diff --git a/.github/workflows/catalyst.yml b/.github/workflows/catalyst.yml
index fb27d6a..69d590b 100644
--- a/.github/workflows/catalyst.yml
+++ b/.github/workflows/catalyst.yml
@@ -21,8 +21,8 @@ jobs:
     - name: Build
       run: ./.github/build.sh
   build_with_13_4_MAC_CATALYST_ARM64:
-    name: "Xcode version 13.4, Target macOS Catalyst on Apple Silicon [arm64] Target SDK 13.1"
-    runs-on: macos-12
+    name: "Xcode version 15.0, Target macOS Catalyst on Apple Silicon [arm64] Target SDK 13.1"
+    runs-on: macos-13
     env:
       PLATFORM: MAC_CATALYST_ARM64
       DEPLOYMENT_TARGET: "13.1"
@@ -30,6 +30,6 @@ jobs:
     - uses: actions/checkout@v2
     - uses: maxim-lobanov/setup-xcode@v1
       with:
-        xcode-version: '13.4'
+        xcode-version: '15.0'
     - name: Build
       run: ./.github/build.sh
\ No newline at end of file
diff --git a/.github/workflows/combined.yml b/.github/workflows/combined.yml
index e3703d2..898a631 100644
--- a/.github/workflows/combined.yml
+++ b/.github/workflows/combined.yml
@@ -7,63 +7,63 @@ on:
     types: [ opened, synchronize ]
 
 jobs:  
-  build_with_12_5_1_OS64COMBINED:
-    name: "Xcode version 13.1, Target iOS Combined [x86_64, arm64] Target SDK 12.0"
-    runs-on: macos-11
+  build_with_15_0_OS64COMBINED:
+    name: "Xcode version 15.0, Target iOS Combined [x86_64, arm64] Target SDK 15.0"
+    runs-on: macos-13
     env:
       PLATFORM: OS64COMBINED
       USE_NEW_BUILD: 1
-      DEPLOYMENT_TARGET: "12.0"
+      DEPLOYMENT_TARGET: "15.0"
       USE_XCODE: 1
     steps:
     - uses: actions/checkout@v2
     - uses: maxim-lobanov/setup-xcode@v1
       with:
-        xcode-version: '13.1'
+        xcode-version: '15.0'
     - name: Build
       run: ./.github/build.sh
-  build_with_12_5_1_WATCHOSCOMBINED:
-    name: "Xcode version 13.1, Target watchOS Combined [armv7k, arm64_32, x86_64] Target SDK 5.0"
-    runs-on: macos-11
+  build_with_15_0_WATCHOSCOMBINED:
+    name: "Xcode version 15.0, Target watchOS Combined [armv7k, arm64_32, x86_64] Target SDK 7.0"
+    runs-on: macos-13
     env:
       PLATFORM: WATCHOSCOMBINED
       USE_NEW_BUILD: 1
-      DEPLOYMENT_TARGET: "5.0"
+      DEPLOYMENT_TARGET: "7.0"
       USE_XCODE: 1
     steps:
     - uses: actions/checkout@v2
     - uses: maxim-lobanov/setup-xcode@v1
       with:
-        xcode-version: '13.1'
+        xcode-version: '15.0'
     - name: Build
       run: ./.github/build.sh
-  build_with_12_5_1_TVOSCOMBINED:
-    name: "Xcode version 13.1, Target tvOS Combined [arm64, x86_64] Target SDK 11.0"
-    runs-on: macos-11
+  build_with_15_0_TVOSCOMBINED:
+    name: "Xcode version 15.0, Target tvOS Combined [arm64, x86_64] Target SDK 14.0"
+    runs-on: macos-13
     env:
       PLATFORM: TVOSCOMBINED
       USE_NEW_BUILD: 1
-      DEPLOYMENT_TARGET: "11.0"
+      DEPLOYMENT_TARGET: "14.0"
       USE_XCODE: 1
     steps:
     - uses: actions/checkout@v2
