diff --git a/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/Manifest b/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/Manifest
index dc5bb175a1..c44605ec91 100644
--- a/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/Manifest
+++ b/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/Manifest
@@ -1,4 +1,2 @@
-DIST tzdb-2025a.tar.lz 548434 BLAKE2B cccd37ca71bfde7e56ed5138be5a610ec9d5ca59658b90e5e2a10af9221ed6d09b24b106bef46b04bbc97bff74b6e97a1f800c078a523aa32c13416a33264df2 SHA512 1e8c4e141158d63ca5c39babc9d18c32df14e2e59bc7649a7fed8c3e577f7b175bafa43883cf351139ff198515f5f8c22b1418e2ac7efb7f837faa8f61d2574d
-DIST tzdb-2025b.tar.lz 549879 BLAKE2B 6930d475e7fa2c29d7c6c9a1d3c8a8e4ec80745d3f8d7be6b74ae1fc1ba06fbe362e5ff96f6e3b6faa4e15240973ec4162a7f764cddf451029776f443966824c SHA512 4f4afca86645ca5564a9d7d3ddc36e6b07c15c1b87cd4edbbcae72c6be4e6154e4ad1966407a7081237550301f1093af53dd8a486effb95f7cf3e5721db47c8f
-DIST tzdb-2025c.tar.lz 556440 BLAKE2B 21524cbbde446b7ea2a4536765795f4eb0f180f88fe1e1857168ae0d59ccd1c0e459b1853ba6ff9c6444514dfa22c04d367c1b3039e1bbd40779a80d3e1bb955 SHA512 6fa233d6a884acd24b52c44b2eecf683f9403f44b39dcbe85b1ec92fc11f4daf6ee5143f05332faf9258b8bd8f7ca7d4882e19b1e3d892b4761be43fd4f39d51
 DIST tzdb-2026a.tar.lz 559308 BLAKE2B aaa57fb5301dc661d39d3614493d156f9da2066bb6544c0c58e3e267d21658fdcb70412fe10bf14c3d92bdf01deee490fb2a86b6aaf902f7fec9690f863e0860 SHA512 1824fc2e198a449ebaa41e6c679a494c486b848f13fe8f18f948fde0533e99f5f01e7e7298e257c565838d24ec743e824f402887abdf525d1ce578a714c71414
+DIST tzdb-2026b.tar.lz 561562 BLAKE2B d349cf4978a4b027556e6061c51f2120c2e08d31c68418b675bc973ad86a4c6b1ff885784aad6067bbc22b676f489d620f24e6abf8daf68ffa553be271bf6e85 SHA512 5ec7f74f14cd2c70a0730e3690e82bd0ba889ac26c96397c16aa08005473c2c86feb47958b52e0301810c8eb908e6d8faf998ffae75b2337a912cc9e52c0f9e9
diff --git a/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2025a-r1.ebuild b/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2025a-r1.ebuild
deleted file mode 100644
index 2cd1931e4e..0000000000
--- a/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2025a-r1.ebuild
+++ /dev/null
@@ -1,169 +0,0 @@
-# Copyright 1999-2025 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-inherit toolchain-funcs flag-o-matic unpacker
-
-DESCRIPTION="Timezone data (/usr/share/zoneinfo) and utilities (tzselect/zic/zdump)"
-HOMEPAGE="https://www.iana.org/time-zones"
-SRC_URI="
-	https://data.iana.org/time-zones/releases/tzdb-${PV}.tar.lz
-"
-S="${WORKDIR}"/tzdb-${PV}
-
-LICENSE="BSD public-domain"
-SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 ~sparc x86 ~arm64-macos ~x64-macos ~x64-solaris"
-IUSE="nls leaps-timezone zic-slim"
-
-DEPEND="nls? ( virtual/libintl )"
-RDEPEND="
-	${DEPEND}
-	!sys-libs/glibc[vanilla(+)]
-"
-BDEPEND="$(unpacker_src_uri_depends)"
-
-src_prepare() {
-	default
-
-	if tc-is-cross-compiler ; then
-		cp -pR "${S}" "${S}"-native || die
-	fi
-}
-
-src_configure() {
-	tc-export CC
-
-	# bug #471102
-	append-lfs-flags
-
-	if use elibc_Darwin ; then
-		# bug #138251
-		append-cppflags -DSTD_INSPIRED
-	fi
-
-	append-cppflags -DHAVE_GETTEXT=$(usex nls 1 0) -DTZ_DOMAIN='\"libc\"'
-
-	# Upstream default is 'slim', but it breaks quite a few programs
-	# that parse /etc/localtime directly: bug #747538.
