diff --git a/games-util/umu-launcher/Manifest b/games-util/umu-launcher/Manifest
index 55cf034fc0..75bb780038 100644
--- a/games-util/umu-launcher/Manifest
+++ b/games-util/umu-launcher/Manifest
@@ -45,6 +45,7 @@ DIST syn-2.0.96.crate 297497 BLAKE2B 68b62de28ad670572096a1d92ff8ed6fb55fee441f2
 DIST target-lexicon-0.13.5.crate 26928 BLAKE2B f8c62cb91f68a635e6ce3fc254df9ce378b5e8f62c1147404c967484b9ed97fb33d7993b4671611db76566063e999d658d201f856f70196ec678d72cc758cf6d SHA512 956df27c01e1186c5356117ffd07810fc0b62fb919d5bfd215955ba85be00ef675212a3c0dc36679986be7b825442fec5c93c7643b7e1e19c04572e6463546fc
 DIST typenum-1.17.0.crate 42849 BLAKE2B a6d1162050679e2c4ab2467f3a77d301f6861882eb7c9749f31d047f383dd5bd2ed5846ad63eed99ccc04d6ac36cc697a305861e1d65880b4d2ef04ee0a79b94 SHA512 99773d5d9f850c0602db4bb67dd062b0ade6f086e155216f1bb2fb6569461ba7e1b7c2f2af81ea8833bc3bfcf3fe5033edecb7c438adae63f59d3e30cf63a508
 DIST umu-launcher-1.4.1.tar.gz 212059 BLAKE2B 2b2fc5bbde91c4de8ef7fd0ad9fcb35faa6d30f4795ddf305ef0045f0a266c3af677c0808bc3e37246844cb1350659c9487411441d7f3d3ea69b41ec92116e84 SHA512 3c388651c4f302cbae953f926f8c16fca5d382ba6e88ad5df8d8e91b43061b6e2e1e21addb778180acbfe002721eedce63e7f2afe875812e5ada03aef48c9eb6
+DIST umu-launcher-1.4.4.tar.gz 225138 BLAKE2B d23c3355fb9c489fae903067243fd19b0173dee0d903e333d22cb273c88ab6282bf18fd90d3f3d76576994b54fab07941fde96fd2fd893de3d7502adef53a3f4 SHA512 3ad45f4b291df7bd226fe9bd58e5963d9790581fe1fc0957cf35941c76d2ec5291042915e306831d7a332229f28540463d2525b8b151e8b17856f9516e40f700
 DIST unicode-ident-1.0.14.crate 47547 BLAKE2B 30e0b6d7f3a967aaf5b9d91237008a60c3a8ded53bda901696e23cea3931dd71b01ddab866dca9e31e17c395d5f5a68f2a938655b693e894962568c2cff5ca15 SHA512 7c6dcd1724e8cfedc37546d1abd49088b633dad228097acc73d7b6cab255b223e830c541144e05a00388fd8ca8066f27c18792419cfa58ee9da4460a38d0bc0a
 DIST version_check-0.9.5.crate 15554 BLAKE2B 131e75cc287518831e142430e2a39b48e4275874f4473780d47a27552294097aa1cddb65c385583e1022478f940b495eb43c24a8b1617b8ac5a24af3340c0d72 SHA512 d11d5a2240ab0c67ea69db56561ce202201edeef9a8e5eda3d9ae7ab7bb5752d8f343fe7f6536d8383de8d55f9024efa84f66a0c21e69563b7a38c4a628014db
 DIST zeroize-1.8.1.crate 20029 BLAKE2B 092eba034cd35ec47290020e0c2b213177ff5dbe14ab9e7f0b4ef3cb1ecbc42fbec2b951414e26ab00bc65aaddc2c93eddd5a1963b27c6cd613ac71c65d5cc24 SHA512 dd40ebe98b98fd742608d4066b5ab66caba94b2e679428fcaff9fe547d8cd6ff2360dc85d671ee9183e32fb79cb554d00d6aef9eb8f3d8ad0ec92d0435aa4ebe
diff --git a/games-util/umu-launcher/umu-launcher-1.4.4.ebuild b/games-util/umu-launcher/umu-launcher-1.4.4.ebuild
new file mode 100644
index 0000000000..7af41c2229
--- /dev/null
+++ b/games-util/umu-launcher/umu-launcher-1.4.4.ebuild
@@ -0,0 +1,148 @@
+# Copyright 2025-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+CARGO_OPTIONAL=1
+DISTUTILS_EXT=1
+DISTUTILS_USE_PEP517=hatchling
+PYTHON_COMPAT=( python3_{12..15} )
