diff --git a/utils/build-windows-toolchain.bat b/utils/build-windows-toolchain.bat
index c94c82b007b5a..87d147888087e 100644
--- a/utils/build-windows-toolchain.bat
+++ b/utils/build-windows-toolchain.bat
@@ -70,7 +70,6 @@ if "%TestArg:~-1%"=="," (set TestArg=%TestArg:~0,-1%) else (set TestArg= )
 set SkipPackagingArg=-SkipPackaging
 if not "%SKIP_PACKAGING%"=="1" set "SkipPackagingArg= "
 
-call :CloneDependencies || (exit /b)
 call :CloneRepositories || (exit /b)
 
 :: We only have write access to BuildRoot, so use that as the image root.
@@ -106,7 +105,6 @@ rem git -C "%SourceRoot%\swift" checkout-index --force --all
 
 set "args=%args% --skip-repository swift"
 set "args=%args% --skip-repository ninja"
-set "args=%args% --skip-repository icu"
 set "args=%args% --skip-repository swift-integration-tests"
 set "args=%args% --skip-repository swift-stress-tester"
 set "args=%args% --skip-repository swift-xcode-playground-support"
@@ -116,22 +114,4 @@ call "%SourceRoot%\swift\utils\update-checkout.cmd" %args% --clone --skip-histor
 goto :eof
 endlocal
 
-:CloneDependencies
-setlocal enableextensions enabledelayedexpansion
-
-:: Always enable symbolic links
-git config --global core.symlink true
-
-:: FIXME(compnerd) avoid the fresh clone
-rd /s /q zlib libxml2 sqlite icu curl
-
-git clone --quiet --no-tags --depth 1 --branch v1.2.11 https://github.com/madler/zlib
-git clone --quiet --no-tags --depth 1 --branch v2.9.12 https://github.com/gnome/libxml2
-git clone --quiet --no-tags --depth 1 --branch version-3.36.0 https://github.com/sqlite/sqlite
-git clone --quiet --no-tags --depth 1 --branch maint/maint-69 https://github.com/unicode-org/icu
-git clone --quiet --no-tags --depth 1 --branch curl-8_4_0 https://github.com/curl/curl
-
-goto :eof
-endlocal
-
 :end
diff --git a/utils/build.ps1 b/utils/build.ps1
index 39faf1b452c75..4d6e55e2a4d73 100644
--- a/utils/build.ps1
+++ b/utils/build.ps1
@@ -69,6 +69,10 @@ An array of names of projects to run tests for.
 .PARAMETER Stage
 The path to a directory where built msi's and the installer executable should be staged (for CI).
 
+.PARAMETER BuildTo
+The name of a build step after which the script should terminate.
+For example: -BuildTo ToolsSupportCore
+
 .PARAMETER ToBatch
 When set, runs the script in a special mode which outputs a listing of command invocations
 in batch file format instead of executing them.
@@ -98,6 +102,7 @@ param(
   [bool] $DefaultsLLD = $true,
   [string[]] $Test = @(),
   [string] $Stage = "",
+  [string] $BuildTo = "",
   [switch] $ToBatch
 )
 
@@ -234,6 +239,13 @@ $SDKArchs = @($SDKs | ForEach-Object {
 })
 
 # Build functions
+function Invoke-BuildStep([string]$Name) {
+  & $Name @Args
+  if ($Name.Replace("Build-", "") -eq $BuildTo) {
+    exit 0
+  }
+}
+
 function Get-ProjectBinaryCache($Arch, $ID) {
   return "$BinaryCache\" + ($Arch.BuildID + $ID)
 }
@@ -878,14 +890,14 @@ function Build-ZLib($Arch) {
 
   Build-CMakeProject `
     -Src $SourceCache\zlib `
-    -Bin "$($Arch.BinaryCache)\zlib-1.2.11" `
-    -InstallTo $LibraryRoot\zlib-1.2.11\usr `
+    -Bin "$($Arch.BinaryCache)\zlib-1.3" `
+    -InstallTo $LibraryRoot\zlib-1.3\usr `
     -Arch $Arch `
     -BuildTargets default `
     -Defines @{
       BUILD_SHARED_LIBS = "NO";
-      INSTALL_BIN_DIR = "$LibraryRoot\zlib-1.2.11\usr\bin\$ArchName";
-      INSTALL_LIB_DIR = "$LibraryRoot\zlib-1.2.11\usr\lib\$ArchName";
+      INSTALL_BIN_DIR = "$LibraryRoot\zlib-1.3\usr\bin\$ArchName";
+      INSTALL_LIB_DIR = "$LibraryRoot\zlib-1.3\usr\lib\$ArchName";
     }
 }
 
