diff --git a/dev-qt/qtbase/Manifest b/dev-qt/qtbase/Manifest
index e011d8e86d227..3e864c37b18b0 100644
--- a/dev-qt/qtbase/Manifest
+++ b/dev-qt/qtbase/Manifest
@@ -1 +1,2 @@
 DIST qtbase-everywhere-src-6.9.1.tar.xz 49755912 BLAKE2B 557c894eaa6933152c0c12e187bbac26d8166b4657af0259e65c87915c2b58a371ad5a080fe2cf8720757fdd5f61b3c82507163a236b65edd274b6c6d00068d7 SHA512 f0fdf4e2c10db73d8036e4b1324f04f48eced78feeed450b0ffa1fac5574daa4173996a4d25da761f5eeaa6037eab02418a88a59fd760d96a08d813c9b8136ed
+DIST qtbase-everywhere-src-6.9.2.tar.xz 49812824 BLAKE2B 6e378ae0d8a7f716b2c94683b8fe1d785b4d8dfea20d3f6ddeb8f82d19208d3cbefc16670ea94770724f09e87d23d019dc03424122a509cd16dc41c27e99ce0d SHA512 3fab05fd17165b5e4501236f736c2b4c8d28929e17ce19de614851ae69adad88d621360c441d1ff2954ab24dee0d461d948cf699bc1c58f4b766ca8379de651e
diff --git a/dev-qt/qtbase/qtbase-6.9.2.ebuild b/dev-qt/qtbase/qtbase-6.9.2.ebuild
new file mode 100644
index 0000000000000..f2c09e0c95659
--- /dev/null
+++ b/dev-qt/qtbase/qtbase-6.9.2.ebuild
@@ -0,0 +1,415 @@
+# Copyright 2021-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+QT6_HAS_STATIC_LIBS=1
+inherit flag-o-matic qt6-build toolchain-funcs
+
+DESCRIPTION="Cross-platform application development framework"
+
+if [[ ${QT6_BUILD_TYPE} == release ]]; then
+	KEYWORDS="~amd64 ~arm ~arm64 ~hppa ~loong ~ppc ~ppc64 ~riscv ~x86"
+fi
+
+declare -A QT6_IUSE=(
+	[global]="+ssl +udev zstd"
+	[core]="icu journald syslog"
+	[modules]="+concurrent +dbus +gui +network +sql +xml"
+
+	[gui]="
+		+X accessibility eglfs evdev gles2-only +libinput
+		opengl renderdoc tslib vulkan wayland +widgets
+	"
+	[network]="brotli gssapi libproxy sctp"
+	[sql]="mysql oci8 odbc postgres +sqlite"
+	[widgets]="cups gtk"
+
+	[optfeature]="nls" #810802
+)
+IUSE="${QT6_IUSE[*]}"
+REQUIRED_USE="
+	?? ( journald syslog )
+	$(
+		printf '%s? ( gui ) ' ${QT6_IUSE[gui]//+/}
+		printf '%s? ( network ) ' ${QT6_IUSE[network]//+/}
+		printf '%s? ( sql ) ' ${QT6_IUSE[sql]//+/}
+		printf '%s? ( gui widgets ) ' ${QT6_IUSE[widgets]//+/}
+	)
+	accessibility? ( dbus )
+	eglfs? ( opengl )
+	gles2-only? ( opengl )
+	gui? ( || ( X eglfs wayland ) )
+	libinput? ( udev )
+	sql? ( || ( ${QT6_IUSE[sql]//+/} ) )
+	test? ( icu sql? ( sqlite ) )
+"
+
+# groups:
+# - global (configure.cmake)
+# - qtcore (src/corelib/configure.cmake)
+# - qtgui (src/gui/configure.cmake)
+# - qtnetwork (src/network/configure.cmake)
+# - qtprintsupport (src/printsupport/configure.cmake) [gui+widgets]
+# - qtsql (src/plugins/sqldrivers/configure.cmake)
+# nolink: renderdoc, systemd
+COMMON_DEPEND="
+	sys-libs/zlib:=
+	ssl? ( dev-libs/openssl:= )
+	udev? ( virtual/libudev:= )
+	zstd? ( app-arch/zstd:= )
+
+	app-crypt/libb2
+	dev-libs/double-conversion:=
+	dev-libs/glib:2
+	dev-libs/libpcre2:=[pcre16,unicode(+)]
+	icu? ( dev-libs/icu:= )
+	journald? ( sys-apps/systemd )
+
+	dbus? ( sys-apps/dbus )
+	gui? (
+		dev-libs/md4c
+		media-libs/fontconfig
+		>=media-libs/freetype-2.13.1:2
+		media-libs/harfbuzz:=
+		media-libs/libjpeg-turbo:=
+		media-libs/libpng:=
+		x11-libs/libdrm
+		x11-libs/libxkbcommon[X?]
