diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 8892db9674..130e5f9293 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -165,7 +165,7 @@ jobs:
 
 - job: OSX_OpenMP
   pool:
-     vmImage: 'macOS-14'
+     vmImage: 'macOS-15'
   steps:   
   - script: |
       brew update
@@ -175,7 +175,7 @@ jobs:
      
 - job: OSX_GCC_Nothreads
   pool:
-     vmImage: 'macOS-14'
+     vmImage: 'macOS-15'
   steps:   
   - script: |
       brew update
@@ -237,7 +237,7 @@ jobs:
       
 - job: OSX_dynarch_cmake
   pool:
-     vmImage: 'macOS-14'
+     vmImage: 'macOS-15'
   variables:
      LD_LIBRARY_PATH: /usr/local/opt/llvm/lib
      LIBRARY_PATH: /usr/local/opt/llvm/lib
@@ -286,7 +286,7 @@ jobs:
  
 - job: OSX_NDK_ARMV7
   pool:
-     vmImage: 'macOS-14'
+     vmImage: 'macOS-15'
   steps:   
   - script: | 
       brew update
@@ -296,19 +296,19 @@ jobs:
 
 - job: OSX_IOS_ARMV8
   pool:
-     vmImage: 'macOS-14'
+     vmImage: 'macOS-15'
   variables:
-     CC: /Applications/Xcode_16.2.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
-     CFLAGS: -O2 -Wno-macro-redefined -isysroot /Applications/Xcode_16.2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.2.sdk -arch arm64 -miphoneos-version-min=10.0
+     CC: /Applications/Xcode_16.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
+     CFLAGS: -O2 -Wno-macro-redefined -isysroot /Applications/Xcode_16.4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.5.sdk -arch arm64 -miphoneos-version-min=10.0
   steps:
   - script: |
-     ls /Applications/Xcode_16.2.app/Contents/Developer/Platforms/
-     ls /Applications/Xcode_16.2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs
+     ls /Applications/Xcode_16.4.app/Contents/Developer/Platforms/
+     ls /Applications/Xcode_16.4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs
      make TARGET=ARMV8 DYNAMIC_ARCH=1 NUM_THREADS=32 HOSTCC=clang NOFORTRAN=1
 
 - job: OSX_IOS_ARMV7
   pool:
-     vmImage: 'macOS-14'
+     vmImage: 'macOS-15'
   variables:
      CC: /Applications/Xcode_16.2.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
      CFLAGS: -O2 -mno-thumb -Wno-macro-redefined -isysroot /Applications/Xcode_16.2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.2.sdk -arch armv7 -miphoneos-version-min=5.1
@@ -318,15 +318,15 @@ jobs:
 
 - job: OSX_xbuild_DYNAMIC_ARM64
   pool:
-     vmImage: 'macOS-14'
+     vmImage: 'macOS-15'
   variables:
-     CC: /Applications/Xcode_16.2.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
-     CFLAGS: -O2 -Wno-macro-redefined -isysroot /Applications/Xcode_16.2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.2.sdk -arch arm64
+     CC: /Applications/Xcode_16.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
+     CFLAGS: -O2 -Wno-macro-redefined -isysroot /Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.5.sdk -arch arm64
   steps:
   - script: |
-     ls /Applications/Xcode_16.2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs
-     /Applications/Xcode_12.2.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch arm64 --print-supported-cpus
-     /Applications/Xcode_16.2.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang --version
+     ls /Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs
+     /Applications/Xcode_16.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch arm64 --print-supported-cpus
+     /Applications/Xcode_16.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang --version
      make TARGET=ARMV8 DYNAMIC_ARCH=1 NUM_THREADS=32 HOSTCC=clang NOFORTRAN=1
 
 - job: ALPINE_MUSL