diff --git a/math/dune-istl/Makefile b/math/dune-istl/Makefile
index f3563e16b92c..c043259caf44 100644
--- a/math/dune-istl/Makefile
+++ b/math/dune-istl/Makefile
@@ -1,41 +1,44 @@
 PORTNAME=	dune-istl
-DISTVERSION=	2.8.0
-PORTREVISION=	13
+DISTVERSION=	2.11.0
 CATEGORIES=	math
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	DUNE framework: Iterative Solver Template Library
 WWW=		https://www.dune-project.org/
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/LICENSE.md
 
 HPP_DEPENDS=	arpack++>0:math/arpack++ \
 		dune-common>0:math/dune-common \
 		suitesparse>0:math/suitesparse # needed in headers, but OPTIONAL dependency set is wider: https://gitlab.dune-project.org/core/dune-istl/-/issues/97
 BUILD_DEPENDS=	${HPP_DEPENDS} \
 		vc>0:devel/vc
 RUN_DEPENDS=	${HPP_DEPENDS}
 
 USES=		cmake compiler:c++17-lang fortran pkgconfig
 USE_GITLAB=	yes
 
 GL_SITE=	https://gitlab.dune-project.org
 GL_ACCOUNT=	core
-GL_TAGNAME=	fffb544a61d2c65a0d2fc7c751f36909f06be8f5
+GL_TAGNAME=	2e4db0b47b7adae3b824d36709b947b867e730a6
 
 NO_ARCH=	yes
 
+CMAKE_OFF=	DUNE_ENABLE_PYTHONBINDINGS
+
+PLIST_SUB+=	DUNE_ISTL_CMAKE_HASH=fb00f9855333dc21fd1e00ed8438c9ac
+
 OPTIONS_DEFINE=	DOCS PARMETIS
 OPTIONS_SUB=	yes
 
 DOCS_CMAKE_BOOL=	FREEBSD_INSTALL_DOCS
-DOCS_BUILD_DEPENDS=	doxygen:devel/doxygen \
+DOCS_BUILD_DEPENDS=	sphinx-build:textproc/py-sphinx
 
 PARMETIS_DESC=		Install PerMetis # needed in headers, but license prohibits packaging
 PARMETIS_BUILD_DEPENDS=	ParMetis>0:math/parmetis
 PARMETIS_RUN_DEPENDS=	ParMetis>0:math/parmetis
 