-	append-cppflags -DZIC_BLOAT_DEFAULT='\"'$(usex zic-slim slim fat)'\"'
-
-	LDLIBS=""
-	if use nls ; then
-		# See if an external libintl is available. bug #154181, bug #578424
-		local c="${T}/test"
-		echo 'int main(){}' > "${c}.c" || die
-		if $(tc-getCC) ${CPPFLAGS} ${CFLAGS} ${LDFLAGS} "${c}.c" -o "${c}" -lintl 2>/dev/null ; then
-			LDLIBS+=" -lintl"
-		fi
-	fi
-}
-
-_emake() {
-	emake \
-		REDO=$(usex leaps-timezone posix_right posix_only) \
-		TOPDIR="${EPREFIX}" \
-		ZICDIR='$(TOPDIR)/usr/bin' \
-		"$@"
-}
-
-src_compile() {
-	tc-export AR CC RANLIB
-
-	_emake \
-		CFLAGS="${CFLAGS} -std=gnu99 ${CPPFLAGS}" \
-		LDFLAGS="${LDFLAGS}" \
-		LDLIBS="${LDLIBS}"
-
-	if tc-is-cross-compiler ; then
-		_emake -C "${S}"-native \
-			AR="$(tc-getBUILD_AR)" \
-			CC="$(tc-getBUILD_CC)" \
-			RANLIB="$(tc-getBUILD_RANLIB)" \
-			CFLAGS="${BUILD_CFLAGS} ${BUILD_CPPFLAGS}" \
-			LDFLAGS="${BUILD_LDFLAGS}" \
-			LDLIBS="${LDLIBS}" \
-			zic
-	fi
-}
-
-src_test() {
-	# CURL is used for extended/web based tests. Punt on them.
-	emake check CURL=:
-}
-
-src_install() {
-	local zic=""
-	tc-is-cross-compiler && zic="zic=${S}-native/zic"
-	_emake install ${zic} DESTDIR="${D}" LIBDIR="/nukeit"
-	rm -rf "${D}/nukeit" "${ED}/etc" || die
-
-	insinto /usr/share/zoneinfo
-	doins "${S}"/leap-seconds.list
-
-	# Delete man pages installed by man-pages package.
-	rm "${ED}"/usr/share/man/man5/tzfile.5* "${ED}"/usr/share/man/man8/{tzselect,zdump,zic}.8 || die
-	dodoc CONTRIBUTING README NEWS *.html
-}
-
-configure_tz_data() {
-	# Make sure the /etc/localtime file does not get stale, bug #127899
-	local tz src="${EROOT}/etc/timezone" etc_lt="${EROOT}/etc/localtime"
-
-	# If it's a symlink, assume the user knows what they're doing and
-	# they're managing it themselves, bug #511474
-	if [[ -L "${etc_lt}" ]] ; then
-		einfo "Skipping update: ${etc_lt} is a symlink."
-		if [[ -e ${src} ]]; then
-			einfo "Removing ${src}."
-			rm "${src}"
-		fi
-		return 0
-	fi
-
-	if [[ ! -e ${src} ]] ; then
-		einfo "Skipping update: ${src} does not exist."
-		return 0
-	fi
-
-	tz=$(sed -e 's:#.*::' -e 's:[[:space:]]*::g' -e '/^$/d' "${src}")
-
-	if [[ -z ${tz} ]]; then
-		einfo "Skipping update: ${src} is empty."
-		return 0
-	fi
-
-	local tzpath="${EROOT}/usr/share/zoneinfo/${tz}"
-
-	if [[ ! -e ${tzpath} ]]; then
-		ewarn "The timezone specified in ${src} is not valid!"
-		return 1
-	fi
-
-	if [[ -f ${etc_lt} ]]; then
-		# If a regular file already exists, copy over it.
-		ewarn "Found a regular file at ${etc_lt}."
-		ewarn "Some software may expect a symlink instead."
