diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/CMakeLists.txt b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/CMakeLists.txt
index 02bba97d00a..6d12f59f9ef 100644
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/CMakeLists.txt
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/CMakeLists.txt
@@ -301,7 +301,7 @@ if(NOT WITH_RUNTIME_CPU_DETECTION)
         message(STATUS "WARNING: Microsoft Visual Studio does not support compile time detection of CPU features for \"/arch\" before \"AVX\"")
         # Workaround for MSVC. By default MSVC does not define the __SSE*__ macros.
         # Fix it if AVX is enabled.
-        set(CMAKE_REQUIRED_FLAGS "${NATIVEFLAG}")
+        set(CMAKE_REQUIRED_FLAGS "${NATIVEFLAG} ${ZNOLTOFLAG}")
         check_c_source_compiles(
             "#ifndef __AVX__
             #  error \"AVX is not enabled.\"
@@ -491,6 +491,7 @@ endif()
 #
 # Check for __builtin_assume_aligned(x,n) support in the compiler
 #
+set(CMAKE_REQUIRED_FLAGS ${ZNOLTOFLAG})
 check_c_source_compiles(
     "char *test(char *buffer) {
         char *abuffer = __builtin_assume_aligned(buffer,64);
@@ -503,10 +504,12 @@ check_c_source_compiles(
 if(HAVE_BUILTIN_ASSUME_ALIGNED)
     add_definitions(-DHAVE_BUILTIN_ASSUME_ALIGNED)
 endif()
+set(CMAKE_REQUIRED_FLAGS)
 
 #
 # check for __builtin_ctz() support in the compiler
 #
+set(CMAKE_REQUIRED_FLAGS ${ZNOLTOFLAG})
 check_c_source_compiles(
     "int main(void) {
         unsigned int zero = 0;
@@ -519,10 +522,12 @@ check_c_source_compiles(
 if(HAVE_BUILTIN_CTZ)
     add_definitions(-DHAVE_BUILTIN_CTZ)
 endif()
+set(CMAKE_REQUIRED_FLAGS)
 
 #
 # check for __builtin_ctzll() support in the compiler
 #
+set(CMAKE_REQUIRED_FLAGS ${ZNOLTOFLAG})
 check_c_source_compiles(
     "int main(void) {
         unsigned int zero = 0;
@@ -535,6 +540,7 @@ check_c_source_compiles(
 if(HAVE_BUILTIN_CTZLL)
     add_definitions(-DHAVE_BUILTIN_CTZLL)
 endif()
+set(CMAKE_REQUIRED_FLAGS)
 
 #
 # check for ptrdiff_t support
@@ -1192,8 +1198,6 @@ foreach(ZLIB_INSTALL_LIBRARY ${ZLIB_INSTALL_LIBRARIES})
     target_include_directories(${ZLIB_INSTALL_LIBRARY} PUBLIC
         "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}$<SEMICOLON>${CMAKE_CURRENT_SOURCE_DIR}>"
         "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>")
-    target_include_directories(${ZLIB_INSTALL_LIBRARY} PRIVATE "${ARCHDIR}")
-    target_include_directories(${ZLIB_INSTALL_LIBRARY} PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/arch/generic")
 endforeach()
 
 if(FALSE) # ITK change: don't give custom name to the library
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/power/crc32_power8.c b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/power/crc32_power8.c
index 1cb5f299f3d..28c59b663c7 100644
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/power/crc32_power8.c
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/power/crc32_power8.c
@@ -32,9 +32,7 @@
 #include "crc32_constants.h"
 #include "crc32_braid_tbl.h"
 
-#if defined (__clang__)
-#include "fallback_builtins.h"
-#endif
+#include "power_intrins.h"
 
 #define MAX_SIZE    32768
 #define VMX_ALIGN	16
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/power/fallback_builtins.h b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/power/power_intrins.h
similarity index 91%
rename from Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/power/fallback_builtins.h
rename to Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/power/power_intrins.h
index ed9584617b1..cf71986563a 100644
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/power/fallback_builtins.h
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/power/power_intrins.h
@@ -9,9 +9,10 @@
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
-#ifndef POWER_BUILTINS_H
-#define POWER_BUILTINS_H
+#ifndef POWER_INTRINS_H
+#define POWER_INTRINS_H
 
+#if defined (__clang__)
 /*
  * These stubs fix clang incompatibilities with GCC builtins.
  */
@@ -29,3 +30,5 @@ vec_ld(int __a, const __vector unsigned long long* __b) {
 }
 