 PORTDOCS=	*
 
 .include <bsd.port.mk>
diff --git a/math/dune-istl/distinfo b/math/dune-istl/distinfo
index c6851156655a..0d1e235e6b75 100644
--- a/math/dune-istl/distinfo
+++ b/math/dune-istl/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1630950387
-SHA256 (core-dune-istl-fffb544a61d2c65a0d2fc7c751f36909f06be8f5_GL0.tar.gz) = 6f511ac59d7e7000cba7dc9fa142f50c971aa2be354836635c954e650338c6d9
-SIZE (core-dune-istl-fffb544a61d2c65a0d2fc7c751f36909f06be8f5_GL0.tar.gz) = 409673
+TIMESTAMP = 1774915221
+SHA256 (core-dune-istl-2e4db0b47b7adae3b824d36709b947b867e730a6_GL0.tar.gz) = a3fe9b2d7e69672cd97a2f1000f7a2be491cce1fb58fdb89ddde9e96c9821b98
+SIZE (core-dune-istl-2e4db0b47b7adae3b824d36709b947b867e730a6_GL0.tar.gz) = 438743
diff --git a/math/dune-istl/files/patch-CMakeLists.txt b/math/dune-istl/files/patch-CMakeLists.txt
index 448ec36ccef8..261a365d127a 100644
--- a/math/dune-istl/files/patch-CMakeLists.txt
+++ b/math/dune-istl/files/patch-CMakeLists.txt
@@ -1,12 +1,9 @@
---- CMakeLists.txt.orig	2021-08-31 13:58:37 UTC
+--- CMakeLists.txt.orig	2024-01-01 00:00:00 UTC
 +++ CMakeLists.txt
-@@ -25,7 +25,9 @@ dune_project()
- 
+@@ -43,7 +43,9 @@ dune_default_include_directories(duneistl INTERFACE)
  add_subdirectory(cmake/modules)
  add_subdirectory(dune)
 +if (FREEBSD_INSTALL_DOCS)
  add_subdirectory(doc)
 +endif()
- 
- # if Python bindings are enabled, include necessary sub directories.
- if( DUNE_ENABLE_PYTHONBINDINGS )
+ add_subdirectory(src)
diff --git a/math/dune-istl/pkg-plist b/math/dune-istl/pkg-plist
index a1fa130b1c6a..cfb4f7601196 100644
--- a/math/dune-istl/pkg-plist
+++ b/math/dune-istl/pkg-plist
@@ -1,90 +1,93 @@
+include/dune-istl-config.hh
 include/dune/istl/allocator.hh
 include/dune/istl/basearray.hh
 include/dune/istl/bccsmatrix.hh
 include/dune/istl/bccsmatrixinitializer.hh
 include/dune/istl/bcrsmatrix.hh
 include/dune/istl/bdmatrix.hh
 include/dune/istl/blocklevel.hh
 include/dune/istl/btdmatrix.hh
 include/dune/istl/bvector.hh
 include/dune/istl/cholmod.hh
-include/dune/istl/colcompmatrix.hh
 include/dune/istl/common/counter.hh
 include/dune/istl/common/registry.hh
+include/dune/istl/dilu.hh
 include/dune/istl/eigenvalue/arpackpp.hh
 include/dune/istl/eigenvalue/poweriteration.hh
 include/dune/istl/foreach.hh
 include/dune/istl/gsetc.hh
 include/dune/istl/ildl.hh
 include/dune/istl/ilu.hh
 include/dune/istl/ilusubdomainsolver.hh
 include/dune/istl/io.hh
 include/dune/istl/istlexception.hh
 include/dune/istl/ldl.hh
 include/dune/istl/matrix.hh
 include/dune/istl/matrixindexset.hh
 include/dune/istl/matrixmarket.hh
 include/dune/istl/matrixmatrix.hh
 include/dune/istl/matrixredistribute.hh
 include/dune/istl/matrixutils.hh
 include/dune/istl/multitypeblockmatrix.hh
 include/dune/istl/multitypeblockvector.hh
 include/dune/istl/novlpschwarz.hh
 include/dune/istl/operators.hh
 include/dune/istl/overlappingschwarz.hh
 include/dune/istl/owneroverlapcopy.hh
 include/dune/istl/paamg/aggregates.hh
 include/dune/istl/paamg/amg.hh
 include/dune/istl/paamg/combinedfunctor.hh
 include/dune/istl/paamg/construction.hh
 include/dune/istl/paamg/dependency.hh
 include/dune/istl/paamg/fastamg.hh
 include/dune/istl/paamg/fastamgsmoother.hh
 include/dune/istl/paamg/galerkin.hh
 include/dune/istl/paamg/globalaggregates.hh
 include/dune/istl/paamg/graph.hh
 include/dune/istl/paamg/graphcreator.hh
 include/dune/istl/paamg/hierarchy.hh
 include/dune/istl/paamg/indicescoarsener.hh
 include/dune/istl/paamg/kamg.hh
 include/dune/istl/paamg/matrixhierarchy.hh
 include/dune/istl/paamg/parameters.hh
 include/dune/istl/paamg/pinfo.hh
 include/dune/istl/paamg/properties.hh
 include/dune/istl/paamg/renumberer.hh
 include/dune/istl/paamg/smoother.hh
 include/dune/istl/paamg/transfer.hh
 include/dune/istl/paamg/twolevelmethod.hh
 include/dune/istl/preconditioner.hh
 include/dune/istl/preconditioners.hh
 include/dune/istl/repartition.hh
 include/dune/istl/scalarproducts.hh
 include/dune/istl/scaledidmatrix.hh
 include/dune/istl/schwarz.hh
 include/dune/istl/solver.hh
 include/dune/istl/solvercategory.hh
 include/dune/istl/solverfactory.hh
 include/dune/istl/solverregistry.hh
 include/dune/istl/solvers.hh
 include/dune/istl/solvertype.hh
 include/dune/istl/spqr.hh
 include/dune/istl/superlu.hh
 include/dune/istl/superlufunctions.hh
 include/dune/istl/supermatrix.hh
 include/dune/istl/test/laplacian.hh
 include/dune/istl/test/matrixtest.hh
 include/dune/istl/test/multirhstest.hh
 include/dune/istl/test/vectortest.hh
 include/dune/istl/umfpack.hh
 include/dune/istl/vbvector.hh
 lib/cmake/dune-istl/dune-istl-config-version.cmake
 lib/cmake/dune-istl/dune-istl-config.cmake
+lib/cmake/dune-istl/dune-istl-scoped-targets-%%DUNE_ISTL_CMAKE_HASH%%.cmake
+lib/cmake/dune-istl/dune-istl-targets.cmake
 lib/dunecontrol/dune-istl/dune.module
 libdata/pkgconfig/dune-istl.pc
 %%DATADIR%%/config.h.cmake
 share/dune/cmake/modules/AddARPACKPPFlags.cmake
 share/dune/cmake/modules/AddSuperLUFlags.cmake
 share/dune/cmake/modules/DuneIstlMacros.cmake
 share/dune/cmake/modules/FindARPACK.cmake
 share/dune/cmake/modules/FindARPACKPP.cmake
 share/dune/cmake/modules/FindSuperLU.cmake