diff --git a/.github/workflows/nginx-buildbot.yml b/.github/workflows/nginx-buildbot.yml
index ad99dd9..ed9de05 100644
--- a/.github/workflows/nginx-buildbot.yml
+++ b/.github/workflows/nginx-buildbot.yml
@@ -44,15 +44,13 @@ jobs:
     needs: check-if-allowed
     strategy:
       matrix:
-        os: [ alpine-3.19, alpine-3.20, amazonlinux-2, amazonlinux-2023, debian-11, debian-12, freebsd-14, rhel-8, rhel-9, sles-12, ubuntu-20.04, ubuntu-22.04, ubuntu-24.04 ]
+        os: [ alpine-3.19, alpine-3.20, amazonlinux-2, amazonlinux-2023, debian-11, debian-12, freebsd-14, rhel-8, rhel-9, ubuntu-20.04, ubuntu-22.04, ubuntu-24.04 ]
         arch: [ amd64, arm64 ]
         subarch: [ '' ]
         sanitizer: [ '' ]
         exclude:
           - os: freebsd-14 # we don't have an arm64 builder for freebsd-14 yet
             arch: arm64
-          - os: sles-12 # we don't have an arm64 for SLES 12
-            arch: arm64
         include:
           - os: debian-12
             arch: amd64
@@ -65,11 +63,11 @@ jobs:
     steps:
       - name: Check out nginx sources
         uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
-        if: ${{ matrix.os == 'amazonlinux-2' || matrix.os == 'sles-12' }}
+        if: ${{ matrix.os == 'amazonlinux-2' }}
 
       - name: Check out nginx sources
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
-        if: ${{ matrix.os != 'amazonlinux-2' && matrix.os != 'sles-12' }}
+        if: ${{ matrix.os != 'amazonlinux-2' }}
 
       - name: Set the defaults and set up environment
         run: |
@@ -111,10 +109,6 @@ jobs:
               "CC_OPT": "$(rpm --eval %{optflags}) $(pcre2-config --cflags) -fPIC",
               "LD_OPT": "-Wl,-z,relro -Wl,-z,now"
             },
-            "sles-12": {
-              "CC_OPT": "$(rpm --eval %{optflags}) $(pcre2-config --cflags) -fPIC",
-              "LD_OPT": "-Wl,-z,relro -Wl,-z,now"
-            },
             "ubuntu-20.04": {
               "CC_OPT": "$(DEB_BUILD_MAINT_OPTIONS=hardening=+all DEB_CFLAGS_MAINT_APPEND=-fPIC DEB_LDFLAGS_MAINT_APPEND=-Wl,--as-needed dpkg-buildflags --get CFLAGS)",
               "LD_OPT": "$(DEB_BUILD_MAINT_OPTIONS=hardening=+all DEB_CFLAGS_MAINT_APPEND=-fPIC DEB_LDFLAGS_MAINT_APPEND=-Wl,--as-needed dpkg-buildflags --get LDFLAGS)"
@@ -251,9 +245,6 @@ jobs:
                 NGINX_CONFIGURE_ADD_GEOIP=""
                 NGINX_CONFIGURE_ADD_GEOIP_MODULES=""
                 ;;
-              sles-*)
-                NGINX_CONFIGURE_ADD_COMMON=${NGINX_CONFIGURE_ADD_COMMON%%--with-http_v3_module}
-                ;;
             esac
 
             case "${{ matrix.subarch }}" in
diff --git a/.github/workflows/njs-buildbot.yml b/.github/workflows/njs-buildbot.yml
index 3aeab93..fdc71cd 100644
--- a/.github/workflows/njs-buildbot.yml
+++ b/.github/workflows/njs-buildbot.yml
@@ -40,14 +40,12 @@ jobs:
     needs: check-if-allowed
     strategy:
       matrix:
-        os: [ alpine-3.19, amazonlinux-2, amazonlinux-2023, debian-11, debian-12, freebsd-14, rhel-8, rhel-9, sles-12, ubuntu-20.04, ubuntu-22.04, ubuntu-24.04 ]
+        os: [ alpine-3.19, amazonlinux-2, amazonlinux-2023, debian-11, debian-12, freebsd-14, rhel-8, rhel-9, ubuntu-20.04, ubuntu-22.04, ubuntu-24.04 ]
         arch: [ amd64, arm64 ]
         subarch: [ '' ]
         exclude:
           - os: freebsd-14 # we don't have arm64 builder for freebsd-14 yet
             arch: arm64
-          - os: sles-12 # we don't have an arm64 for SLES 12
-            arch: arm64
         include:
           - os: debian-12
             arch: amd64
@@ -57,11 +55,11 @@ jobs:
     steps:
       - name: checkout v3
         uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
-        if: ${{ matrix.os == 'amazonlinux-2' || matrix.os == 'sles-12' }}
+        if: ${{ matrix.os == 'amazonlinux-2' }}
 