     - uses: maxim-lobanov/setup-xcode@v1
       with:
-        xcode-version: '13.1'
+        xcode-version: '15.0'
     - name: Build
       run: ./.github/build.sh
-  build_with_13_1_OS64_LIBCURL:
-    name: "Xcode version 13.1, Target iOS [arm64, x86_64] Target SDK 14.0 [libCURL example]"
-    runs-on: macos-11
+  build_with_15_0_OS64_LIBCURL:
+    name: "Xcode version 15.0, Target iOS [arm64, x86_64] Target SDK 17.0 [libCURL example]"
+    runs-on: macos-13
     env:
       PLATFORM: OS64COMBINED
-      DEPLOYMENT_TARGET: "14.0"
+      DEPLOYMENT_TARGET: "17.0"
       USE_XCODE: 1
       BUILD_CURL: 1
     steps:
     - uses: actions/checkout@v2
     - uses: maxim-lobanov/setup-xcode@v1
       with:
-        xcode-version: '13.1'
+        xcode-version: '15.0'
     - name: Build
       run: ./.github/build.sh
\ No newline at end of file
diff --git a/.github/workflows/ios.yml b/.github/workflows/ios.yml
index 2852825..16c20eb 100644
--- a/.github/workflows/ios.yml
+++ b/.github/workflows/ios.yml
@@ -7,25 +7,25 @@ on:
     types: [ opened, synchronize ]
 
 jobs:
-  build_with_11_7_0_OS:
-    name: "Xcode version 11.7.0, Target iOS [arm64] Target SDK 9.0"
-    runs-on: macos-11
+  build_with_15_0_OS:
+    name: "Xcode version 11.7.0, Target iOS [arm64] Target SDK 14.0"
+    runs-on: macos-13
     env:
       PLATFORM: OS64
-      DEPLOYMENT_TARGET: 9.0
+      DEPLOYMENT_TARGET: 14.0
     steps:
     - uses: actions/checkout@v2
     - uses: maxim-lobanov/setup-xcode@v1
       with:
-        xcode-version: '11.7.0'
+        xcode-version: '15.0'
     - name: Build
       run: ./.github/build.sh
-  build_with_11_7_0_SIMULATOR64:
-    name: "Xcode version 11.7.0, Target iOS Simulator [x86_64] Target SDK 11.0"
-    runs-on: macos-11
+  build_with_15_0_SIMULATOR64:
+    name: "Xcode version 15.0, Target iOS Simulator [x86_64] Target SDK 14.0"
+    runs-on: macos-13
     env:
       PLATFORM: SIMULATOR64
-      DEPLOYMENT_TARGET: 11.0
+      DEPLOYMENT_TARGET: 14.0
     steps:
     - uses: actions/checkout@v2
     - uses: maxim-lobanov/setup-xcode@v1
@@ -33,17 +33,17 @@ jobs:
         xcode-version: '11.7.0'
     - name: Build
       run: ./.github/build.sh    
-  build_with_11_7_0_SIMULATORARM64:
-    name: "Xcode version 12.5.1, Target iOS Simulator [arm64] Target SDK 11.0"
-    runs-on: macos-11
+  build_with_15_0_SIMULATORARM64:
+    name: "Xcode version 15.0, Target iOS Simulator [arm64] Target SDK 16.0"
+    runs-on: macos-13
     env:
       PLATFORM: SIMULATORARM64
-      DEPLOYMENT_TARGET: 11.0
+      DEPLOYMENT_TARGET: 16.0
     steps:
     - uses: actions/checkout@v2
     - uses: maxim-lobanov/setup-xcode@v1
       with:
-        xcode-version: '12.5.1'
+        xcode-version: '15.0'
     - name: Build
       run: ./.github/build.sh    
   build_with_11_7_0_OS64:
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 74b3aed..153b361 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -7,9 +7,9 @@ on:
