diff --git a/Library/Homebrew/macos_version.rb b/Library/Homebrew/macos_version.rb
index 0d40d22735904..4dfc17c4bc747 100644
--- a/Library/Homebrew/macos_version.rb
+++ b/Library/Homebrew/macos_version.rb
@@ -21,6 +21,7 @@ def initialize(version)
   # NOTE: When removing symbols here, ensure that they are added
   #       to `DEPRECATED_MACOS_VERSIONS` in `MacOSRequirement`.
   SYMBOLS = {
+    sonoma:      "14",
     ventura:     "13",
     monterey:    "12",
     big_sur:     "11",
diff --git a/Library/Homebrew/os/mac.rb b/Library/Homebrew/os/mac.rb
index f49766082f7ed..84a1775947eb3 100644
--- a/Library/Homebrew/os/mac.rb
+++ b/Library/Homebrew/os/mac.rb
@@ -50,7 +50,9 @@ def self.latest_sdk_version
 
     sig { returns(String) }
     def self.preferred_perl_version
-      if version >= :big_sur
+      if version >= :sonoma
+        "5.34"
+      elsif version >= :big_sur
         "5.30"
       else
         "5.18"
diff --git a/Library/Homebrew/os/mac/pkgconfig/14/expat.pc b/Library/Homebrew/os/mac/pkgconfig/14/expat.pc
new file mode 100644
index 0000000000000..b2a17239f3025
--- /dev/null
+++ b/Library/Homebrew/os/mac/pkgconfig/14/expat.pc
@@ -0,0 +1,13 @@
+homebrew_sdkroot=/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk
+prefix=${homebrew_sdkroot}/usr
+exec_prefix=/usr
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+
+Name: expat
+Version: 2.5.0
+Description: expat XML parser
+URL: https://libexpat.github.io/
+Libs: -L${libdir} -lexpat
+Libs.private:
+Cflags:
diff --git a/Library/Homebrew/os/mac/pkgconfig/14/libcurl.pc b/Library/Homebrew/os/mac/pkgconfig/14/libcurl.pc
new file mode 100644
index 0000000000000..5196d76027bdd
--- /dev/null
+++ b/Library/Homebrew/os/mac/pkgconfig/14/libcurl.pc
@@ -0,0 +1,42 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+# SPDX-License-Identifier: curl
+#
+###########################################################################
+
+# This should most probably benefit from getting a "Requires:" field added
+# dynamically by configure.
+#
+homebrew_sdkroot=/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk
+prefix=${homebrew_sdkroot}/usr
+exec_prefix=/usr
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+supported_protocols="DICT FILE FTP FTPS GOPHER GOPHERS HTTP HTTPS IMAP IMAPS LDAP LDAPS MQTT POP3 POP3S RTSP SMB SMBS SMTP SMTPS TELNET TFTP"
+supported_features="alt-svc AsynchDNS GSS-API HSTS HTTP2 HTTPS-proxy IPv6 Kerberos Largefile libz MultiSSL NTLM NTLM_WB SPNEGO SSL UnixSockets"
+
+Name: libcurl
+URL: https://curl.se/
+Description: Library to transfer files with ftp, http, etc.
+Version: 8.0.1
+Libs: -L${libdir} -lcurl
+Libs.private: -lldap -lz
+Cflags:
diff --git a/Library/Homebrew/os/mac/pkgconfig/14/libedit.pc b/Library/Homebrew/os/mac/pkgconfig/14/libedit.pc
new file mode 100644
index 0000000000000..102ea434d03fa
--- /dev/null
+++ b/Library/Homebrew/os/mac/pkgconfig/14/libedit.pc
@@ -0,0 +1,12 @@
+homebrew_sdkroot=/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk
+prefix=${homebrew_sdkroot}/usr
+exec_prefix=/usr
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+
+Name: libedit
+Description: command line editor library provides generic line editing, history, and tokenization functions.