+		X? (
+			x11-libs/libICE
+			x11-libs/libSM
+			x11-libs/libX11
+			x11-libs/libxcb:=
+			x11-libs/xcb-util-cursor
+			x11-libs/xcb-util-image
+			x11-libs/xcb-util-keysyms
+			x11-libs/xcb-util-renderutil
+			x11-libs/xcb-util-wm
+		)
+		accessibility? ( app-accessibility/at-spi2-core:2 )
+		eglfs? ( media-libs/mesa[gbm(+)] )
+		evdev? ( sys-libs/mtdev )
+		libinput? ( dev-libs/libinput:= )
+		opengl? (
+			gles2-only? ( media-libs/libglvnd )
+			!gles2-only? ( media-libs/libglvnd[X?] )
+		)
+		renderdoc? ( media-gfx/renderdoc )
+		tslib? ( x11-libs/tslib )
+		widgets? (
+			cups? ( net-print/cups )
+			gtk? (
+				x11-libs/gdk-pixbuf:2
+				>=x11-libs/gtk+-3.24.41-r1:3[X?,wayland?]
+				x11-libs/pango
+			)
+		)
+	)
+	network? (
+		brotli? ( app-arch/brotli:= )
+		gssapi? ( virtual/krb5 )
+		libproxy? ( net-libs/libproxy )
+	)
+	sql? (
+		mysql? ( dev-db/mysql-connector-c:= )
+		oci8? ( dev-db/oracle-instantclient:=[sdk] )
+		odbc? ( dev-db/unixODBC )
+		postgres? ( dev-db/postgresql:* )
+		sqlite? ( dev-db/sqlite:3 )
+	)
+"
+# wrt blockers: users do not always depclean regularly and outdated
+# dev-qt packages sometime cause runtime issues (update this when new
+# Qt libraries/plugins are added, and keep old for 2y+ if removed)
+RDEPEND="
+	${COMMON_DEPEND}
+	!<dev-qt/qt3d-${PV}:6
+	!<dev-qt/qt5compat-${PV}:6
+	!<dev-qt/qtcharts-${PV}:6
+	!<dev-qt/qtconnectivity-${PV}:6
+	!<dev-qt/qtdeclarative-${PV}:6
+	!<dev-qt/qtgraphs-${PV}:6
+	!<dev-qt/qthttpserver-${PV}:6
+	!<dev-qt/qtimageformats-${PV}:6
+	!<dev-qt/qtlanguageserver-${PV}:6
+	!<dev-qt/qtlocation-${PV}:6
+	!<dev-qt/qtmultimedia-${PV}:6
+	!<dev-qt/qtnetworkauth-${PV}:6
+	!<dev-qt/qtpositioning-${PV}:6
+	!<dev-qt/qtquick3d-${PV}:6
+	!<dev-qt/qtquicktimeline-${PV}:6
+	!<dev-qt/qtremoteobjects-${PV}:6
+	!<dev-qt/qtscxml-${PV}:6
+	!<dev-qt/qtsensors-${PV}:6
+	!<dev-qt/qtserialbus-${PV}:6
+	!<dev-qt/qtserialport-${PV}:6
+	!<dev-qt/qtshadertools-${PV}:6
+	!<dev-qt/qtspeech-${PV}:6
+	!<dev-qt/qtsvg-${PV}:6
+	!<dev-qt/qttools-${PV}:6
+	!<dev-qt/qtvirtualkeyboard-${PV}:6
+	!<dev-qt/qtwayland-${PV}:6
+	!<dev-qt/qtwebchannel-${PV}:6
+	!<dev-qt/qtwebengine-${PV}:6
+	!<dev-qt/qtwebsockets-${PV}:6
+	!<dev-qt/qtwebview-${PV}:6
+	syslog? ( virtual/logger )
+"
+DEPEND="
+	${COMMON_DEPEND}
+	X? ( x11-base/xorg-proto )
+	gui? (
+		vulkan? ( dev-util/vulkan-headers )
+	)
+	network? (
+		sctp? ( net-misc/lksctp-tools )
+	)
+	test? (
+		elibc_musl? ( sys-libs/timezone-data )
+	)
+"
+BDEPEND="zstd? ( app-arch/libarchive[zstd] )" #910392
+PDEPEND="
