diff --git a/poky/meta/conf/bitbake.conf b/poky/meta/conf/bitbake.conf
index 62cdd9a..a1f0f62 100644
--- a/poky/meta/conf/bitbake.conf
+++ b/poky/meta/conf/bitbake.conf
@@ -676,7 +676,7 @@
 export PERL_HASH_SEED = "0"
 export SOURCE_DATE_EPOCH ?= "${@get_source_date_epoch_value(d)}"
 # A SOURCE_DATE_EPOCH of '0' might be misinterpreted as no SDE
-export SOURCE_DATE_EPOCH_FALLBACK ??= "1302044400"
+SOURCE_DATE_EPOCH_FALLBACK ??= "1302044400"
 REPRODUCIBLE_TIMESTAMP_ROOTFS ??= "1520598896"
 
 ##################################################################
diff --git a/poky/meta/conf/distro/include/maintainers.inc b/poky/meta/conf/distro/include/maintainers.inc
index 57319cd..5b7ce77 100644
--- a/poky/meta/conf/distro/include/maintainers.inc
+++ b/poky/meta/conf/distro/include/maintainers.inc
@@ -306,6 +306,7 @@
 RECIPE_MAINTAINER:pn-libassuan = "Unassigned <unassigned@yoctoproject.org>"
 RECIPE_MAINTAINER:pn-libatomic-ops = "Anuj Mittal <anuj.mittal@intel.com>"
 RECIPE_MAINTAINER:pn-libbsd = "Yi Zhao <yi.zhao@windriver.com>"
+RECIPE_MAINTAINER:pn-libc-test = "Chase Qi <chase.qi@linaro.org>"
 RECIPE_MAINTAINER:pn-libcap = "Yi Zhao <yi.zhao@windriver.com>"
 RECIPE_MAINTAINER:pn-libcap-ng = "Yi Zhao <yi.zhao@windriver.com>"
 RECIPE_MAINTAINER:pn-libcap-ng-python = "Yi Zhao <yi.zhao@windriver.com>"
diff --git a/poky/meta/conf/distro/include/ptest-packagelists.inc b/poky/meta/conf/distro/include/ptest-packagelists.inc
index 32b0e529..3c9ff43 100644
--- a/poky/meta/conf/distro/include/ptest-packagelists.inc
+++ b/poky/meta/conf/distro/include/ptest-packagelists.inc
@@ -105,6 +105,7 @@
 
 PTESTS_SLOW:remove:riscv64 = "valgrind-ptest"
 PTESTS_PROBLEMS:append:riscv64 = "valgrind-ptest"
+PTESTS_SLOW:append:libc-musl = " libc-test-ptest"
 
 #    ruby-ptest \ # Timeout
 #    lz4-ptest \ # Needs a rewrite
diff --git a/poky/meta/conf/distro/include/tcmode-default.inc b/poky/meta/conf/distro/include/tcmode-default.inc
index f3e2820..4345701 100644
--- a/poky/meta/conf/distro/include/tcmode-default.inc
+++ b/poky/meta/conf/distro/include/tcmode-default.inc
@@ -26,8 +26,8 @@
 GOVERSION ?= "1.19%"
 # This can not use wildcards like 8.0.% since it is also used in mesa to denote
 # llvm version being used, so always bump it with llvm recipe version bump
-LLVMVERSION ?= "15.0.1"
-RUSTVERSION ?= "1.64%"
+LLVMVERSION ?= "15.0.4"
+RUSTVERSION ?= "1.65%"
 
 PREFERRED_VERSION_gcc ?= "${GCCVERSION}"
 PREFERRED_VERSION_gcc-cross-${TARGET_ARCH} ?= "${GCCVERSION}"