 #endif
+
+#endif
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/riscv/riscv_features.c b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/riscv/riscv_features.c
index 62658af70b1..f9957d19ccc 100644
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/riscv/riscv_features.c
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/riscv/riscv_features.c
@@ -25,7 +25,7 @@ int Z_INTERNAL is_kernel_version_greater_or_equal_to_6_5() {
         return 0;
     }
 
-    if (major > 6 || major == 6 && minor >= 5)
+    if (major > 6 || (major == 6 && minor >= 5))
         return 1;
     return 0;
 }
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/s390_functions.h b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/s390_functions.h
index e9c67978f0a..e6855cd7011 100644
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/s390_functions.h
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/s390_functions.h
@@ -7,8 +7,15 @@
 
 #ifdef S390_CRC32_VX
 uint32_t crc32_s390_vx(uint32_t crc, const uint8_t *buf, size_t len);
+
+#ifdef __clang__
+#  if ((__clang_major__ == 18) || (__clang_major__ == 19 && (__clang_minor__ < 1 || (__clang_minor__ == 1 && __clang_patchlevel__ < 2))))
+# error CRC32-VX optimizations are broken due to compiler bug in Clang versions: 18.0.0 <= clang_version < 19.1.2. \
+        Either disable the zlib-ng CRC32-VX optimization, or switch to another compiler/compiler version.
+#  endif
 #endif
 
+#endif
 
 #ifdef DISABLE_RUNTIME_CPU_DETECTION
 #  if defined(S390_CRC32_VX) && defined(__zarch__) && __ARCH__ >= 11 && defined(__VX__)
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/self-hosted-builder/actions-runner b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/self-hosted-builder/actions-runner
index a1d031bcf88..8d194bac3fb 100755
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/self-hosted-builder/actions-runner
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/self-hosted-builder/actions-runner
@@ -44,6 +44,7 @@ if [ $REG_TOKEN = "null" ]; then
 fi
 
 # (Re-)register the runner.
+./config.sh remove --token "$REG_TOKEN" || true
 set -x
 ./config.sh \
     --url "https://github.com/$REPO" \
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/self-hosted-builder/actions-runner-rebuild.sh b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/self-hosted-builder/actions-runner-rebuild.sh
index 9efd6a0989a..703448fca0f 100755
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/self-hosted-builder/actions-runner-rebuild.sh
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/self-hosted-builder/actions-runner-rebuild.sh
@@ -1,43 +1,54 @@
 #!/usr/bin/bash
 set -ex
 
-if [ ! -f /etc/actions-runner ]; then
-    echo "Error: /etc/actions-runner env file not found"
-    exit 1
-fi
+TMPDIR="$(mktemp -d)"
 
-# Use local file if run interactively, otherwise wget the current one.
-if [ -t 0 ] ; then
-    if [ ! -f actions-runner.Dockerfile ]; then
-        echo "Error: actions-runner.Dockerfile not found"
-        exit 1
-    fi
-    DOCKERFILE=actions-runner.Dockerfile
+if [ -f actions-runner.Dockerfile ]; then
+    MODE=1
+    cp actions-runner.Dockerfile actions-runner entrypoint $TMPDIR
+    cd $TMPDIR
 else
-    DOCKERFILE="$(mktemp)"
-    wget https://raw.githubusercontent.com/zlib-ng/zlib-ng/refs/heads/develop/arch/s390/self-hosted-builder/actions-runner.Dockerfile -O $DOCKERFILE
+    MODE=2
+    cd $TMPDIR
+    wget https://raw.githubusercontent.com/zlib-ng/zlib-ng/refs/heads/develop/arch/s390/self-hosted-builder/actions-runner.Dockerfile
+    wget https://raw.githubusercontent.com/zlib-ng/zlib-ng/refs/heads/develop/arch/s390/self-hosted-builder/actions-runner
+    wget https://raw.githubusercontent.com/zlib-ng/zlib-ng/refs/heads/develop/arch/s390/self-hosted-builder/entrypoint
 fi
 
+# Copy rpms needed to workaround VX compiler bug, ref #1852
+mkdir clang
+cp /clang-19/*.rpm clang/
+
 # Stop service
-systemctl stop actions-runner
+systemctl stop actions-runner || true
 
-# Delete container
-podman container rm gaplib-actions-runner
+# Delete old container
+podman container rm gaplib-actions-runner || true
 