-		ewarn "Convert it to a symlink by removing the file and running:"
-		ewarn "  emerge --config sys-libs/timezone-data"
-		einfo "Copying ${tzpath} to ${etc_lt}."
-		cp -f "${tzpath}" "${etc_lt}"
-	else
-		# Otherwise, create a symlink and remove the timezone file.
-		tzpath="../usr/share/zoneinfo/${tz}"
-		einfo "Linking ${tzpath} at ${etc_lt}."
-		if ln -snf "${tzpath}" "${etc_lt}"; then
-			einfo "Removing ${src}."
-			rm -f "${src}"
-		fi
-	fi
-}
-
-pkg_config() {
-	configure_tz_data
-}
-
-pkg_postinst() {
-	configure_tz_data
-}
diff --git a/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2025b.ebuild b/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2025b.ebuild
deleted file mode 100644
index 3315c169fc..0000000000
--- a/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2025b.ebuild
+++ /dev/null
@@ -1,169 +0,0 @@
-# Copyright 1999-2025 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-inherit toolchain-funcs flag-o-matic unpacker
-
-DESCRIPTION="Timezone data (/usr/share/zoneinfo) and utilities (tzselect/zic/zdump)"
-HOMEPAGE="https://www.iana.org/time-zones"
-SRC_URI="
-	https://data.iana.org/time-zones/releases/tzdb-${PV}.tar.lz
-"
-S="${WORKDIR}"/tzdb-${PV}
-
-LICENSE="BSD public-domain"
-SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 ~sparc x86 ~arm64-macos ~x64-macos ~x64-solaris"
-IUSE="nls leaps-timezone zic-slim"
-
-DEPEND="nls? ( virtual/libintl )"
-RDEPEND="
-	${DEPEND}
-	!sys-libs/glibc[vanilla(+)]
-"
-BDEPEND="$(unpacker_src_uri_depends)"
-
-src_prepare() {
-	default
-
-	if tc-is-cross-compiler ; then
-		cp -pR "${S}" "${S}"-native || die
-	fi
-}
-
-src_configure() {
-	tc-export CC
-
-	# bug #471102
-	append-lfs-flags
-
-	if use elibc_Darwin ; then
-		# bug #138251
-		append-cppflags -DSTD_INSPIRED
-	fi
-
-	append-cppflags -DHAVE_GETTEXT=$(usex nls 1 0) -DTZ_DOMAIN='\"libc\"'
-
-	# Upstream default is 'slim', but it breaks quite a few programs,
-	# that parse /etc/localtime directly: bug #747538.
-	append-cppflags -DZIC_BLOAT_DEFAULT='\"'$(usex zic-slim slim fat)'\"'
-
-	LDLIBS=""
-	if use nls ; then
-		# See if an external libintl is available. bug #154181, bug #578424
-		local c="${T}/test"
-		echo 'int main(){}' > "${c}.c" || die
-		if $(tc-getCC) ${CPPFLAGS} ${CFLAGS} ${LDFLAGS} "${c}.c" -o "${c}" -lintl 2>/dev/null ; then
-			LDLIBS+=" -lintl"
-		fi
-	fi
-}
-
-_emake() {
-	emake \
-		REDO=$(usex leaps-timezone posix_right posix_only) \
-		TOPDIR="${EPREFIX}" \
-		ZICDIR='$(TOPDIR)/usr/bin' \
-		"$@"
-}
-
-src_compile() {
-	tc-export AR CC RANLIB
-
-	_emake \
-		CFLAGS="${CFLAGS} -std=gnu99 ${CPPFLAGS}" \
-		LDFLAGS="${LDFLAGS}" \
-		LDLIBS="${LDLIBS}"
-
-	if tc-is-cross-compiler ; then
-		_emake -C "${S}"-native \
-			AR="$(tc-getBUILD_AR)" \
-			CC="$(tc-getBUILD_CC)" \
-			RANLIB="$(tc-getBUILD_RANLIB)" \
-			CFLAGS="${BUILD_CFLAGS} ${BUILD_CPPFLAGS}" \
-			LDFLAGS="${BUILD_LDFLAGS}" \
-			LDLIBS="${LDLIBS}" \
-			zic
-	fi
-}
-
-src_test() {
-	# CURL is used for extended/web based tests. Punt on them.
