diff --git a/misc/quantum++/Makefile b/misc/quantum++/Makefile
index f9829ebc0d15..52edec6086ba 100644
--- a/misc/quantum++/Makefile
+++ b/misc/quantum++/Makefile
@@ -1,27 +1,27 @@
 PORTNAME=	quantum++
 DISTVERSIONPREFIX=	v
-DISTVERSION=	3.0
+DISTVERSION=	3.1
 CATEGORIES=	misc devel
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	C++ header-only general purpose quantum computing library
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USES=		cmake:testing compiler:c++17-lang eigen:3,build,run
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	softwareQinc
 GH_PROJECT=	qpp
 
 CMAKE_TESTING_ON=	WITH_UNIT_TESTS
 CMAKE_TESTING_TARGET=	unit_tests
 
 NO_BUILD=	yes
 NO_ARCH=	yes
 
 post-test: # run tests
 	@${BUILD_WRKSRC}/unit_tests/unit_tests
 
 .include <bsd.port.mk>
diff --git a/misc/quantum++/distinfo b/misc/quantum++/distinfo
index 59a684c668c9..382f1308c599 100644
--- a/misc/quantum++/distinfo
+++ b/misc/quantum++/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1633841212
-SHA256 (softwareQinc-qpp-v3.0_GH0.tar.gz) = c26c9ae1465972ceb9d731c54345e59e35951cbe2485769bd48fa9e66c4e2ee6
-SIZE (softwareQinc-qpp-v3.0_GH0.tar.gz) = 5554155
+TIMESTAMP = 1641934111
+SHA256 (softwareQinc-qpp-v3.1_GH0.tar.gz) = 586d688dc65b61c0dbf5092d06c837ad1f101e5b24a9be9844bf3302cea54d03
+SIZE (softwareQinc-qpp-v3.1_GH0.tar.gz) = 5726978
diff --git a/misc/quantum++/pkg-plist b/misc/quantum++/pkg-plist
index a768950d30bd..e0a1e2ff49f0 100644
--- a/misc/quantum++/pkg-plist
+++ b/misc/quantum++/pkg-plist
@@ -1,54 +1,55 @@
 include/qpp/MATLAB/matlab.hpp
 include/qpp/classes/circuits/circuits.hpp
 include/qpp/classes/circuits/engines.hpp
 include/qpp/classes/codes.hpp
 include/qpp/classes/exception.hpp
 include/qpp/classes/gates.hpp
 include/qpp/classes/idisplay.hpp
 include/qpp/classes/init.hpp
 include/qpp/classes/layouts.hpp
 include/qpp/classes/noise.hpp
 include/qpp/classes/random_devices.hpp
 include/qpp/classes/reversible.hpp
 include/qpp/classes/states.hpp
 include/qpp/classes/timer.hpp
 include/qpp/constants.hpp
 include/qpp/entanglement.hpp
 include/qpp/entropies.hpp
 include/qpp/experimental/experimental.hpp
 include/qpp/functions.hpp
 include/qpp/input_output.hpp
 include/qpp/instruments.hpp
 include/qpp/internal/classes/iomanip.hpp
 include/qpp/internal/classes/singleton.hpp
 include/qpp/internal/util.hpp
 include/qpp/number_theory.hpp
 include/qpp/operations.hpp
 include/qpp/qasm/qasm.hpp
 include/qpp/qasmtools/ast/ast.hpp
 include/qpp/qasmtools/ast/base.hpp
+include/qpp/qasmtools/ast/cloneable.hpp
 include/qpp/qasmtools/ast/decl.hpp
 include/qpp/qasmtools/ast/expr.hpp
 include/qpp/qasmtools/ast/program.hpp
 include/qpp/qasmtools/ast/replacer.hpp
 include/qpp/qasmtools/ast/semantic.hpp
 include/qpp/qasmtools/ast/stmt.hpp
 include/qpp/qasmtools/ast/traversal.hpp
 include/qpp/qasmtools/ast/var.hpp
 include/qpp/qasmtools/ast/visitor.hpp
 include/qpp/qasmtools/parser/lexer.hpp
 include/qpp/qasmtools/parser/parser.hpp
 include/qpp/qasmtools/parser/position.hpp
 include/qpp/qasmtools/parser/preprocessor.hpp
 include/qpp/qasmtools/parser/token.hpp
 include/qpp/qasmtools/tools/ast_printer.hpp
 include/qpp/qasmtools/utils/angle.hpp
 include/qpp/qasmtools/utils/templates.hpp
 include/qpp/qpp.h
 include/qpp/random.hpp
 include/qpp/statistics.hpp
 include/qpp/traits.hpp
 include/qpp/types.hpp
 lib/cmake/qpp/qppConfig.cmake
 lib/cmake/qpp/qpp_dependencies.cmake
 lib/cmake/qpp/qpp_targets.cmake