-# Delete image
-podman image rm localhost/zlib-ng/actions-runner
+# Delete old image
+podman image rm localhost/zlib-ng/actions-runner || true
 
-# Build image
-podman build --squash -f $DOCKERFILE --tag zlib-ng/actions-runner .
+# Build new image
+podman build --squash -f actions-runner.Dockerfile --tag zlib-ng/actions-runner . 2>&1 | tee /var/log/actions-runner-build.log
 
-# Create container
-podman create --replace --name=gaplib-actions-runner --env-file=/etc/actions-runner --init --volume=actions-runner-temp:/home/actions-runner zlib-ng/actions-runner
+# Create new container
+podman create --replace --name=gaplib-actions-runner --env-file=/etc/actions-runner --init \
+       --volume=actions-runner-temp:/home/actions-runner zlib-ng/actions-runner 2>&1 | tee -a /var/log/actions-runner-build.log
 
 # Start service
-systemctl start actions-runner
+systemctl start actions-runner || true
+
+# Cleanup
+podman image prune -af || true
 
 # Clean up tempfile
-if [ ! -t 0 ] ; then
-    rm $DOCKERFILE
-    echo "Deleted dockerfile $DOCKERFILE"
+if [ "$MODE" == "2" ] ; then
+    cd $TMPDIR
+    rm actions-runner.Dockerfile
+    rm actions-runner
+    rm entrypoint
+    rm -rf clang
+    cd ..
+    rmdir $TMPDIR
+    echo "Deleted tempfiles."
 fi
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/self-hosted-builder/actions-runner.Dockerfile b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/self-hosted-builder/actions-runner.Dockerfile
index 0e55ef67c47..f43ab85f03d 100644
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/self-hosted-builder/actions-runner.Dockerfile
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/s390/self-hosted-builder/actions-runner.Dockerfile
@@ -32,14 +32,23 @@ RUN     tar -xf /tmp/runner/_package/*.tar.gz -C /home/actions-runner && \
 
 #VOLUME  /home/actions-runner
 
+# Workaround: Install custom clang version to avoid compiler bug, ref #1852
+RUN     mkdir /tmp/clang
+
+COPY    clang/*.rpm /tmp/clang
+
+RUN     dnf -y upgrade /tmp/clang/*.rpm && \
+        rm -rf /tmp/clang
+
+# Cleanup
 RUN     rm -rf /tmp/runner /var/cache/dnf/* /tmp/runner.patch /tmp/global.json && \
         dnf clean all
 
 USER    actions-runner
 
 # Scripts.
-COPY    entrypoint /usr/bin/
-COPY    actions-runner /usr/bin/
+COPY    --chmod=555 entrypoint /usr/bin/
+COPY    --chmod=555 actions-runner /usr/bin/
 WORKDIR /home/actions-runner
 ENTRYPOINT ["/usr/bin/entrypoint"]
 CMD     ["/usr/bin/actions-runner"]
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/x86/chunkset_avx2.c b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/x86/chunkset_avx2.c
index b9051bb90e4..c7f336fde7b 100644
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/x86/chunkset_avx2.c
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/x86/chunkset_avx2.c
@@ -32,7 +32,13 @@ static inline void chunkmemset_8(uint8_t *from, chunk_t *chunk) {
 }
 
 static inline void chunkmemset_16(uint8_t *from, chunk_t *chunk) {
+    /* See explanation in chunkset_avx512.c */
+#if defined(_MSC_VER) && _MSC_VER <= 1900
+    halfchunk_t half = _mm_loadu_si128((__m128i*)from);
+    *chunk = _mm256_inserti128_si256(_mm256_castsi128_si256(half), half, 1);
+#else
     *chunk = _mm256_broadcastsi128_si256(_mm_loadu_si128((__m128i*)from));
+#endif
 }
 
 static inline void loadchunk(uint8_t const *s, chunk_t *chunk) {
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/x86/chunkset_avx512.c b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/x86/chunkset_avx512.c
index 929d04cdd9a..9d28d33d5ec 100644
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/x86/chunkset_avx512.c
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/arch/x86/chunkset_avx512.c
@@ -46,7 +46,17 @@ static inline void chunkmemset_8(uint8_t *from, chunk_t *chunk) {
 }
 
