diff --git a/dev-libs/libxml2/Manifest b/dev-libs/libxml2/Manifest
index 38c826c83e88b..557caa3b14422 100644
--- a/dev-libs/libxml2/Manifest
+++ b/dev-libs/libxml2/Manifest
@@ -4,6 +4,7 @@ DIST libxml2-2.15.0.tar.xz 2004476 BLAKE2B 07a570cd38528eb253d67f1eb88d375c5b3e3
 DIST libxml2-2.15.1.tar.xz 2004588 BLAKE2B 73c4d17adacda67d71c5a120c7de2324df1db35963cadbe18166dafe122e1f10dcab9d4fed0e128c077a5ca31432bfaf72f742c42680251660d397ab8bc3538b SHA512 429c7d0dc3cbcb8de1bf6eb588fb8025fee009c9b25e87c96ecc5de57cc12b558b0ab8141f333d73ca687109335f297c9f9776abbb9da9afc9d8e79041c86b7f
 DIST libxml2-2.15.2.tar.xz 3148720 BLAKE2B e8adec751b6c8c8fd8358bee0c33159813601f6306b318314ffbf85324fa3ebeee2e838608a7fe365ffe4b82c4700f328fc27ae9a75cd7ed67cf256067542c2e SHA512 35f18fee772e63e8ea6220e5f5435ef5aabb5692a4519a993ec9640576d08fa45d5097280add5c5ffb5c280359d05eeecab0df24cce0b7ec35eef102d607b0b8
 DIST libxml2-2.15.3.tar.xz 3152452 BLAKE2B 2ff478b46a40957386cd1ed0627bfc0f2433f47e786f20db3942304c90289adaeb1d9c3f12665df312b86cfac42f8e4dbc18e965bf90018f93c230b9b862df66 SHA512 6f7f1aabd012454553e851bd1ee548fbd14d21c576f2b2ab9eeedab3dfba51392083f74b34f060e9b538baeea212cdb462b8669c214c711771fb9a897fdc1c60
+DIST libxml2-2.15.4.tar.xz 3177444 BLAKE2B 92a4fc5179527968b9ac7043669a77d54c85143883749aa497005797bbf8b3d08514f62191437bfd079e0bb965859e456308b90e0ff1da738cc3dbd945c0f0bf SHA512 e162ed16ad6fb6c6ef1c40c6bed66a5f76db177fc24410cc261c9ddc6b19e9b003315db67f67cbcadaf08e546f0672de87bf6f297014af50fe544a781647f584
 DIST xmlts20130923.tar.gz 641522 BLAKE2B 63a47bc69278ef510cd0b3779aed729e1b309e30efa0015d28ed051cc03f9dfddb447ab57b07b3393e8f47393d15473b0e199c34cb1f5f746b15ddfaa55670be SHA512 d5c4d26b324ed21f4e0641cd7f8b76dbf9de80df8b519982e44d41c960df29fd03618e02e9693b2d11ad06d19c4a965274c95a048ec3b9653eacb919a7f8b733
 DIST xsts-2002-01-16.tar.gz 6894439 BLAKE2B 1e9ec63d2c104655e64249e07440a04d862fcbcd4d4e19745d81b34994319b510a531c9d6df1491fae1e90b5d0764f0f1a827251ca8df5d613178b0eab01ef25 SHA512 43300af6d39c1e2221b0ed7318fe14c7464eeb6eb030ed1e22eb29b4ab17f014e2a4c8887c3a46ae5d243e3072da27f00f4e285498ae6f1288177d38d1108288
 DIST xsts-2004-01-14.tar.gz 2761085 BLAKE2B 41545995fb3a65d053257c376c07d45ffd1041a433bfbdb46d4dd87a5afb60c18c8629a3d988323f9e7a1d709775b5a7e5930276a7121c0725a22705c0976e36 SHA512 32854388d7e720ad67156baf50bf2bae7bd878ca3e35fd7e44e57cad3f434f69d56bbbedd61509f8a1faf01c9eae74a078df8fe130780b182c05c05cb1c39ebe
diff --git a/dev-libs/libxml2/libxml2-2.15.4.ebuild b/dev-libs/libxml2/libxml2-2.15.4.ebuild
new file mode 100644
index 0000000000000..16b574fce6ad9
--- /dev/null
+++ b/dev-libs/libxml2/libxml2-2.15.4.ebuild
@@ -0,0 +1,165 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# Note: Please bump in sync with dev-libs/libxslt
+
+PYTHON_COMPAT=( python3_{11..14} )
+PYTHON_REQ_USE="xml(+)"
+inherit python-r1 meson-multilib
+
+DESCRIPTION="XML C parser and toolkit"
+HOMEPAGE="https://gitlab.gnome.org/GNOME/libxml2/-/wikis/home"
+if [[ ${PV} == 9999 ]] ; then
+	EGIT_REPO_URI="https://gitlab.gnome.org/GNOME/libxml2"
+	inherit git-r3
+else
+	inherit gnome.org
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~arm64-macos ~x64-macos ~x64-solaris"
+fi
+
+S="${WORKDIR}/${PN}-${PV%_rc*}"
+
+LICENSE="MIT"