+	nls? ( ~dev-qt/qttranslations-${PV}:6 )
+	wayland? ( ~dev-qt/qtwayland-${PV}:6 )
+"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-6.5.2-hppa-forkfd-grow-stack.patch
+	"${FILESDIR}"/${PN}-6.5.2-no-symlink-check.patch
+	"${FILESDIR}"/${PN}-6.6.1-forkfd-childstack-size.patch
+	"${FILESDIR}"/${PN}-6.6.3-gcc14-avx512fp16.patch
+	"${FILESDIR}"/${PN}-6.8.2-cross.patch
+	"${FILESDIR}"/${PN}-6.9.0-no-direct-extern-access.patch
+)
+
+src_prepare() {
+	qt6-build_src_prepare
+
+	if use test; then
+		# test itself has -Werror=strict-aliasing issues, drop for simplicity
+		sed -e '/add_subdirectory(qsharedpointer)/d' \
+			-i tests/auto/corelib/tools/CMakeLists.txt || die
+
+		# workaround for __extendhfxf2 being used for tst_qfloat16.cpp
+		# which is unavailable with compiler-rt (assume used if clang)
+		if tc-is-clang; then
+			sed -e '/add_subdirectory(qfloat16)/d' \
+				-i tests/auto/corelib/global/CMakeLists.txt || die
+		fi
+	fi
+}
+
+src_configure() {
+	if use gtk; then
+		# defang automagic dependencies (bug #624960)
+		use X || append-cxxflags -DGENTOO_GTK_HIDE_X11
+		use wayland || append-cxxflags -DGENTOO_GTK_HIDE_WAYLAND
+	fi
+
+	local mycmakeargs=(
+		-DBUILD_WITH_PCH=OFF
+
+		-DINSTALL_ARCHDATADIR="${QT6_ARCHDATADIR}"
+		-DINSTALL_BINDIR="${QT6_BINDIR}"
+		-DINSTALL_DATADIR="${QT6_DATADIR}"
+		-DINSTALL_DOCDIR="${QT6_DOCDIR}"
+		-DINSTALL_EXAMPLESDIR="${QT6_EXAMPLESDIR}"
+		-DINSTALL_INCLUDEDIR="${QT6_HEADERDIR}"
+		-DINSTALL_LIBDIR="${QT6_LIBDIR}"
+		-DINSTALL_LIBEXECDIR="${QT6_LIBEXECDIR}"
+		-DINSTALL_MKSPECSDIR="${QT6_MKSPECSDIR}"
+		-DINSTALL_PLUGINSDIR="${QT6_PLUGINDIR}"
+		-DINSTALL_QMLDIR="${QT6_QMLDIR}"
+		-DINSTALL_SYSCONFDIR="${QT6_SYSCONFDIR}"
+		-DINSTALL_TRANSLATIONSDIR="${QT6_TRANSLATIONDIR}"
+
+		-DQT_UNITY_BUILD=ON # ~30% faster build, affects other dev-qt/* too
+
+		-DQT_FEATURE_force_system_libs=ON
+		-DQT_FEATURE_relocatable=OFF #927691
+		$(qt_feature ssl openssl)
+		$(qt_feature ssl openssl_linked)
+		$(qt_feature udev libudev)
+		$(qt_feature zstd)
+
+		# qtcore
+		$(qt_feature icu)
+		$(qt_feature journald)
+		$(qt_feature syslog)
+
+		# tools
+		-DQT_FEATURE_androiddeployqt=OFF
+
+		# modules
+		$(qt_feature concurrent)
+		$(qt_feature dbus)
+		$(qt_feature gui)
+		$(qt_feature network)
+		$(qt_feature sql)
+		# trivial, and is often needed (sometimes even when not building tests)
+		-DQT_FEATURE_testlib=ON
+		$(qt_feature xml)
+
+		# let gentoo's defaults and/or users control security *FLAGS
+		-DQT_FEATURE_glibc_fortify_source=OFF
+		-DQT_FEATURE_intelcet=OFF
