diff --git a/misc/ecflow/Makefile b/misc/ecflow/Makefile
index 0a598a20107d..a25a21ea56fa 100644
--- a/misc/ecflow/Makefile
+++ b/misc/ecflow/Makefile
@@ -1,44 +1,41 @@
 PORTNAME=	ecflow
-DISTVERSION=	5.13.0
-PORTREVISION=	4
+DISTVERSION=	5.15.1
 CATEGORIES=	misc
 MASTER_SITES=	https://confluence.ecmwf.int/download/attachments/8650755/
 DISTNAME=	ecFlow-${DISTVERSION}-Source
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Workflow package that enables users to run a large number of programs
 WWW=		https://confluence.ecmwf.int/display/ECFLOW/ecflow+home
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-BROKEN=		fails to build with boost-1.86+
-
 PY_DEPENDS=	${PYTHON_PKGNAMEPREFIX}boost-libs>0:devel/boost-python-libs@${PY_FLAVOR}
 BUILD_DEPENDS=	bash:shells/bash \
 		${PY_DEPENDS}
 LIB_DEPENDS=	libboost_program_options.so:devel/boost-libs
 RUN_DEPENDS=	${PY_DEPENDS}
 
 USES=		cmake compiler:c++17-lang gl localbase perl5 pkgconfig python qt:6 shebangfix ssl
 USE_QT=		5compat base charts svg tools:build
 USE_GL=		gl opengl
 
 SHEBANG_GLOB=	*.sh *.in *.py
 
 CMAKE_OFF=	ENABLE_STATIC_BOOST_LIBS ENABLE_TESTS ENABLE_ALL_TESTS
 
 CXXFLAGS_armv7=	-fPIC # attempt to work around compilation failure, see https://jira.ecmwf.int/browse/SUP-3688
 CXXFLAGS_i386=	-fPIC # attempt to work around compilation failure, see https://jira.ecmwf.int/browse/SUP-3688
 
 CONFLICTS_BUILD=	python27 # build attempts to find python-2.7 and use it
 
 .include <bsd.port.pre.mk>
 
 #post-patch:
 #.if ${COMPILER_TYPE} == clang
 #	@${REINPLACE_CMD} -e 's|std::binary_function|std::__binary_function|' \
 #		${WRKSRC}/ACore/src/Str.cpp
 #.endif
 