+# see so_version = v_maj + v_min_compat for subslot
+SLOT="2/16"
+IUSE="doc icu python readline static-libs test"
+RESTRICT="!test? ( test )"
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+
+RDEPEND="
+	virtual/libiconv
+	>=virtual/zlib-1.2.8-r1:=[${MULTILIB_USEDEP}]
+	icu? ( >=dev-libs/icu-51.2-r1:=[${MULTILIB_USEDEP}] )
+	python? ( ${PYTHON_DEPS} )
+	readline? ( sys-libs/readline:= )
+"
+DEPEND="${RDEPEND}"
+BDEPEND="
+	virtual/pkgconfig
+	doc? (
+		app-text/docbook-xsl-stylesheets
+		app-text/doxygen
+		dev-libs/libxslt
+	)
+	python? ( app-text/doxygen )
+"
+
+MULTILIB_CHOST_TOOLS=(
+	/usr/bin/xml2-config
+)
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.14.2-no-git.patch
+)
+
+src_unpack() {
+	if [[ ${PV} == 9999 ]] ; then
+		git-r3_src_unpack
+	else
+		default
+	fi
+
+	cd "${S}" || die
+}
+
+src_prepare() {
+	default
+
+	sed -e "/^dir_doc/ s/meson.project_name()$/\'${PF}\'/" -i meson.build || die
+}
+
+python_configure() {
+	local emesonargs=(
+		$(meson_feature icu)
+		$(meson_native_use_feature readline)
+		$(meson_native_use_feature readline history)
+		-Ddocs=disabled
+		-Dpython=enabled
+		-Dschematron=enabled
+	)
+	mkdir "${BUILD_DIR}" || die
+	pushd "${BUILD_DIR}" >/dev/null || die
+	meson_src_configure
+	popd >/dev/null || die
+}
+
+multilib_src_configure() {
+	local emesonargs=(
+		-Ddefault_library=$(multilib_native_usex static-libs both shared)
+		$(meson_feature icu)
+		$(meson_native_use_feature doc docs)
+		$(meson_native_use_feature readline)
+		$(meson_native_use_feature readline history)
+		-Dpython=disabled
+		-Dschematron=enabled
+
+		# There has been a clean break with a soname bump.
+		# It's time to deal with the breakage.
+		# bug #935452
+		-Dlegacy=disabled
+	)
+	meson_src_configure
+
+	if multilib_is_native_abi && use python ; then
+		python_foreach_impl python_configure
+	fi
+}
+
+python_compile() {
+	pushd "${BUILD_DIR}" >/dev/null || die
+	meson_src_compile
+	popd >/dev/null || die
+}
+
+multilib_src_compile() {
+	meson_src_compile
+
+	if multilib_is_native_abi && use python ; then
+		python_foreach_impl python_compile
+	fi
+}
+
+multilib_src_test() {
+	meson_src_test
+
+	if multilib_is_native_abi && use python ; then
+		python_foreach_impl meson_src_test
+	fi
+}
+
+python_install() {
+	pushd "${BUILD_DIR}" >/dev/null || die
+	meson_src_install
+	python_optimize
+	popd >/dev/null || die
+}
+
+multilib_src_install() {
+	if multilib_is_native_abi && use python ; then
+		python_foreach_impl python_install
+	fi
+
+	meson_src_install
+}
+
+pkg_postinst() {
+	# We don't want to do the xmlcatalog during stage1, as xmlcatalog will not
+	# be in / and stage1 builds to ROOT=/tmp/stage1root. This fixes bug #208887.
+	if [[ -n "${ROOT}" ]]; then
+		elog "Skipping XML catalog creation for stage building (bug #208887)."
+	else
+		# Need an XML catalog, so no-one writes to a non-existent one
+		CATALOG="${EROOT}/etc/xml/catalog"
+
+		# We don't want to clobber an existing catalog though,
+		# only ensure that one is there
+		# <obz@gentoo.org>
+		if [[ ! -e "${CATALOG}" ]]; then
+			[[ -d "${EROOT}/etc/xml" ]] || mkdir -p "${EROOT}/etc/xml"
+			"${EPREFIX}"/usr/bin/xmlcatalog --create > "${CATALOG}"
+			einfo "Created XML catalog in ${CATALOG}"
+		fi
+	fi
+}