+RUST_MIN_VER="1.85.0"
+
+CRATES="
+	base16ct@1.0.0
+	base64ct@1.6.0
+	block-buffer@0.10.4
+	block-buffer@0.12.0
+	cfg-if@1.0.0
+	cipher@0.4.4
+	const-oid@0.10.2
+	cpufeatures@0.2.16
+	cpufeatures@0.3.0
+	crypto-common@0.1.6
+	crypto-common@0.2.1
+	curve25519-dalek-derive@0.1.1
+	curve25519-dalek@4.1.3
+	digest@0.10.7
+	digest@0.11.2
+	ed25519-dalek@2.1.1
+	ed25519@2.2.3
+	fiat-crypto@0.2.9
+	generic-array@0.14.7
+	heck@0.5.0
+	hybrid-array@0.4.8
+	inout@0.1.3
+	libc@0.2.169
+	once_cell@1.21.3
+	pem-rfc7468@0.7.0
+	portable-atomic@1.10.0
+	proc-macro2@1.0.92
+	pyo3-build-config@0.29.0
+	pyo3-ffi@0.29.0
+	pyo3-macros-backend@0.29.0
+	pyo3-macros@0.29.0
+	pyo3@0.29.0
+	quote@1.0.38
+	rand_core@0.6.4
+	rustc_version@0.4.1
+	semver@1.0.24
+	sha2@0.10.9
+	sha2@0.11.0
+	signature@2.2.0
+	ssh-cipher@0.2.0
+	ssh-encoding@0.2.0
+	ssh-key@0.6.7
+	subtle@2.6.1
+	syn@2.0.96
+	target-lexicon@0.13.5
+	typenum@1.17.0
+	unicode-ident@1.0.14
+	version_check@0.9.5
+	zeroize@1.8.1
+"
+
+inherit cargo distutils-r1
+
+DESCRIPTION="Unified launcher for Windows games on Linux"
+HOMEPAGE="https://github.com/Open-Wine-Components/umu-launcher"
+SRC_URI="
+	https://github.com/Open-Wine-Components/umu-launcher/archive/refs/tags/${PV}.tar.gz -> ${P}.tar.gz
+	${CARGO_CRATE_URIS}
+"
+
+LICENSE="GPL-3"
+# Dependent crate licenses
+LICENSE+=" Apache-2.0-with-LLVM-exceptions BSD MIT Unicode-3.0"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="delta-update"
+
+RDEPEND="
+	>=dev-python/python-xlib-0.33[${PYTHON_USEDEP}]
+	>=dev-python/urllib3-2.0.0[${PYTHON_USEDEP}]
+	delta-update? (
+		>=dev-python/cbor2-5.4.6[${PYTHON_USEDEP}]
+		>=dev-python/pyzstd-0.16.2[${PYTHON_USEDEP}]
+		>=dev-python/xxhash-3.2.0[${PYTHON_USEDEP}]
+	)
+"
+BDEPEND="
+	app-text/scdoc
+	delta-update? (
+		${RUST_DEPEND}
+	)
+	test? (
+		>=dev-python/cbor2-5.4.6[${PYTHON_USEDEP}]
+		>=dev-python/pyzstd-0.16.2[${PYTHON_USEDEP}]
+		>=dev-python/xxhash-3.2.0[${PYTHON_USEDEP}]
+	)
+"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-1.2.9-optional-delta.patch"
+)
+
+QA_FLAGS_IGNORED=".*/site-packages/umu/.*so"
+
+EPYTEST_PLUGINS=()
+
+distutils_enable_tests pytest
+
+src_unpack() {
+	if use delta-update; then
+		cargo_src_unpack
+	else
+		default
+	fi
+}
+
+src_configure() {
+	distutils-r1_src_configure
+	./configure.sh --prefix="${EPREFIX}"/usr || die
+}
+
+src_compile() {
+	distutils-r1_src_compile
+	emake umu-docs
+	if use delta-update; then
+		cargo_src_compile
+		cp "$(cargo_target_dir)"/{libumu_delta.so,umu_delta.so} || die
+	fi
+}
+
+python_test() {
+	epytest -o 'python_files=test_*.py *_test_*.py *_test.py'
+}
+
+python_install() {
+	distutils-r1_python_install
+	if use delta-update; then
+		python_moduleinto umu
+		python_domodule "$(cargo_target_dir)"/umu_delta.so
+	fi
+}
+
+src_install() {
+	distutils-r1_src_install
+	emake DESTDIR="${D}" umu-docs-install
+}