+		-DQT_FEATURE_libcpp_hardening=OFF
+		-DQT_FEATURE_libstdcpp_assertions=OFF
+		-DQT_FEATURE_relro_now_linker=OFF
+		-DQT_FEATURE_stack_clash_protection=OFF
+		-DQT_FEATURE_stack_protector=OFF
+		-DQT_FEATURE_trivial_auto_var_init_pattern=OFF
+
+		-DQT_INTERNAL_AVOID_OVERRIDING_SYNCQT_CONFIG=ON # would force -O3
+	)
+
+	use gui && mycmakeargs+=(
+		$(qt_feature X xcb)
+		$(qt_feature X system_xcb_xinput)
+		$(qt_feature X xkbcommon_x11)
+		$(cmake_use_find_package X X11) # needed for truly no automagic
+		$(qt_feature accessibility accessibility_atspi_bridge)
+		$(qt_feature eglfs)
+		$(qt_feature evdev)
+		$(qt_feature evdev mtdev)
+		$(qt_feature libinput)
+		$(qt_feature renderdoc graphicsframecapture)
+		$(qt_feature tslib)
+		$(qt_feature vulkan)
+		$(qt_feature wayland)
+		$(qt_feature widgets)
+		-DINPUT_opengl=$(usex opengl $(usex gles2-only es2 desktop) no)
+	) && use widgets && mycmakeargs+=(
+		# note: qtprintsupport is enabled w/ gui+widgets regardless of USE=cups
+		$(qt_feature cups)
+		$(qt_feature gtk gtk3)
+	)
+
+	use network && mycmakeargs+=(
+		$(qt_feature brotli)
+		$(qt_feature gssapi)
+		$(qt_feature libproxy)
+		$(qt_feature sctp)
+		$(usev test -DQT_SKIP_DOCKER_COMPOSE=ON)
+	)
+
+	use sql && mycmakeargs+=(
+		-DQT_FEATURE_sql_db2=OFF # unpackaged
+		-DQT_FEATURE_sql_ibase=OFF # unpackaged
+		-DQT_FEATURE_sql_mimer=OFF # unpackaged
+		$(qt_feature mysql sql_mysql)
+		$(qt_feature oci8 sql_oci)
+		$(usev oci8 -DOracle_ROOT="${ESYSROOT}"/usr/$(get_libdir)/oracle/client)
+		$(qt_feature odbc sql_odbc)
+		$(qt_feature postgres sql_psql)
+		$(qt_feature sqlite sql_sqlite)
+		$(qt_feature sqlite system_sqlite)
+	)
+
+	tc-is-cross-compiler && mycmakeargs+=(
+		-DQT_HOST_PATH="${BROOT}"/usr
+		-DQT_FORCE_BUILD_TOOLS=ON
+		-DQT_NO_GENERATE_QMAKE_WRAPPER_FOR_TARGET=ON
+	)
+
+	qt6-build_src_configure
+}
+
+src_test() {
+	local -x TZ=UTC
+	local -x LC_TIME=C
+
+	local CMAKE_SKIP_TESTS=(
+		# broken with out-of-source + if qtbase is not already installed
+		tst_moc
+		tst_qmake
+		# similarly broken when relocatable=OFF (bug #927691)
+		tst_qapplication
+		tst_qt_cmake_create
+		tst_uic
+		# needs x11/opengl, we *could* run these but tend to be flaky
+		# when opengl rendering is involved (even if software-only)
+		tst_qopengl{,config,widget,window}
+		tst_qgraphicsview
+		tst_qx11info
+		# fails with network sandbox
+		tst_qdnslookup
+		# fails with sandbox
+		tst_qsharedmemory
+		# typical to lack SCTP support on non-generic kernels
+		tst_qsctpsocket
+		# randomly fails without -j1, and not worth it over this (bug #916181)