     types: [ opened, synchronize ]
 
 jobs:
-  build_with_12_5_1_MAC:
-    name: "Xcode version 12.5.1, Target macOS [x86_64] Target SDK 10.13"
-    runs-on: macos-11
+  build_with_15_0_MAC:
+    name: "Xcode version 15.0, Target macOS [x86_64] Target SDK 10.13"
+    runs-on: macos-13
     env:
       PLATFORM: MAC
       DEPLOYMENT_TARGET: "10.13"
@@ -17,20 +17,17 @@ jobs:
     - uses: actions/checkout@v2
     - uses: maxim-lobanov/setup-xcode@v1
       with:
-        xcode-version: '12.5.1'
+        xcode-version: '15.0'
     - name: Build
       run: ./.github/build.sh
-  build_with_13_2_MAC:
-    name: "Xcode version 13.2, Target macOS [arm64] Target SDK 11.0 [shared example]"
-    runs-on: macos-12
+  build_with_latest_MAC:
+    name: "Xcode version [latest supported], Target macOS [arm64] Target SDK 11.0 [shared example]"
+    runs-on: macos-latest
     env:
       PLATFORM: MAC_ARM64
       DEPLOYMENT_TARGET: "11.0"
       BUILD_SHARED: 1
     steps:
     - uses: actions/checkout@v2
-    - uses: maxim-lobanov/setup-xcode@v1
-      with:
-        xcode-version: '13.2'
     - name: Build
       run: ./.github/build.sh
\ No newline at end of file
diff --git a/.github/workflows/tvos.yml b/.github/workflows/tvos.yml
index 8787ed1..f526c35 100644
--- a/.github/workflows/tvos.yml
+++ b/.github/workflows/tvos.yml
@@ -7,16 +7,16 @@ on:
     types: [ opened, synchronize ]
 
 jobs:
-  build_with_11_7_0_TVOS:
-    name: "Xcode version 11.7.0, Target tvOS [arm64] Target SDK 11.0"
-    runs-on: macos-11
+  build_with_15_0_TVOS:
+    name: "Xcode version 15.0, Target tvOS [arm64] Target SDK 14.0"
+    runs-on: macos-13
     env:
       PLATFORM: TVOS
-      DEPLOYMENT_TARGET: "11.0"
+      DEPLOYMENT_TARGET: "14.0"
     steps:
     - uses: actions/checkout@v2
     - uses: maxim-lobanov/setup-xcode@v1
       with:
-        xcode-version: '11.7.0'
+        xcode-version: '15.0'
     - name: Build
       run: ./.github/build.sh
\ No newline at end of file
diff --git a/.github/workflows/visionos.yml b/.github/workflows/visionos.yml
index 7cdc963..66b7415 100644
--- a/.github/workflows/visionos.yml
+++ b/.github/workflows/visionos.yml
@@ -9,7 +9,7 @@ on:
 jobs:
   build_with_15_OS:
     name: "Xcode version 15.0.0, Target visionOS [arm64] Target SDK 1.0"
-    runs-on: macos-latest
+    runs-on: macos-13
     env:
       PLATFORM: VISIONOS
       DEPLOYMENT_TARGET: 1.0
@@ -22,7 +22,7 @@ jobs:
       run: ./.github/build.sh
   build_with_15_SIMULATOR64:
     name: "Xcode version 15.0.0, Target visionOS Simulator [x86_64] Target SDK 1.0"
-    runs-on: macos-latest
+    runs-on: macos-13
     env:
       PLATFORM: SIMULATOR64_VISIONOS
       DEPLOYMENT_TARGET: 1.0
@@ -35,7 +35,7 @@ jobs:
       run: ./.github/build.sh    
   build_with_15_SIMULATOR_VISIONOS:
     name: "Xcode version 15.0.0, Target visionOS Simulator [arm64] Target SDK 1.0"
