diff --git a/dev-util/include-what-you-use/Manifest b/dev-util/include-what-you-use/Manifest
index 36c199a8d373b..c1dfe3910c88c 100644
--- a/dev-util/include-what-you-use/Manifest
+++ b/dev-util/include-what-you-use/Manifest
@@ -1,4 +1,2 @@
-DIST include-what-you-use-0.23.tar.gz 813726 BLAKE2B 845101985d1c39925605d2908ad76c40b8df0838467d7afd83b644914893f8e32ed1563348e568bc126ea4349ab390b189b734f66cf3b8da75277af169313a23 SHA512 5c2bbda7dbc614089717d2a4f8b9a96111dc30efcdd331a21c548399d58b47229210d5f17eb48eeb56c44797068ebac634a5d68a5c50ff322753e5f7965b3d48
-DIST include-what-you-use-0.24.tar.gz 821159 BLAKE2B 191d0299c0b5ad6ed75cb24b5530fe606dc6a9ddb91b8d1667ba6f5b909498354b7565e0ebafbfd56eb6e1c4e1c1cf885a0d08b8584d33fae34c4dcbde92ff65 SHA512 62d26a0e646cb6d94d5dee8d672009b938fdcfe64c5c6086693295e90d858754d9a6706b063ddc2cfe5660181df2722a4becfb56285b8cfc6d60f88f729924b7
 DIST include-what-you-use-0.25.tar.gz 847859 BLAKE2B 845525d948d323f1364ec33ff4e6bf55911d74727a297fa008d929fb3af06f290cf1da64e07ad29ef5a661ef8656a4afde5d4c487d89591cca28eb57c1983b49 SHA512 80bdde7edc7f9576eb7ddb36ce0f3dbdc918c46d2bb45362a8583353821275fa6e8058ff091b91c2417e749995d60d6cd1744fcb73b52cbe13829e4c1a0de637
 DIST include-what-you-use-0.26.tar.gz 1146969 BLAKE2B 301e24f93e6961acb41a7a62d515b6371b66b7d8f91a8665bf4996c50cbb627b96d3b4e28e3b899842f766d6b3c72bbff4c0b294be93b032c88c228f3b25a2a3 SHA512 dc7cd155d69bf5604de9560bd38b755b4f3194dc7ed358f36d0cb71015489b50f4743a85e8590bf016351442841c7f0dc7707d3db45f5949f3ad83d3395256d7
diff --git a/dev-util/include-what-you-use/include-what-you-use-0.23-r1.ebuild b/dev-util/include-what-you-use/include-what-you-use-0.23-r1.ebuild
deleted file mode 100644
index a3770f65d4421..0000000000000
--- a/dev-util/include-what-you-use/include-what-you-use-0.23-r1.ebuild
+++ /dev/null
@@ -1,63 +0,0 @@
-# Copyright 1999-2024 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-PYTHON_COMPAT=( python3_{10..13} )
-LLVM_COMPAT=( 19 )
-
-inherit cmake llvm-r1 python-single-r1
-
-DESCRIPTION="Find unused include directives in C/C++ programs"
-HOMEPAGE="https://include-what-you-use.org/"
-SRC_URI="
-	https://github.com/${PN}/${PN}/archive/${PV}.tar.gz
-		-> ${P}.tar.gz
-"
-
-LICENSE="GPL-2"
-SLOT="0"
-KEYWORDS="amd64 ~arm64 ~x86"
-
-RDEPEND="
-	$(llvm_gen_dep '
-		llvm-core/clang:${LLVM_SLOT}=
-		llvm-core/llvm:${LLVM_SLOT}=
-	')
-	${PYTHON_DEPS}
-"
-DEPEND="${RDEPEND}"
-
-REQUIRED_USE="${PYTHON_REQUIRED_USE}"
-
-pkg_setup() {
-	llvm-r1_pkg_setup
-	python-single-r1_pkg_setup
-}
-
-src_prepare() {
-	cmake_src_prepare
-	python_fix_shebang .
-}
-
-src_configure() {
-	local mycmakeargs=(
-		# Note [llvm install path]
-		# Unfortunately all binaries using clang driver
-		# have to reside at the same path depth as
-		# 'clang' binary itself. See bug #625972
-		# Thus as a hack we install it to the same directory
-		# as llvm/clang itself.