@@ -894,8 +906,8 @@ function Build-XML2($Arch) {
 
   Build-CMakeProject `
     -Src $SourceCache\libxml2 `
-    -Bin "$($Arch.BinaryCache)\libxml2-2.9.12" `
-    -InstallTo "$LibraryRoot\libxml2-2.9.12\usr" `
+    -Bin "$($Arch.BinaryCache)\libxml2-2.11.5" `
+    -InstallTo "$LibraryRoot\libxml2-2.11.5\usr" `
     -Arch $Arch `
     -BuildTargets default `
     -Defines @{
@@ -946,8 +958,8 @@ function Build-CURL($Arch) {
       CURL_ZLIB = "YES";
       ENABLE_UNIX_SOCKETS = "NO";
       ENABLE_THREADED_RESOLVER = "NO";
-      ZLIB_ROOT = "$LibraryRoot\zlib-1.2.11\usr";
-      ZLIB_LIBRARY = "$LibraryRoot\zlib-1.2.11\usr\lib\$ArchName\zlibstatic.lib";
+      ZLIB_ROOT = "$LibraryRoot\zlib-1.3\usr";
+      ZLIB_LIBRARY = "$LibraryRoot\zlib-1.3\usr\lib\$ArchName\zlibstatic.lib";
     }
 }
 
@@ -1076,11 +1088,11 @@ function Build-Foundation($Arch, [switch]$Test = $false) {
         ICU_I18N_LIBRARY_RELEASE = "$LibraryRoot\icu-69.1\usr\lib\$ShortArch\sicuin69.lib";
         ICU_ROOT = "$LibraryRoot\icu-69.1\usr";
         ICU_UC_LIBRARY_RELEASE = "$LibraryRoot\icu-69.1\usr\lib\$ShortArch\sicuuc69.lib";
-        LIBXML2_LIBRARY = "$LibraryRoot\libxml2-2.9.12\usr\lib\$ShortArch\libxml2s.lib";
-        LIBXML2_INCLUDE_DIR = "$LibraryRoot\libxml2-2.9.12\usr\include\libxml2";
+        LIBXML2_LIBRARY = "$LibraryRoot\libxml2-2.11.5\usr\lib\$ShortArch\libxml2s.lib";
+        LIBXML2_INCLUDE_DIR = "$LibraryRoot\libxml2-2.11.5\usr\include\libxml2";
         LIBXML2_DEFINITIONS = "/DLIBXML_STATIC";
-        ZLIB_LIBRARY = "$LibraryRoot\zlib-1.2.11\usr\lib\$ShortArch\zlibstatic.lib";
-        ZLIB_INCLUDE_DIR = "$LibraryRoot\zlib-1.2.11\usr\include";
+        ZLIB_LIBRARY = "$LibraryRoot\zlib-1.3\usr\lib\$ShortArch\zlibstatic.lib";
+        ZLIB_INCLUDE_DIR = "$LibraryRoot\zlib-1.3\usr\include";
         dispatch_DIR = "$DispatchBinaryCache\cmake\modules";
       } + $TestingDefines)
   }
@@ -1189,13 +1201,13 @@ function Install-Platform($Arch) {
 }
 
 function Build-SQLite($Arch) {
-  $SrcPath = "$SourceCache\sqlite-3.36.0"
+  $SrcPath = "$SourceCache\sqlite-3.43.2"
 
   # Download the sources
   if (-not (Test-Path $SrcPath)) {
-    $ZipPath = "$env:TEMP\sqlite-amalgamation-3360000.zip"
+    $ZipPath = "$env:TEMP\sqlite-amalgamation-3430200.zip"
     if (-not $ToBatch) { Remove-item $ZipPath -ErrorAction Ignore | Out-Null }
-    Invoke-Program curl.exe -- -sL https://sqlite.org/2021/sqlite-amalgamation-3360000.zip -o $ZipPath
+    Invoke-Program curl.exe -- -sL https://sqlite.org/2023/sqlite-amalgamation-3430200.zip -o $ZipPath
 
     if (-not $ToBatch) { New-Item -Type Directory -Path $SrcPath -ErrorAction Ignore | Out-Null }
     Invoke-Program "$UnixToolsBinDir\unzip.exe" -- -j -o $ZipPath -d $SrcPath
@@ -1225,8 +1237,8 @@ install(FILES sqlite3.h sqlite3ext.h DESTINATION include)
 