+		tst_qfiledialog{,2}
+		# may randomly hang+timeout, perhaps related to -j as well
+		tst_qprocess #936484
+		tst_qtimer
+		# haystacksWithMoreThan4GiBWork can easily OOM (16GB ram not enough)
+		tst_qlatin1stringmatcher
+		# these can be flaky depending on the environment/toolchain
+		tst_qlogging # backtrace log test can easily vary
+		tst_q{,raw}font # affected by available fonts / settings (bug #914737)
+		tst_qprinter # checks system's printers (bug #916216)
+		tst_qhighdpi # may detect users' settings and fail (bug #935364)
+		tst_qstorageinfo # checks mounted filesystems
+		# flaky due to using different test framework and fails with USE=-gui
+		tst_selftests
+		# known failing when using clang+glibc+stdc++, needs looking into
+		tst_qthread
+		# partially failing on x86 chroots and seemingly(?) harmless (dev-qt
+		# revdeps tests pass), skip globally to avoid keywording flakiness
+		tst_json
+		tst_qcolorspace
+		tst_qdoublevalidator
+		tst_qglobal
+		tst_qglyphrun
+		tst_qvectornd
+		tst_rcc
+		# similarly, but on armv7 and potentially others (bug #914028)
+		tst_qlineedit
+		tst_qpainter
+		# likewise, known failing on BE arches (bug #914033,914371,918878)
+		tst_qimagereader
+		tst_qimagewriter
+		tst_qpluginloader
+		tst_quuid # >=6.6.2 had related fixes, needs retesting
+		# partially broken on llvm-musl, needs looking into but skip to have
+		# a baseline for regressions (rest of dev-qt still passes with musl)
+		$(usev elibc_musl '
+			tst_qicoimageformat
+			tst_qimagereader
+			tst_qimage
+		')
+		# fails due to hppa's NaN handling, needs looking into (bug #914371)
+		$(usev hppa '
+			tst_qcborvalue
+			tst_qnumeric
+		')
+		# note: for linux, upstream only really runs+maintains tests for amd64
+		# https://doc.qt.io/qt-6/supported-platforms.html
+	)
+
+	qt6-build_src_test
+}
+
+src_install() {
+	qt6-build_src_install
+
+	if use test; then
+		local delete_bins=( # need a better way to handle this
+			apphelper clientserver copier crashingServer desktopsettingsaware_helper
+			echo fileWriterProcess modal_helper nospace 'one space'
+			paster qcommandlineparser_test_helper qfileopeneventexternal
+			socketprocess syslocaleapp tst_qhashseed_helper 'two space s'
+			write-read-write
+		)
+		local delete=( # sigh
+			"${D}${QT6_BINDIR}"/test*
+			"${D}${QT6_LIBDIR}/objects-${CMAKE_BUILD_TYPE}"/*test*
+			"${delete_bins[@]/#/${D}${QT6_BINDIR}/}"
+		)
+		# using -f given not tracking which tests may be skipped or not
+		rm -rf -- "${delete[@]}" || die
+	fi
+}