+Version: 3.0
+Requires:
+Libs: -L${libdir} -ledit
+Cflags: -I${includedir}/editline
diff --git a/Library/Homebrew/os/mac/pkgconfig/14/libexslt.pc b/Library/Homebrew/os/mac/pkgconfig/14/libexslt.pc
new file mode 100644
index 0000000000000..d977f7c424141
--- /dev/null
+++ b/Library/Homebrew/os/mac/pkgconfig/14/libexslt.pc
@@ -0,0 +1,14 @@
+homebrew_sdkroot=/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk
+prefix=${homebrew_sdkroot}/usr
+exec_prefix=/usr
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+
+
+Name: libexslt
+Version: 0.8.20
+Description: EXSLT Extension library
+Requires: libxml-2.0, libxslt
+Cflags:
+Libs: -L${libdir} -lexslt
+Libs.private:
diff --git a/Library/Homebrew/os/mac/pkgconfig/14/libffi.pc b/Library/Homebrew/os/mac/pkgconfig/14/libffi.pc
new file mode 100644
index 0000000000000..77ffd38c0e599
--- /dev/null
+++ b/Library/Homebrew/os/mac/pkgconfig/14/libffi.pc
@@ -0,0 +1,12 @@
+homebrew_sdkroot=/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk
+prefix=${homebrew_sdkroot}/usr
+exec_prefix=/usr
+libdir=${exec_prefix}/lib
+toolexeclibdir=${libdir}
+includedir=${prefix}/include/ffi
+
+Name: libffi
+Description: Library supporting Foreign Function Interfaces
+Version: 3.4-rc1
+Libs: -L${toolexeclibdir} -lffi
+Cflags: -I${includedir}
diff --git a/Library/Homebrew/os/mac/pkgconfig/14/libxml-2.0.pc b/Library/Homebrew/os/mac/pkgconfig/14/libxml-2.0.pc
new file mode 100644
index 0000000000000..9af71c4f4e808
--- /dev/null
+++ b/Library/Homebrew/os/mac/pkgconfig/14/libxml-2.0.pc
@@ -0,0 +1,14 @@
+homebrew_sdkroot=/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk
+prefix=${homebrew_sdkroot}/usr
+exec_prefix=/usr
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+modules=1
+
+Name: libXML
+Version: 2.9.13
+Description: libXML library version2.
+Requires:
+Libs: -L${libdir} -lxml2
+Libs.private: -lz -lpthread -licucore -lm
+Cflags:
diff --git a/Library/Homebrew/os/mac/pkgconfig/14/libxslt.pc b/Library/Homebrew/os/mac/pkgconfig/14/libxslt.pc
new file mode 100644
index 0000000000000..75f3d2724037d
--- /dev/null
+++ b/Library/Homebrew/os/mac/pkgconfig/14/libxslt.pc
@@ -0,0 +1,14 @@
+homebrew_sdkroot=/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk
+prefix=${homebrew_sdkroot}/usr
+exec_prefix=/usr
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+
+
+Name: libxslt
+Version: 1.1.35
+Description: XSLT library version 2.
+Requires: libxml-2.0
+Cflags:
+Libs: -L${libdir} -lxslt
+Libs.private:
diff --git a/Library/Homebrew/os/mac/pkgconfig/14/ncurses.pc b/Library/Homebrew/os/mac/pkgconfig/14/ncurses.pc
new file mode 100644
index 0000000000000..962a6f165329b
--- /dev/null
+++ b/Library/Homebrew/os/mac/pkgconfig/14/ncurses.pc
@@ -0,0 +1,17 @@
+homebrew_sdkroot=/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk
+prefix=${homebrew_sdkroot}/usr
+exec_prefix=/usr
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+abi_version=5.4
+major_version=6
+version=6.0.20150808
+
+Name: ncurses
+Description: ncurses 6.0 library
+Version: ${version}
+URL: http://invisible-island.net/ncurses
+Requires.private:
+Libs: -L${libdir} -lncurses
+Libs.private:
+Cflags: -D_DARWIN_C_SOURCE
diff --git a/Library/Homebrew/os/mac/pkgconfig/14/ncursesw.pc b/Library/Homebrew/os/mac/pkgconfig/14/ncursesw.pc
new file mode 100644
index 0000000000000..1322afb2054a8
--- /dev/null
+++ b/Library/Homebrew/os/mac/pkgconfig/14/ncursesw.pc