   Build-CMakeProject `
     -Src $SrcPath `
-    -Bin "$($Arch.BinaryCache)\sqlite-3.36.0" `
-    -InstallTo $LibraryRoot\sqlite-3.36.0\usr `
+    -Bin "$($Arch.BinaryCache)\sqlite-3.43.2" `
+    -InstallTo $LibraryRoot\sqlite-3.43.2\usr `
     -Arch $Arch `
     -BuildTargets default `
     -Defines @{
@@ -1297,8 +1309,8 @@ function Build-LLBuild($Arch, [switch]$Test = $false) {
         CMAKE_INSTALL_PREFIX = "$($Arch.ToolchainInstallRoot)\usr";
         BUILD_SHARED_LIBS = "YES";
         LLBUILD_SUPPORT_BINDINGS = "Swift";
-        SQLite3_INCLUDE_DIR = "$LibraryRoot\sqlite-3.36.0\usr\include";
-        SQLite3_LIBRARY = "$LibraryRoot\sqlite-3.36.0\usr\lib\SQLite3.lib";
+        SQLite3_INCLUDE_DIR = "$LibraryRoot\sqlite-3.43.2\usr\include";
+        SQLite3_LIBRARY = "$LibraryRoot\sqlite-3.43.2\usr\lib\SQLite3.lib";
       })
   }
 }
@@ -1348,8 +1360,8 @@ function Build-Driver($Arch) {
       LLBuild_DIR = "$BinaryCache\4\cmake\modules";
       Yams_DIR = "$BinaryCache\5\cmake\modules";
       ArgumentParser_DIR = "$BinaryCache\6\cmake\modules";
-      SQLite3_INCLUDE_DIR = "$LibraryRoot\sqlite-3.36.0\usr\include";
-      SQLite3_LIBRARY = "$LibraryRoot\sqlite-3.36.0\usr\lib\SQLite3.lib";
+      SQLite3_INCLUDE_DIR = "$LibraryRoot\sqlite-3.43.2\usr\include";
+      SQLite3_LIBRARY = "$LibraryRoot\sqlite-3.43.2\usr\lib\SQLite3.lib";
     }
 }
 
@@ -1435,8 +1447,8 @@ function Build-PackageManager($Arch) {
       SwiftCollections_DIR = "$BinaryCache\9\cmake\modules";
       SwiftASN1_DIR = "$BinaryCache\10\cmake\modules";
       SwiftCertificates_DIR = "$BinaryCache\11\cmake\modules";
-      SQLite3_INCLUDE_DIR = "$LibraryRoot\sqlite-3.36.0\usr\include";
-      SQLite3_LIBRARY = "$LibraryRoot\sqlite-3.36.0\usr\lib\SQLite3.lib";
+      SQLite3_INCLUDE_DIR = "$LibraryRoot\sqlite-3.43.2\usr\include";
+      SQLite3_LIBRARY = "$LibraryRoot\sqlite-3.43.2\usr\lib\SQLite3.lib";
     }
 }
 
@@ -1596,23 +1608,23 @@ if (-not $SkipBuild) {
 
 if (-not $SkipBuild) {
   Ensure-SwiftToolchain $HostArch
-  Build-BuildTools $HostArch
-  Build-Compilers $HostArch
+  Invoke-BuildStep Build-BuildTools $HostArch
+  Invoke-BuildStep Build-Compilers $HostArch
 }
 
 foreach ($Arch in $SDKArchs) {
   if (-not $SkipBuild) {
-    Build-ZLib $Arch
-    Build-XML2 $Arch
-    Build-CURL $Arch
-    Build-ICU $Arch
-    Build-LLVM $Arch
+    Invoke-BuildStep Build-ZLib $Arch
+    Invoke-BuildStep Build-XML2 $Arch
+    Invoke-BuildStep Build-CURL $Arch
+    Invoke-BuildStep Build-ICU $Arch
+    Invoke-BuildStep Build-LLVM $Arch
 
     # Build platform: SDK, Redist and XCTest
-    Build-Runtime $Arch
-    Build-Dispatch $Arch
-    Build-Foundation $Arch
-    Build-XCTest $Arch
+    Invoke-BuildStep Build-Runtime $Arch
+    Invoke-BuildStep Build-Dispatch $Arch
+    Invoke-BuildStep Build-Foundation $Arch
+    Invoke-BuildStep Build-XCTest $Arch
   }
 }
 