 .include <bsd.port.post.mk>
diff --git a/misc/ecflow/distinfo b/misc/ecflow/distinfo
index 257596474106..bc2c349560f6 100644
--- a/misc/ecflow/distinfo
+++ b/misc/ecflow/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1718929677
-SHA256 (ecFlow-5.13.0-Source.tar.gz) = a14f4e97cc9123bc6cadfb3ecbf3899e27b6deb53058590bba7a4dae12f3e029
-SIZE (ecFlow-5.13.0-Source.tar.gz) = 16918829
+TIMESTAMP = 1764960621
+SHA256 (ecFlow-5.15.1-Source.tar.gz) = e46293c32545c0182a1989ba5dbe667d32042f592d5bb20d0117c37f08ae2403
+SIZE (ecFlow-5.15.1-Source.tar.gz) = 17089545
diff --git a/misc/ecflow/files/patch-libs_base_src_ecflow_base_Client.hpp b/misc/ecflow/files/patch-libs_base_src_ecflow_base_Client.hpp
new file mode 100644
index 000000000000..cdef30d45846
--- /dev/null
+++ b/misc/ecflow/files/patch-libs_base_src_ecflow_base_Client.hpp
@@ -0,0 +1,10 @@
+--- libs/base/src/ecflow/base/Client.hpp.orig	2024-11-11 09:34:56 UTC
++++ libs/base/src/ecflow/base/Client.hpp
+@@ -12,6 +12,7 @@
+ #define ecflow_base_Client_HPP
+ 
+ #include <boost/asio.hpp>
++#include <boost/asio/deadline_timer.hpp>
+ 
+ #include "ecflow/base/ClientToServerRequest.hpp"
+ #include "ecflow/base/Connection.hpp"
diff --git a/misc/ecflow/files/patch-libs_base_src_ecflow_base_SslClient.hpp b/misc/ecflow/files/patch-libs_base_src_ecflow_base_SslClient.hpp
new file mode 100644
index 000000000000..2a685812d54e
--- /dev/null
+++ b/misc/ecflow/files/patch-libs_base_src_ecflow_base_SslClient.hpp
@@ -0,0 +1,11 @@
+--- libs/base/src/ecflow/base/SslClient.hpp.orig	2024-11-11 09:34:56 UTC
++++ libs/base/src/ecflow/base/SslClient.hpp
+@@ -19,6 +19,8 @@
+ /// not the Client project
+ ///
+ 
++#include <boost/asio/deadline_timer.hpp>
++
+ #include "ecflow/base/ClientToServerRequest.hpp"
+ #include "ecflow/base/ServerToClientResponse.hpp"
+ #include "ecflow/base/ssl_connection.hpp"
diff --git a/misc/ecflow/files/patch-libs_server_src_ecflow_server_CheckPtSaver.hpp b/misc/ecflow/files/patch-libs_server_src_ecflow_server_CheckPtSaver.hpp
new file mode 100644
index 000000000000..78291d65851d
--- /dev/null
+++ b/misc/ecflow/files/patch-libs_server_src_ecflow_server_CheckPtSaver.hpp
@@ -0,0 +1,10 @@
+--- libs/server/src/ecflow/server/CheckPtSaver.hpp.orig	2024-11-11 09:34:56 UTC
++++ libs/server/src/ecflow/server/CheckPtSaver.hpp
+@@ -12,6 +12,7 @@
+ #define ecflow_server_CheckPtSaver_HPP
+ 
+ #include <boost/asio.hpp>
++#include <boost/asio/deadline_timer.hpp>
+ 
+ #include "ecflow/core/Filesystem.hpp"
+ 
diff --git a/misc/ecflow/files/patch-libs_server_src_ecflow_server_NodeTreeTraverser.hpp b/misc/ecflow/files/patch-libs_server_src_ecflow_server_NodeTreeTraverser.hpp
new file mode 100644
index 000000000000..21bf1ce12ec4
--- /dev/null
+++ b/misc/ecflow/files/patch-libs_server_src_ecflow_server_NodeTreeTraverser.hpp
@@ -0,0 +1,11 @@
+--- libs/server/src/ecflow/server/NodeTreeTraverser.hpp.orig	2024-11-11 09:34:56 UTC
++++ libs/server/src/ecflow/server/NodeTreeTraverser.hpp
+@@ -11,6 +11,8 @@
+ #ifndef ecflow_server_NodeTreeTraverser_HPP
+ #define ecflow_server_NodeTreeTraverser_HPP
+ 
++#include <boost/asio/deadline_timer.hpp>
++
+ ///
+ /// \brief This class will traverse the node tree periodically, It is tied to a server.
+ /// This implementation uses a strand to ensure sequential processing of the node dependency traversal
diff --git a/misc/ecflow/files/patch-libs_server_src_ecflow_server_PeriodicScheduler.hpp b/misc/ecflow/files/patch-libs_server_src_ecflow_server_PeriodicScheduler.hpp
new file mode 100644
index 000000000000..31348de3543f
--- /dev/null
+++ b/misc/ecflow/files/patch-libs_server_src_ecflow_server_PeriodicScheduler.hpp
@@ -0,0 +1,10 @@
+--- libs/server/src/ecflow/server/PeriodicScheduler.hpp.orig	2024-11-11 09:34:56 UTC
++++ libs/server/src/ecflow/server/PeriodicScheduler.hpp
+@@ -15,6 +15,7 @@
+ 
+ #include <boost/asio.hpp>
+ #include <boost/asio/bind_executor.hpp>
++#include <boost/asio/deadline_timer.hpp>
+ 
+ #include "ecflow/core/Chrono.hpp"
+