-    runs-on: macos-latest
+    runs-on: macos-13
     env:
       PLATFORM: SIMULATOR_VISIONOS
       DEPLOYMENT_TARGET: 1.0
diff --git a/.github/workflows/watchos.yml b/.github/workflows/watchos.yml
index c82f742..9c19009 100644
--- a/.github/workflows/watchos.yml
+++ b/.github/workflows/watchos.yml
@@ -7,17 +7,17 @@ on:
     types: [ opened, synchronize ]
 
 jobs:
-  build_with_11_7_0_WATCHOS:
-    name: "Xcode version 11.7.0, Target tvOS [armv7k, arm64_32] Target SDK 5.0"
-    runs-on: macos-11
+  build_with_15_0_WATCHOS:
+    name: "Xcode version 15.0, Target tvOS [armv7k, arm64_32] Target SDK 7.0"
+    runs-on: macos-13
     env:
       PLATFORM: WATCHOS
-      DEPLOYMENT_TARGET: "5.0"
+      DEPLOYMENT_TARGET: "7.0"
     steps:
     - uses: actions/checkout@v2
     - uses: maxim-lobanov/setup-xcode@v1
       with:
-        xcode-version: '11.7.0'
+        xcode-version: '15.0'
     - name: Build
       run: ./.github/build.sh
   build_with_12_5_1_SIMULATOR_WATCHOS:
diff --git a/ios.toolchain.cmake b/ios.toolchain.cmake
index 0758f40..3790141 100644
--- a/ios.toolchain.cmake
+++ b/ios.toolchain.cmake
@@ -88,7 +88,7 @@
 #    CMAKE_OSX_SYSROOT, but can also be manually specified (although this should
 #    not be required).
 #
-# DEPLOYMENT_TARGET: Minimum SDK version to target. Default 2.0 on watchOS and 9.0 on tvOS+iOS
+# DEPLOYMENT_TARGET: Minimum SDK version to target. Default 6.0 on watchOS, 13.0 on tvOS+iOS/iPadOS, 11.0 on macOS, 1.0 on visionOS
 #
 # NAMED_LANGUAGE_SUPPORT:
 #    ON (default) = Will require "enable_language(OBJC) and/or enable_language(OBJCXX)" for full OBJC|OBJCXX support
@@ -259,10 +259,10 @@ set(NAMED_LANGUAGE_SUPPORT_INT ${NAMED_LANGUAGE_SUPPORT} CACHE BOOL
 if(NOT DEFINED DEPLOYMENT_TARGET)
   if (PLATFORM MATCHES "WATCHOS")
     # Unless specified, SDK version 4.0 is used by default as minimum target version (watchOS).
-    set(DEPLOYMENT_TARGET "4.0")
+    set(DEPLOYMENT_TARGET "6.0")
   elseif(PLATFORM STREQUAL "MAC")
     # Unless specified, SDK version 10.13 (High Sierra) is used by default as the minimum target version (macos).
-    set(DEPLOYMENT_TARGET "10.13")
+    set(DEPLOYMENT_TARGET "11.0")
   elseif(PLATFORM STREQUAL "VISIONOS" OR PLATFORM STREQUAL "SIMULATOR_VISIONOS" OR PLATFORM STREQUAL "SIMULATOR64_VISIONOS")
     # Unless specified, SDK version 1.0 is used by default as minimum target version (visionOS).
     set(DEPLOYMENT_TARGET "1.0")
@@ -277,7 +277,7 @@ if(NOT DEFINED DEPLOYMENT_TARGET)
     set(DEPLOYMENT_TARGET "13.1")
   else()
     # Unless specified, SDK version 11.0 is used by default as the minimum target version (iOS, tvOS).
-    set(DEPLOYMENT_TARGET "11.0")
+    set(DEPLOYMENT_TARGET "13.0")
   endif()
   message(STATUS "[DEFAULTS] Using the default min-version since DEPLOYMENT_TARGET not provided!")
 elseif(DEFINED DEPLOYMENT_TARGET AND PLATFORM MATCHES "^MAC_CATALYST" AND ${DEPLOYMENT_TARGET} VERSION_LESS "13.1")