-		-DCMAKE_INSTALL_PREFIX="$(get_llvm_prefix)"
-		# Relative path to the clang library
-		# https://github.com/include-what-you-use/include-what-you-use/commit/e046d23571876e72719ef96a36ff0cb1cb2e64b6
-		-DIWYU_RESOURCE_DIR="../../../clang/${LLVM_SLOT}"
-	)
-	cmake_src_configure
-}
-
-src_test() {
-	"${EPYTHON}" run_iwyu_tests.py \
-				 -- "${BUILD_DIR}"/bin/${PN} \
-		|| die "Tests failed with $? (using ${EPYTHON})"
-}
diff --git a/dev-util/include-what-you-use/include-what-you-use-0.24.ebuild b/dev-util/include-what-you-use/include-what-you-use-0.24.ebuild
deleted file mode 100644
index bd701d0e58e7e..0000000000000
--- a/dev-util/include-what-you-use/include-what-you-use-0.24.ebuild
+++ /dev/null
@@ -1,104 +0,0 @@
-# Copyright 1999-2025 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-PYTHON_COMPAT=( python3_{11..14} )
-LLVM_COMPAT=( 20 )
-
-inherit cmake llvm-r2 python-single-r1 toolchain-funcs
-
-DESCRIPTION="Find unused include directives in C/C++ programs"
-HOMEPAGE="https://include-what-you-use.org/"
-SRC_URI="
-	https://github.com/${PN}/${PN}/archive/${PV}.tar.gz
-		-> ${P}.tar.gz
-"
-
-LICENSE="GPL-2"
-SLOT="0"
-KEYWORDS="~amd64 ~arm64 ~x86"
-
-RDEPEND="
-	$(llvm_gen_dep '
-		llvm-core/clang:${LLVM_SLOT}=
-		llvm-core/llvm:${LLVM_SLOT}=
-	')
-	${PYTHON_DEPS}
-"
-DEPEND="${RDEPEND}"
-
-REQUIRED_USE="${PYTHON_REQUIRED_USE}"
-
-pkg_setup() {
-	llvm-r2_pkg_setup
-	python-single-r1_pkg_setup
-}
-
-src_prepare() {
-	cmake_src_prepare
-	python_fix_shebang .
-}
-
-src_configure() {
-	local mycmakeargs=(
-		# Note [llvm install path]
-		# Unfortunately all binaries using clang driver
-		# have to reside at the same path depth as
-		# 'clang' binary itself. See bug #625972
-		# Thus as a hack we install it to the same directory
-		# as llvm/clang itself.
-		-DCMAKE_INSTALL_PREFIX="$(get_llvm_prefix)"
-		# Relative path to the clang library
-		# https://github.com/include-what-you-use/include-what-you-use/commit/e046d23571876e72719ef96a36ff0cb1cb2e64b6
-		-DIWYU_RESOURCE_DIR="../../../clang/${LLVM_SLOT}"
-	)
-	cmake_src_configure
-}
-
-# tc-cpp-is-true and tc-get-cxx-stdlib smashed together
-tc-cxx-is-true() {
-	local CONDITION=${1}
-
-	$(tc-getCXX)  ${CPPFLAGS} ${CXXFLAGS} -x c++ -E -P - <<-EOF >/dev/null 2>&1
-	#if __cplusplus >= 202002L
-	#include <version>
-	#else
-	#include <ciso646>
-	#endif
-	#if ${CONDITION}
-	true
-	#else
-	#error false
-	#endif
-	EOF
-}
-
-src_test() {
-	local -a CMAKE_SKIP_TESTS=()
-
-	if tc-cxx-is-true "defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE >= 15)"; then
-		CMAKE_SKIP_TESTS+=(
-			cxx.test_precomputed_tpl_args
-			cxx.test_precomputed_tpl_args_cpp14
-		)
-	fi
-
-	# There could be failures with older libcxx versions as well.
-	if tc-cxx-is-true "defined(_LIBCPP_VERSION) && (_LIBCPP_VERSION >= 210101)"; then
-		CMAKE_SKIP_TESTS+=(
-			cxx.test_badinc
-			cxx.test_expl_inst_macro
-			cxx.test_iterator
-			cxx.test_libbuiltins
-			cxx.test_no_char_traits
-			cxx.test_overloaded_class
-			cxx.test_placement_new
-			cxx.test_precomputed_tpl_args
-			cxx.test_precomputed_tpl_args_cpp14
-			cxx.test_stl_container_provides_allocator
-		)
-	fi
-
-	cmake_src_test
-}