pro
index cdd2d6efe..15b0941ee 100644
--- a/src/libs/vdxf/vdxf.pro
+++ b/src/libs/vdxf/vdxf.pro
@@ -17,7 +17,12 @@ TEMPLATE = lib
 
 CONFIG += staticlib # Making static library
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
diff --git a/src/libs/vformat/vformat.pro b/src/libs/vformat/vformat.pro
index f284b819a..ac5e65aea 100644
--- a/src/libs/vformat/vformat.pro
+++ b/src/libs/vformat/vformat.pro
@@ -21,7 +21,12 @@ TEMPLATE = lib
 
 CONFIG += staticlib # Making static library
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
diff --git a/src/libs/vgeometry/vgeometry.pro b/src/libs/vgeometry/vgeometry.pro
index d125a1745..e922fd0db 100644
--- a/src/libs/vgeometry/vgeometry.pro
+++ b/src/libs/vgeometry/vgeometry.pro
@@ -17,7 +17,12 @@ TEMPLATE = lib
 
 CONFIG += staticlib # Making static library
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
diff --git a/src/libs/vlayout/vlayout.pro b/src/libs/vlayout/vlayout.pro
index 4827d4241..d5ef7054d 100644
--- a/src/libs/vlayout/vlayout.pro
+++ b/src/libs/vlayout/vlayout.pro
@@ -17,7 +17,12 @@ TEMPLATE = lib
 
 CONFIG += staticlib # Making static library
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
diff --git a/src/libs/vmisc/vmisc.pro b/src/libs/vmisc/vmisc.pro
index c58e10c37..2de6d832a 100644
--- a/src/libs/vmisc/vmisc.pro
+++ b/src/libs/vmisc/vmisc.pro
@@ -17,7 +17,12 @@ TEMPLATE = lib
 
 CONFIG += staticlib # Making static library
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
diff --git a/src/libs/vobj/vobj.pro b/src/libs/vobj/vobj.pro
index e66522189..cc73b3964 100644
--- a/src/libs/vobj/vobj.pro
+++ b/src/libs/vobj/vobj.pro
@@ -15,7 +15,12 @@ TEMPLATE = lib
 
 CONFIG += staticlib # Making static library
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
diff --git a/src/libs/vpatterndb/vpatterndb.pro b/src/libs/vpatterndb/vpatterndb.pro
index 41811a554..49c48e227 100644
--- a/src/libs/vpatterndb/vpatterndb.pro
+++ b/src/libs/vpatterndb/vpatterndb.pro
@@ -17,7 +17,12 @@ TEMPLATE = lib
 
 CONFIG += staticlib # Making static library
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
diff --git a/src/libs/vpropertyexplorer/vpropertyexplorer.pro b/src/libs/vpropertyexplorer/vpropertyexplorer.pro
index 781a3db4a..8d532d294 100644
--- a/src/libs/vpropertyexplorer/vpropertyexplorer.pro
+++ b/src/libs/vpropertyexplorer/vpropertyexplorer.pro
@@ -19,7 +19,12 @@ TARGET = vpropertyexplorer
 # We want create library
 TEMPLATE = lib
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # The following define makes your compiler emit warnings if you use
 # any feature of Qt which has been marked as deprecated (the exact warnings
diff --git a/src/libs/vtest/vtest.pro b/src/libs/vtest/vtest.pro
index b44c6d494..51f8052b0 100644
--- a/src/libs/vtest/vtest.pro
+++ b/src/libs/vtest/vtest.pro
@@ -17,7 +17,12 @@ TEMPLATE = lib
 
 CONFIG += staticlib # Making static library
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
diff --git a/src/libs/vtools/vtools.pro b/src/libs/vtools/vtools.pro
index 44070b93b..91ce3d161 100644
--- a/src/libs/vtools/vtools.pro
+++ b/src/libs/vtools/vtools.pro
@@ -17,7 +17,12 @@ TEMPLATE = lib
 
 CONFIG += staticlib # Making static library
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
diff --git a/src/libs/vwidgets/vwidgets.pro b/src/libs/vwidgets/vwidgets.pro
index 86886cc89..c6884838e 100644
--- a/src/libs/vwidgets/vwidgets.pro
+++ b/src/libs/vwidgets/vwidgets.pro
@@ -17,7 +17,12 @@ TEMPLATE = lib
 
 CONFIG += staticlib # Making static library
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= debug_and_release debug_and_release_target
diff --git a/src/test/CollectionTest/CollectionTest.pro b/src/test/CollectionTest/CollectionTest.pro
index 9cc7885b2..758dd3179 100644
--- a/src/test/CollectionTest/CollectionTest.pro
+++ b/src/test/CollectionTest/CollectionTest.pro
@@ -31,7 +31,12 @@ DEFINES += QT_DEPRECATED_WARNINGS
 # You can also select to disable deprecated APIs only up to a certain version of Qt.
 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= app_bundle debug_and_release debug_and_release_target
diff --git a/src/test/ParserTest/ParserTest.pro b/src/test/ParserTest/ParserTest.pro
index c8cd5854c..efc4f77b4 100644
--- a/src/test/ParserTest/ParserTest.pro
+++ b/src/test/ParserTest/ParserTest.pro
@@ -21,7 +21,12 @@ TARGET = ParserTest
 # Console application.
 CONFIG   += console
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # CONFIG += testcase adds a  'make check' which is great. But by default it also
 # adds a 'make install' that installs the test cases, which we do not want.
diff --git a/src/test/TranslationsTest/TranslationsTest.pro b/src/test/TranslationsTest/TranslationsTest.pro
index 3e4c819f3..fbd74e9d8 100644
--- a/src/test/TranslationsTest/TranslationsTest.pro
+++ b/src/test/TranslationsTest/TranslationsTest.pro
@@ -29,7 +29,12 @@ DEFINES += QT_DEPRECATED_WARNINGS
 # You can also select to disable deprecated APIs only up to a certain version of Qt.
 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= app_bundle debug_and_release debug_and_release_target
diff --git a/src/test/ValentinaTest/ValentinaTest.pro b/src/test/ValentinaTest/ValentinaTest.pro
index d1141879a..27d7c8afa 100644
--- a/src/test/ValentinaTest/ValentinaTest.pro
+++ b/src/test/ValentinaTest/ValentinaTest.pro
@@ -27,7 +27,12 @@ DEFINES += QT_DEPRECATED_WARNINGS
 # You can also select to disable deprecated APIs only up to a certain version of Qt.
 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
 
-CONFIG += c++14
+# Since Q5.12 available support for C++17
+equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 11) {
+    CONFIG += c++17
+} else {
+    CONFIG += c++14
+}
 
 # Use out-of-source builds (shadow builds)
 CONFIG -= app_bundle debug_and_release debug_and_release_target