diff --git a/adoptium.py b/adoptium.py
index 83694ce..a51a07d 100755
--- a/adoptium.py
+++ b/adoptium.py
@@ -118,25 +118,13 @@ if __name__ == "__main__":
         ],
         check=True)
     print("APT finished", flush=True)
-    # =================== YUM repos ==========================
-    # "$yum_sync" "${BASE_URL}/rpm/centos/@{os_ver}/@{arch}" 7 Adopitum x86_64,aarch64 "centos@{os_ver}-@{arch}" "$BASE_PATH/rpm"
-    sp.run([str(here/"yum-sync.py"),
-        BASE_URL+'/rpm/centos/@{os_ver}/@{arch}',
-        "--download-repodata",
-        '7',
-        'Adoptium',
-        'x86_64,aarch64',
-        "centos@{os_ver}-@{arch}",
-        f"{BASE_PATH}/rpm"
-        ],
-        check=True) 
 
     # =================== YUM repos ==========================
     # "$yum_sync" "${BASE_URL}/rpm/rhel/@{os_ver}/@{arch}" 7-9 Adopitum x86_64,aarch64 "rhel@{os_ver}-@{arch}" "$BASE_PATH/rpm"
     sp.run([str(here/"yum-sync.py"),
         BASE_URL+'/rpm/rhel/@{os_ver}/@{arch}',
         "--download-repodata",
-        '7-9',
+        '9',
         'Adoptium',
         'x86_64,aarch64',
         "rhel@{os_ver}-@{arch}",
diff --git a/apt-sync.py b/apt-sync.py
index d010bb9..5005798 100755
--- a/apt-sync.py
+++ b/apt-sync.py
@@ -30,7 +30,7 @@ if USE_ADDR_FAMILY != '':
 
 OS_TEMPLATE = {
     'ubuntu-lts': ["focal", "jammy", "noble"],
-    'debian-current': ["buster", "bullseye", "bookworm"],
+    'debian-current': ["bullseye", "bookworm"],
     'debian-latest2': ["bullseye", "bookworm"],
     'debian-latest': ["bookworm"],
 }
diff --git a/chef.sh b/chef.sh
index 51ab110..4fecbaf 100755
--- a/chef.sh
+++ b/chef.sh
@@ -13,7 +13,7 @@ YUM_PATH="${BASE_PATH}/yum/stable"
 APT_PATH="${BASE_PATH}/apt/stable"
 export REPO_SIZE_FILE=/tmp/reposize.$RANDOM
 
-"$yum_sync" "${UPSTREAM}/yum/stable/el/@{os_ver}/@{arch}" 7 chef x86_64 "stable-el@{os_ver}-@{arch}" "$YUM_PATH"
+"$yum_sync" "${UPSTREAM}/yum/stable/el/@{os_ver}/@{arch}" 9 chef x86_64 "stable-el@{os_ver}-@{arch}" "$YUM_PATH"
 echo "YUM finished"
 
 "$apt_sync" --delete "${UPSTREAM}/apt/stable" @ubuntu-lts,@debian-current main amd64,i386,aarch64 "$APT_PATH"
diff --git a/erlang.sh b/erlang.sh
index 4a6c02c..9ad1bdb 100755
--- a/erlang.sh
+++ b/erlang.sh
@@ -16,7 +16,7 @@ export REPO_SIZE_FILE=/tmp/reposize.$RANDOM
 
 # generate codenames for repos
 ubuntu_os=(jammy)
-debian_os=(buster bullseye)
+debian_os=(bullseye)
 deb_suffixes=(
     mongooseim-5
     mongooseim-6
@@ -25,6 +25,7 @@ deb_suffixes=(
     esl-erlang-26
     elixir-1.14
     elixir-1.15
+    elixir-1.16
 )
 
 function join_by { local IFS="$1"; shift; echo "$*"; }
diff --git a/gitlab-ce.sh b/gitlab-ce.sh
index a8ff348..7a211c0 100755
--- a/gitlab-ce.sh
+++ b/gitlab-ce.sh
@@ -15,7 +15,7 @@ UBUNTU_PATH="${BASE_PATH}/ubuntu/"
 DEBIAN_PATH="${BASE_PATH}/debian/"
 export REPO_SIZE_FILE=/tmp/reposize.$RANDOM
 
-"$yum_sync" "${UPSTREAM}/el/@{os_ver}/@{arch}/" 7,9 "gitlab" x86_64 "el@{os_ver}" "$YUM_PATH"
+"$yum_sync" "${UPSTREAM}/el/@{os_ver}/@{arch}/" 9 "gitlab" x86_64 "el@{os_ver}" "$YUM_PATH"
 echo "YUM finished"
 
