diff --git a/devel/xtl-quant-stack/Makefile b/devel/xtl-quant-stack/Makefile
index 13947743fb42..699ab3a77b83 100644
--- a/devel/xtl-quant-stack/Makefile
+++ b/devel/xtl-quant-stack/Makefile
@@ -1,32 +1,32 @@
 # $FreeBSD$
 
 PORTNAME=	xtl
-DISTVERSION=	0.6.19
+DISTVERSION=	0.6.21
 CATEGORIES=	devel
 PKGNAMESUFFIX=	-quant-stack
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Template library that supports other quantstack projects
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	nlohmann-json>0:devel/nlohmann-json
 RUN_DEPENDS=	nlohmann-json>0:devel/nlohmann-json
 TEST_DEPENDS=	nlohmann-json>0:devel/nlohmann-json \
 		googletest>0:devel/googletest
 
 USES=		cmake
 USE_GITHUB=	yes
 GH_ACCOUNT=	xtensor-stack
 
 NO_BUILD=	yes
 NO_ARCH=	yes
 
 do-test:
 	@cd ${WRKSRC} && \
 		${SETENV} ${CONFIGURE_ENV} ${CMAKE_BIN} ${CMAKE_ARGS} -Dxtl_DIR:STRING=${STAGEDIR}${PREFIX}/lib/cmake/xtl -DBUILD_TESTS=ON -DDOWNLOAD_GTEST=OFF && \
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} && \
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} xtest
 
 .include <bsd.port.mk>
diff --git a/devel/xtl-quant-stack/distinfo b/devel/xtl-quant-stack/distinfo
index 38ee557bf485..0811083a92e0 100644
--- a/devel/xtl-quant-stack/distinfo
+++ b/devel/xtl-quant-stack/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1600902399
-SHA256 (xtensor-stack-xtl-0.6.19_GH0.tar.gz) = 4290017440ff01bd979e5104d2629930993bbad04920881ecbfc515d0705beb3
-SIZE (xtensor-stack-xtl-0.6.19_GH0.tar.gz) = 119063
+TIMESTAMP = 1604852392
+SHA256 (xtensor-stack-xtl-0.6.21_GH0.tar.gz) = 97137014fa5da2a3598a267d06c8e28490b2e1c75b8f52358738bedb526fc771
+SIZE (xtensor-stack-xtl-0.6.21_GH0.tar.gz) = 156805
diff --git a/devel/xtl-quant-stack/pkg-plist b/devel/xtl-quant-stack/pkg-plist
index 66ad345a54fc..0e624464eb77 100644
--- a/devel/xtl-quant-stack/pkg-plist
+++ b/devel/xtl-quant-stack/pkg-plist
@@ -1,32 +1,35 @@
 include/xtl/xany.hpp
 include/xtl/xbase64.hpp
 include/xtl/xbasic_fixed_string.hpp
 include/xtl/xclosure.hpp
 include/xtl/xcomplex.hpp
 include/xtl/xcomplex_sequence.hpp
 include/xtl/xdynamic_bitset.hpp
 include/xtl/xfunctional.hpp
+include/xtl/xhalf_float.hpp
+include/xtl/xhalf_float_impl.hpp
 include/xtl/xhash.hpp
 include/xtl/xhierarchy_generator.hpp
 include/xtl/xiterator_base.hpp
 include/xtl/xjson.hpp
 include/xtl/xmasked_value.hpp
 include/xtl/xmasked_value_meta.hpp
 include/xtl/xmeta_utils.hpp
 include/xtl/xmultimethods.hpp
 include/xtl/xoptional.hpp
 include/xtl/xoptional_meta.hpp
 include/xtl/xoptional_sequence.hpp
+include/xtl/xplatform.hpp
 include/xtl/xproxy_wrapper.hpp
 include/xtl/xsequence.hpp
 include/xtl/xspan.hpp
 include/xtl/xspan_impl.hpp
 include/xtl/xtl_config.hpp
 include/xtl/xtype_traits.hpp
 include/xtl/xvariant.hpp
 include/xtl/xvariant_impl.hpp
 include/xtl/xvisitor.hpp
 lib/cmake/xtl/xtlConfig.cmake
 lib/cmake/xtl/xtlConfigVersion.cmake
 lib/cmake/xtl/xtlTargets.cmake
 libdata/pkgconfig/xtl.pc