 static inline void chunkmemset_16(uint8_t *from, chunk_t *chunk) {
+    /* Unfortunately there seems to be a compiler bug in Visual Studio 2015 where
+     * the load is dumped to the stack with an aligned move for this memory-register
+     * broadcast. The vbroadcasti128 instruction is 2 fewer cycles and this dump to
+     * stack doesn't exist if compiled with optimizations. For the sake of working
+     * properly in a debugger, let's take the 2 cycle penalty */
+#if defined(_MSC_VER) && _MSC_VER <= 1900
+    halfchunk_t half = _mm_loadu_si128((__m128i*)from);
+    *chunk = _mm256_inserti128_si256(_mm256_castsi128_si256(half), half, 1);
+#else
     *chunk = _mm256_broadcastsi128_si256(_mm_loadu_si128((__m128i*)from));
+#endif
 }
 
 static inline void loadchunk(uint8_t const *s, chunk_t *chunk) {
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/infback.c b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/infback.c
index 0f5b51f78bc..b6d98d4a3fa 100644
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/infback.c
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/infback.c
@@ -102,7 +102,7 @@ int32_t Z_EXPORT PREFIX(inflateBackInit_)(PREFIX3(stream) *strm, int32_t windowB
     do { \
         PULL(); \
         have--; \
-        hold += ((unsigned)(*next++) << bits); \
+        hold += ((uint64_t)(*next++) << bits); \
         bits += 8; \
     } while (0)
 
@@ -154,7 +154,7 @@ int32_t Z_EXPORT PREFIX(inflateBack)(PREFIX3(stream) *strm, in_func in, void *in
     z_const unsigned char *next; /* next input */
     unsigned char *put;          /* next output */
     unsigned have, left;         /* available input and output */
-    uint32_t hold;               /* bit buffer */
+    uint64_t hold;               /* bit buffer */
     unsigned bits;               /* bits in bit buffer */
     unsigned copy;               /* number of stored or match bytes to copy */
     unsigned char *from;         /* where to copy match bytes from */
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/inflate.c b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/inflate.c
index d2ffdcb3c30..8c373da69d4 100644
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/inflate.c
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/inflate.c
@@ -291,7 +291,7 @@ int32_t Z_EXPORT PREFIX(inflatePrime)(PREFIX3(stream) *strm, int32_t bits, int32
     if (bits > 16 || state->bits + (unsigned int)bits > 32)
         return Z_STREAM_ERROR;
     value &= (1L << bits) - 1;
-    state->hold += (unsigned)value << state->bits;
+    state->hold += (uint64_t)value << state->bits;
     state->bits += (unsigned int)bits;
     return Z_OK;
 }
@@ -387,7 +387,7 @@ static void updatewindow(PREFIX3(stream) *strm, const uint8_t *end, uint32_t len
     do { \
         if (have == 0) goto inf_leave; \
         have--; \
-        hold += ((unsigned)(*next++) << bits); \
+        hold += ((uint64_t)(*next++) << bits); \
         bits += 8; \
     } while (0)
 
@@ -479,7 +479,7 @@ int32_t Z_EXPORT PREFIX(inflate)(PREFIX3(stream) *strm, int32_t flush) {
     unsigned char *put;         /* next output */
     unsigned char *from;        /* where to copy match bytes from */
     unsigned have, left;        /* available input and output */
-    uint32_t hold;              /* bit buffer */
+    uint64_t hold;              /* bit buffer */
     unsigned bits;              /* bits in bit buffer */
     uint32_t in, out;           /* save starting available input and output */
     unsigned copy;              /* number of stored or match bytes to copy */
@@ -577,7 +577,7 @@ int32_t Z_EXPORT PREFIX(inflate)(PREFIX3(stream) *strm, int32_t flush) {
         case TIME:
             NEEDBITS(32);
             if (state->head != NULL)
-                state->head->time = hold;
+                state->head->time = (unsigned)(hold);
             if ((state->flags & 0x0200) && (state->wrap & 4))
                 CRC4(state->check, hold);
             INITBITS();
@@ -704,7 +704,7 @@ int32_t Z_EXPORT PREFIX(inflate)(PREFIX3(stream) *strm, int32_t flush) {
 #endif
         case DICTID:
             NEEDBITS(32);
-            strm->adler = state->check = ZSWAP32(hold);
+            strm->adler = state->check = ZSWAP32((unsigned)hold);
             INITBITS();
             state->mode = DICT;
             Z_FALLTHROUGH;
@@ -1128,7 +1128,7 @@ int32_t Z_EXPORT PREFIX(inflate)(PREFIX3(stream) *strm, int32_t flush) {
 #ifdef GUNZIP
                      state->flags ? hold :
 #endif
-                     ZSWAP32(hold)) != state->check) {
+                     ZSWAP32((unsigned)hold)) != state->check) {
                     SET_BAD("incorrect data check");
                     break;
                 }
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/inflate.h b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/inflate.h
index f3bede2e414..9d5c482707e 100644
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/inflate.h
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/inflate.h
@@ -121,7 +121,7 @@ struct ALIGNED_(64) inflate_state {
     uint32_t chunksize;         /* size of memory copying chunk */
 