       - name: checkout v4
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
-        if: ${{ matrix.os != 'amazonlinux-2' && matrix.os != 'sles-12' }}
+        if: ${{ matrix.os != 'amazonlinux-2' }}
 
       - name: Set the defaults and set up environment
         run: |
@@ -117,12 +115,6 @@ jobs:
               "LD_OPT": "-Wl,-z,relro -Wl,-z,now",
               "type": "rpm"
             },
-            "sles-12": {
-              "NGINX_CONFIGURE_CMD_APPEND": "--with-http_geoip_module --with-stream_geoip_module",
-              "CC_OPT": "$(rpm --eval %{optflags}) $(pcre2-config --cflags) -fPIC",
-              "LD_OPT": "-Wl,-z,relro -Wl,-z,now",
-              "type": "rpm"
-            },
             "ubuntu-20.04": {
               "NGINX_CONFIGURE_CMD_APPEND": "--with-http_geoip_module --with-stream_geoip_module",
               "DEB_BUILD_MAINT_OPTIONS": "hardening=+all",
@@ -208,7 +200,6 @@ jobs:
           git clone https://github.com/nginx/nginx-tests
 
       - name: Check out and build quickjs
-        if: ${{ matrix.os != 'sles-12' }}
         run: |
           git clone https://github.com/bellard/quickjs
           cd quickjs
@@ -228,7 +219,6 @@ jobs:
           $MAKE_UTILITY clean
 
       - name: Configure and make njs with quickjs
-        if: ${{ matrix.os != 'sles-12' }}
         run: |
           ./configure \
                     --with-quickjs \
@@ -238,7 +228,6 @@ jobs:
           $MAKE_UTILITY -j$(nproc)
 
       - name: Test njs with quickjs
-        if: ${{ matrix.os != 'sles-12' }}
         run: |
           $MAKE_UTILITY test
           $MAKE_UTILITY clean
@@ -264,7 +253,6 @@ jobs:
           TEST_NGINX_VERBOSE: 1
 
       - name: Configure and build nginx and njs modules with quickjs, static modules
-        if: ${{ matrix.os != 'sles-12' }}
         run: |
           cd nginx-source
           $NGINX_CONFIGURE_CMD \
@@ -275,7 +263,6 @@ jobs:
           $MAKE_UTILITY -j$(nproc)
 
       - name: Test njs modules, static modules
-        if: ${{ matrix.os != 'sles-12' }}
         run: |
           ulimit -c unlimited
           prove -v -j$(nproc) -Inginx-tests/lib --state=save nginx/t . || prove -v -Inginx-tests/lib --state=failed
@@ -284,7 +271,6 @@ jobs:
           TEST_NGINX_VERBOSE: 1
 
       - name: Test njs modules (js_engine qjs), static modules
-        if: ${{ matrix.os != 'sles-12' }}
         run: |
           ulimit -c unlimited
           prove -v -j$(nproc) -Inginx-tests/lib --state=save nginx/t . || prove -v -Inginx-tests/lib --state=failed
@@ -295,7 +281,6 @@ jobs:
           TEST_NGINX_VERBOSE: 1
 
       - name: Configure and build nginx and njs modules with quickjs, dynamic modules
-        if: ${{ matrix.os != 'sles-12' }}
         run: |
           cd nginx-source
           $NGINX_CONFIGURE_CMD \
@@ -307,7 +292,6 @@ jobs:
           $MAKE_UTILITY -j$(nproc)
 
       - name: Test njs modules, dynamic modules
-        if: ${{ matrix.os != 'sles-12' }}
         run: |
           ulimit -c unlimited
           prove -v -j$(nproc) -Inginx-tests/lib --state=save nginx/t . || prove -v -Inginx-tests/lib --state=failed
@@ -317,7 +301,6 @@ jobs:
           TEST_NGINX_VERBOSE: 1
 
       - name: Test njs modules (js_engine qjs), dynamic modules
-        if: ${{ matrix.os != 'sles-12' }}
         run: |
           ulimit -c unlimited
           prove -v -j$(nproc) -Inginx-tests/lib --state=save nginx/t . || prove -v -Inginx-tests/lib --state=failed