 "$apt_sync" --delete "${UPSTREAM}/ubuntu" @ubuntu-lts main amd64,i386 "$UBUNTU_PATH"
diff --git a/gitlab-runner.sh b/gitlab-runner.sh
index 1547e40..818c324 100755
--- a/gitlab-runner.sh
+++ b/gitlab-runner.sh
@@ -15,7 +15,7 @@ UBUNTU_PATH="${BASE_PATH}/ubuntu/"
 DEBIAN_PATH="${BASE_PATH}/debian/"
 export REPO_SIZE_FILE=/tmp/reposize.$RANDOM
 
-"$yum_sync" "${UPSTREAM}/el/@{os_ver}/@{arch}" 7,9 gitlab-runner x86_64,aarch64 "el@{os_ver}-@{arch}" "$YUM_PATH"
+"$yum_sync" "${UPSTREAM}/el/@{os_ver}/@{arch}" 9 gitlab-runner x86_64,aarch64 "el@{os_ver}-@{arch}" "$YUM_PATH"
 echo "YUM finished"
 
 "$apt_sync" --delete "${UPSTREAM}/ubuntu" @ubuntu-lts main amd64,i386,arm64 "$UBUNTU_PATH"
diff --git a/influxdata.sh b/influxdata.sh
index f55c856..192eb62 100755
--- a/influxdata.sh
+++ b/influxdata.sh
@@ -27,7 +27,7 @@ echo "Debian/Ubuntu finished"
 
 
 # =================== YUM/DNF repos ==========================
-"$yum_sync" "${BASE_URL}/rhel/@{os_ver}/@{arch}/stable/" 7 influxdata x86_64 "el@{os_ver}-@{arch}" "$YUM_PATH"
+"$yum_sync" "${BASE_URL}/rhel/@{os_ver}/@{arch}/stable/" 9 influxdata x86_64 "el@{os_ver}-@{arch}" "$YUM_PATH"
 echo "YUM finished"
 
 "${_here}/helpers/size-sum.sh" $REPO_SIZE_FILE --rm
diff --git a/llvm-apt.sh b/llvm-apt.sh
index 2cc05f6..5c57084 100755
--- a/llvm-apt.sh
+++ b/llvm-apt.sh
@@ -10,7 +10,7 @@ BASE_URL=${TUNASYNC_UPSTREAM_URL:-"https://apt.llvm.org"}
 
 export REPO_SIZE_FILE=/tmp/reposize.$RANDOM
 
-for os in "jammy" "noble" "buster" "bullseye" "bookworm"; do
+for os in "jammy" "noble" "bullseye" "bookworm"; do
     prefix=llvm-toolchain-$os
     "$apt_sync" --delete "$BASE_URL/$os" $prefix,$prefix-9,$prefix-10,$prefix-11,$prefix-12,$prefix-13,$prefix-14,$prefix-15,$prefix-16,$prefix-17,$prefix-18 main amd64,arm64 "$BASE_PATH/$os"
 done
diff --git a/mongodb.sh b/mongodb.sh
index 0513e1e..b715b5d 100755
--- a/mongodb.sh
+++ b/mongodb.sh
@@ -19,7 +19,7 @@ export REPO_SIZE_FILE=/tmp/reposize.$RANDOM
 
 components=$(printf ",%s" "${MONGO_VERSIONS[@]}")
 components=${components:1}
-"$yum_sync" "${BASE_URL}/yum/redhat/@{os_ver}/mongodb-org/@{comp}/@{arch}/" 7,9 "$components" x86_64 "el@{os_ver}-@{comp}" "$YUM_PATH"
+"$yum_sync" "${BASE_URL}/yum/redhat/@{os_ver}/mongodb-org/@{comp}/@{arch}/" 9 "$components" x86_64 "el@{os_ver}-@{comp}" "$YUM_PATH"
 pushd "${YUM_PATH}"
 for stable in el*-${STABLE_VERSION}; do
 	# e.g. "el8" -> "el8-4.2"
diff --git a/virtualbox.sh b/virtualbox.sh
index 10e4093..b05a1ce 100755
--- a/virtualbox.sh
+++ b/virtualbox.sh
@@ -19,7 +19,7 @@ export REPO_SIZE_FILE=/tmp/reposize.$RANDOM
 
 # === download rhel packages ====
 
-"$yum_sync" "${BASE_URL}/rpm/el/@{os_ver}/@{arch}" 7 VirtualBox x86_64 "el@{os_ver}" "$YUM_PATH"
+"$yum_sync" "${BASE_URL}/rpm/el/@{os_ver}/@{arch}" 9 VirtualBox x86_64 "el@{os_ver}" "$YUM_PATH"
 echo "YUM finished"
 
 # === download deb packages ====