@@ -1629,33 +1641,33 @@ if (-not $ToBatch) {
 }
 
 if (-not $SkipBuild) {
-  Build-SQLite $HostArch
-  Build-System $HostArch
-  Build-ToolsSupportCore $HostArch
-  Build-LLBuild $HostArch
-  Build-Yams $HostArch
-  Build-ArgumentParser $HostArch
-  Build-Driver $HostArch
-  Build-Crypto $HostArch
-  Build-Collections $HostArch
-  Build-ASN1 $HostArch
-  Build-Certificates $HostArch
-  Build-PackageManager $HostArch
-  Build-IndexStoreDB $HostArch
-  Build-Syntax $HostArch
-  Build-SourceKitLSP $HostArch
+  Invoke-BuildStep Build-SQLite $HostArch
+  Invoke-BuildStep Build-System $HostArch
+  Invoke-BuildStep Build-ToolsSupportCore $HostArch
+  Invoke-BuildStep Build-LLBuild $HostArch
+  Invoke-BuildStep Build-Yams $HostArch
+  Invoke-BuildStep Build-ArgumentParser $HostArch
+  Invoke-BuildStep Build-Driver $HostArch
+  Invoke-BuildStep Build-Crypto $HostArch
+  Invoke-BuildStep Build-Collections $HostArch
+  Invoke-BuildStep Build-ASN1 $HostArch
+  Invoke-BuildStep Build-Certificates $HostArch
+  Invoke-BuildStep Build-PackageManager $HostArch
+  Invoke-BuildStep Build-IndexStoreDB $HostArch
+  Invoke-BuildStep Build-Syntax $HostArch
+  Invoke-BuildStep Build-SourceKitLSP $HostArch
 }
 
 Install-HostToolchain
 
 if (-not $SkipBuild) {
-  Build-Inspect $HostArch
-  Build-Format $HostArch
-  Build-DocC $HostArch
+  Invoke-BuildStep Build-Inspect $HostArch
+  Invoke-BuildStep Build-Format $HostArch
+  Invoke-BuildStep Build-DocC $HostArch
 }
 
 if (-not $SkipPackaging) {
-  Build-Installer
+  Invoke-BuildStep Build-Installer
 }
 
 if ($Test -contains "swift") { Build-Compilers $HostArch -Test }
diff --git a/utils/update_checkout/update-checkout-config.json b/utils/update_checkout/update-checkout-config.json
index d8ce3b1f499ff..1dc886a10e96f 100644
--- a/utils/update_checkout/update-checkout-config.json
+++ b/utils/update_checkout/update-checkout-config.json
@@ -46,10 +46,6 @@
             "remote": { "id": "apple/swift-xcode-playground-support" } },
         "ninja": {
             "remote": { "id": "ninja-build/ninja" } },
-        "icu": {
-            "remote": { "id": "unicode-org/icu" },
-            "platforms": [ "Linux" ]
-        },
         "yams": {
             "remote": { "id": "jpsim/Yams" }
         },
@@ -88,7 +84,19 @@
         "llvm-project": {
             "remote": { "id": "apple/llvm-project" } },
         "wasi-libc": {
-            "remote": { "id": "WebAssembly/wasi-libc" } }
+            "remote": { "id": "WebAssembly/wasi-libc" } },
+        "curl": {
+          "remote": { "id": "curl/curl" }
+        },
+        "icu": {
+          "remote": { "id": "unicode-org/icu" }
+        },
+        "libxml2": {
+          "remote": { "id": "gnome/libxml2" }
+        },
+        "zlib": {
+          "remote": { "id": "madler/zlib" }
+        }
     },
     "default-branch-scheme": "main",
     "branch-schemes": {
@@ -119,7 +127,6 @@
                 "swift-integration-tests": "main",
                 "swift-xcode-playground-support": "main",
                 "ninja": "release",
-                "icu": "release-65-1",
                 "yams": "5.0.1",
                 "cmake": "v3.24.2",
                 "indexstore-db": "main",
@@ -134,7 +141,11 @@
                 "swift-nio": "2.31.2",
                 "swift-nio-ssl": "2.15.0",
                 "swift-experimental-string-processing": "swift/main",
-                "wasi-libc": "wasi-sdk-20"
+                "wasi-libc": "wasi-sdk-20",
+                "curl": "curl-8_4_0",
+                "icu": "maint/maint-69",
+                "libxml2": "v2.11.5",
+                "zlib": "v1.3"
             }
         },
         "release/5.10": {
@@ -584,7 +595,6 @@
                 "swift-integration-tests": "main",
                 "swift-xcode-playground-support": "main",
                 "ninja": "release",
-                "icu": "release-65-1",
                 "yams": "5.0.1",
                 "cmake": "v3.24.2",
                 "indexstore-db": "main",
@@ -592,7 +602,11 @@
                 "swift-format": "main",
                 "swift-installer-scripts": "main",
                 "swift-experimental-string-processing": "swift/main",
-                "wasi-libc": "wasi-sdk-20"
+                "wasi-libc": "wasi-sdk-20",
+                "curl": "curl-8_4_0",
+                "icu": "maint/maint-69",
+                "libxml2": "v2.11.5",
+                "zlib": "v1.3"
             }
         },
         "release/5.4": {