-	emake check CURL=:
-}
-
-src_install() {
-	local zic=""
-	tc-is-cross-compiler && zic="zic=${S}-native/zic"
-	_emake install ${zic} DESTDIR="${D}" LIBDIR="/nukeit"
-	rm -rf "${D}/nukeit" "${ED}/etc" || die
-
-	insinto /usr/share/zoneinfo
-	doins "${S}"/leap-seconds.list
-
-	# Delete man pages installed by man-pages package.
-	rm "${ED}"/usr/share/man/man5/tzfile.5* "${ED}"/usr/share/man/man8/{tzselect,zdump,zic}.8 || die
-	dodoc CONTRIBUTING README NEWS *.html
-}
-
-configure_tz_data() {
-	# Make sure the /etc/localtime file does not get stale, bug #127899
-	local tz src="${EROOT}/etc/timezone" etc_lt="${EROOT}/etc/localtime"
-
-	# If it's a symlink, assume the user knows what they're doing and
-	# they're managing it themselves, bug #511474
-	if [[ -L "${etc_lt}" ]] ; then
-		einfo "Skipping update: ${etc_lt} is a symlink."
-		if [[ -e ${src} ]]; then
-			einfo "Removing ${src}."
-			rm "${src}"
-		fi
-		return 0
-	fi
-
-	if [[ ! -e ${src} ]] ; then
-		einfo "Skipping update: ${src} does not exist."
-		return 0
-	fi
-
-	tz=$(sed -e 's:#.*::' -e 's:[[:space:]]*::g' -e '/^$/d' "${src}")
-
-	if [[ -z ${tz} ]]; then
-		einfo "Skipping update: ${src} is empty."
-		return 0
-	fi
-
-	local tzpath="${EROOT}/usr/share/zoneinfo/${tz}"
-
-	if [[ ! -e ${tzpath} ]]; then
-		ewarn "The timezone specified in ${src} is not valid!"
-		return 1
-	fi
-
-	if [[ -f ${etc_lt} ]]; then
-		# If a regular file already exists, copy over it.
-		ewarn "Found a regular file at ${etc_lt}."
-		ewarn "Some software may expect a symlink instead."
-		ewarn "Convert it to a symlink by removing the file and running:"
-		ewarn "  emerge --config sys-libs/timezone-data"
-		einfo "Copying ${tzpath} to ${etc_lt}."
-		cp -f "${tzpath}" "${etc_lt}"
-	else
-		# Otherwise, create a symlink and remove the timezone file.
-		tzpath="../usr/share/zoneinfo/${tz}"
-		einfo "Linking ${tzpath} at ${etc_lt}."
-		if ln -snf "${tzpath}" "${etc_lt}"; then
-			einfo "Removing ${src}."
-			rm -f "${src}"
-		fi
-	fi
-}
-
-pkg_config() {
-	configure_tz_data
-}
-
-pkg_postinst() {
-	configure_tz_data
-}
diff --git a/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2026a.ebuild b/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2026a.ebuild
index 782a7c5644..92ec75a9da 100644
--- a/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2026a.ebuild
+++ b/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2026a.ebuild
@@ -14,7 +14,7 @@ S="${WORKDIR}"/tzdb-${PV}
 
 LICENSE="BSD public-domain"
 SLOT="0"
-KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~arm64-macos ~x64-macos ~x64-solaris"
+KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 ~sparc x86 ~arm64-macos ~x64-macos ~x64-solaris"
 IUSE="nls leaps-timezone zic-slim"
 
 DEPEND="nls? ( virtual/libintl )"
diff --git a/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2025c.ebuild b/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2026b.ebuild
similarity index 96%
rename from sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2025c.ebuild
rename to sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2026b.ebuild
index 92ec75a9da..782a7c5644 100644
--- a/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2025c.ebuild
+++ b/sdk_container/src/third_party/portage-stable/sys-libs/timezone-data/timezone-data-2026b.ebuild
@@ -14,7 +14,7 @@ S="${WORKDIR}"/tzdb-${PV}
 
 LICENSE="BSD public-domain"
 SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 ~sparc x86 ~arm64-macos ~x64-macos ~x64-solaris"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~arm64-macos ~x64-macos ~x64-solaris"
 IUSE="nls leaps-timezone zic-slim"
 
 DEPEND="nls? ( virtual/libintl )"