         /* bit accumulator */
-    uint32_t hold;              /* input bit accumulator */
+    uint64_t hold;              /* input bit accumulator */
     unsigned bits;              /* number of bits in "in" */
         /* fixed and dynamic code tables */
     unsigned lenbits;           /* index bits for lencode */
@@ -141,7 +141,7 @@ struct ALIGNED_(64) inflate_state {
     code *next;                 /* next available space in codes[] */
 
 #if defined(_M_IX86) || defined(_M_ARM)
-    uint32_t padding[2];
+    uint32_t padding[1];
 #endif
     struct crc32_fold_s ALIGNED_(16) crc_fold;
 
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/trees_emit.h b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/trees_emit.h
index 922daae509f..b5295ee4836 100644
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/trees_emit.h
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/trees_emit.h
@@ -38,6 +38,10 @@ extern Z_INTERNAL const int base_dist[D_CODES];
 /* If not enough room in bi_buf, use (valid) bits from bi_buf and
  * (64 - bi_valid) bits from value, leaving (width - (64-bi_valid))
  * unused bits in value.
+ *
+ * NOTE: Static analyzers can't evaluate value of total_bits, so we
+ *       also need to make sure bi_valid is within acceptable range,
+ *       otherwise the shifts will overflow.
  */
 #define send_bits(s, t_val, t_len, bi_buf, bi_valid) {\
     uint64_t val = (uint64_t)t_val;\
@@ -45,10 +49,10 @@ extern Z_INTERNAL const int base_dist[D_CODES];
     uint32_t total_bits = bi_valid + len;\
     send_bits_trace(s, val, len);\
     sent_bits_add(s, len);\
-    if (total_bits < BIT_BUF_SIZE) {\
+    if (total_bits < BIT_BUF_SIZE && bi_valid < BIT_BUF_SIZE) {\
         bi_buf |= val << bi_valid;\
         bi_valid = total_bits;\
-    } else if (bi_valid == BIT_BUF_SIZE) {\
+    } else if (bi_valid >= BIT_BUF_SIZE) {\
         put_uint64(s, bi_buf);\
         bi_buf = val;\
         bi_valid = len;\
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/zlib.h.in b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/zlib.h.in
index d84666e55eb..b8fa106ef16 100644
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/zlib.h.in
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/zlib.h.in
@@ -49,11 +49,11 @@
 extern "C" {
 #endif
 
-#define ZLIBNG_VERSION "2.2.3"
-#define ZLIBNG_VERNUM 0x020203F0L   /* MMNNRRSM: major minor revision status modified */
+#define ZLIBNG_VERSION "2.2.4"
+#define ZLIBNG_VERNUM 0x020204F0L   /* MMNNRRSM: major minor revision status modified */
 #define ZLIBNG_VER_MAJOR 2
 #define ZLIBNG_VER_MINOR 2
-#define ZLIBNG_VER_REVISION 3
+#define ZLIBNG_VER_REVISION 4
 #define ZLIBNG_VER_STATUS F         /* 0=devel, 1-E=beta, F=Release (DEPRECATED) */
 #define ZLIBNG_VER_STATUSH 0xF      /* Hex values: 0=devel, 1-E=beta, F=Release */
 #define ZLIBNG_VER_MODIFIED 0       /* non-zero if modified externally from zlib-ng */
diff --git a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/zutil.c b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/zutil.c
index 9095940a3ca..99818c3a7b9 100644
--- a/Modules/ThirdParty/ZLIB/src/itkzlib-ng/zutil.c
+++ b/Modules/ThirdParty/ZLIB/src/itkzlib-ng/zutil.c
@@ -21,7 +21,7 @@ z_const char * const PREFIX(z_errmsg)[10] = {
 };
 
 const char PREFIX3(vstring)[] =
-    " zlib-ng 2.2.3";
+    " zlib-ng 2.2.4";
 
 #ifdef ZLIB_COMPAT
 const char * Z_EXPORT zlibVersion(void) {