diff --git a/dev-python/opentelemetry-semantic-conventions/Manifest b/dev-python/opentelemetry-semantic-conventions/Manifest
index bb31355a7db33..b83eff8f89c96 100644
--- a/dev-python/opentelemetry-semantic-conventions/Manifest
+++ b/dev-python/opentelemetry-semantic-conventions/Manifest
@@ -1,2 +1,3 @@
 DIST opentelemetry-python-1.40.0.gh.tar.gz 1380277 BLAKE2B a52ce43e047347d55ce3ba54c2db4fa883f7e543eac9cfe4e3aa92f03db3a0a2fa943235e9f1fe61b5b7bfe377f7c3a661822405c357e2b31885ca7f20c636d6 SHA512 3c5ff022f0374cd28248a8d08d3e909945833db06afaced75d3bafe1420b3e2686e8a5aa14c60bd01380dd0a22c3c08c92caed2671925f3cea4aa40f383c83c1
 DIST opentelemetry-python-1.41.1.gh.tar.gz 1501865 BLAKE2B fe44f7e589487cd44457e5434f95caf99cfc53b4bf3c95e03391be4052e1aa57f43623b5a3d9f42dab34b092cd9453316747ac965f39eaa1d023e43254c74b14 SHA512 9622efe2861aa4680649d74b0e0e0b296505050edaef70f2c8bdcaf533e1137959d54e2fe49b35f48b4ddfe2b52d2b4cef74bbcd0cdffbb287a4a72aa10a3e1b
+DIST opentelemetry-python-1.42.0.gh.tar.gz 1552321 BLAKE2B 5995479fbc7f9b5fa1f8f09f3198f66a4d7966640b605eab6d1d2a87e112e76cc8ffa35db926125533883f8e8dc57a2b34102981108cb2989402eaf12c082309 SHA512 d88a86865deee10f29c608baa0c2d397c7f92682d8a309aebdfff069a992d8e785a68e3afa651c8690140078d82eeeff0e2b45b611fc6964c9fd4c1aebc18418
diff --git a/dev-python/opentelemetry-semantic-conventions/opentelemetry-semantic-conventions-1.42.0.ebuild b/dev-python/opentelemetry-semantic-conventions/opentelemetry-semantic-conventions-1.42.0.ebuild
new file mode 100644
index 0000000000000..3049fd5c99fe2
--- /dev/null
+++ b/dev-python/opentelemetry-semantic-conventions/opentelemetry-semantic-conventions-1.42.0.ebuild
@@ -0,0 +1,52 @@
+# Copyright 2024-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=hatchling
+PYTHON_COMPAT=( python3_{11..14} )
+
+inherit distutils-r1 pypi
+
+MY_P="opentelemetry-python-${PV}"
+DESCRIPTION="OpenTelemetry Semantic Conventions"
+HOMEPAGE="
+	https://opentelemetry.io/
+	https://pypi.org/project/opentelemetry-sdk/
+	https://github.com/open-telemetry/opentelemetry-python/
+"
+SRC_URI="
+	https://github.com/open-telemetry/opentelemetry-python/archive/refs/tags/v${PV}.tar.gz
+		-> ${MY_P}.gh.tar.gz
+"
+S="${WORKDIR}/${MY_P}/${PN}"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~x86"
+
+RDEPEND="
+	~dev-python/opentelemetry-api-${PV}[${PYTHON_USEDEP}]
+	>=dev-python/typing-extensions-4.5.0[${PYTHON_USEDEP}]
+"
+BDEPEND="
+	test? (
+		dev-python/typing-extensions[${PYTHON_USEDEP}]
+	)
+"
+
+EPYTEST_PLUGINS=()
+distutils_enable_tests pytest
+
+python_test() {
+	cp -a "${BUILD_DIR}"/{install,test} || die
+	local -x PATH=${BUILD_DIR}/test/usr/bin:${PATH}
+
+	for dep in opentelemetry-sdk tests/opentelemetry-test-utils; do
+		pushd "${WORKDIR}/${MY_P}/${dep}" >/dev/null || die
+		distutils_pep517_install "${BUILD_DIR}"/test
+		popd >/dev/null || die
+	done
+
+	epytest
+}