@@ -0,0 +1,17 @@
+homebrew_sdkroot=/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk
+prefix=${homebrew_sdkroot}/usr
+exec_prefix=/usr
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+abi_version=5.4
+major_version=6
+version=6.0.20150808
+
+Name: ncursesw
+Description: ncurses 6.0 library
+Version: ${version}
+URL: http://invisible-island.net/ncurses
+Requires.private:
+Libs: -L${libdir} -lncurses
+Libs.private:
+Cflags: -D_DARWIN_C_SOURCE
diff --git a/Library/Homebrew/os/mac/pkgconfig/14/sqlite3.pc b/Library/Homebrew/os/mac/pkgconfig/14/sqlite3.pc
new file mode 100644
index 0000000000000..a7dc2242b4d0c
--- /dev/null
+++ b/Library/Homebrew/os/mac/pkgconfig/14/sqlite3.pc
@@ -0,0 +1,12 @@
+homebrew_sdkroot=/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk
+prefix=${homebrew_sdkroot}/usr
+exec_prefix=/usr
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+
+Name: SQLite
+Description: SQL database engine
+Version: 3.39.5
+Libs: -L${libdir} -lsqlite3
+Libs.private:
+Cflags:
diff --git a/Library/Homebrew/os/mac/pkgconfig/14/uuid.pc b/Library/Homebrew/os/mac/pkgconfig/14/uuid.pc
new file mode 100644
index 0000000000000..cd698830c19ab
--- /dev/null
+++ b/Library/Homebrew/os/mac/pkgconfig/14/uuid.pc
@@ -0,0 +1,14 @@
+homebrew_sdkroot=/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk
+prefix=${homebrew_sdkroot}/usr
+exec_prefix=/usr
+libdir=${exec_prefix}/lib
+sharedlibdir=${libdir}
+includedir=${prefix}/include/uuid
+
+Name: uuid
+Description: Universally unique id library
+Version: 1.0
+
+Requires:
+Libs:
+Cflags: -I${includedir}
diff --git a/Library/Homebrew/os/mac/pkgconfig/14/zlib.pc b/Library/Homebrew/os/mac/pkgconfig/14/zlib.pc
new file mode 100644
index 0000000000000..1930766436424
--- /dev/null
+++ b/Library/Homebrew/os/mac/pkgconfig/14/zlib.pc
@@ -0,0 +1,14 @@
+homebrew_sdkroot=/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk
+prefix=${homebrew_sdkroot}/usr
+exec_prefix=/usr
+libdir=${exec_prefix}/lib
+sharedlibdir=${libdir}
+includedir=${prefix}/include
+
+Name: zlib
+Description: zlib compression library
+Version: 1.2.12
+
+Requires:
+Libs: -L${libdir} -L${sharedlibdir} -lz
+Cflags:
diff --git a/Library/Homebrew/os/mac/xcode.rb b/Library/Homebrew/os/mac/xcode.rb
index e1b28f87d8841..3a575f491d344 100755
--- a/Library/Homebrew/os/mac/xcode.rb
+++ b/Library/Homebrew/os/mac/xcode.rb
@@ -19,6 +19,7 @@ module Xcode
       def self.latest_version(macos: MacOS.version)
         latest_stable = "14.3"
         case macos
+        when "14" then "15.0"
         when "13" then latest_stable
         when "12" then "14.2"
         when "11" then "13.2.1"
@@ -42,6 +43,7 @@ def self.latest_version(macos: MacOS.version)
       sig { returns(String) }
       def self.minimum_version
         case MacOS.version
+        when "14" then "15.0"
         when "13" then "14.1"
         when "12" then "13.1"
         when "11" then "12.2"
@@ -243,6 +245,7 @@ def self.detect_version_from_clang_version
         when "13.0.0" then "13.2.1"
         when "13.1.6" then "13.4.1"
         when "14.0.0" then "14.2"
+        when "15.0.0" then "15.0"
         else               "14.3"
         end
       end
@@ -337,6 +340,7 @@ def self.update_instructions
       sig { returns(String) }
       def self.latest_clang_version
         case MacOS.version
+        when "14"    then "1500.0.28.1.1"
         when "13"    then "1403.0.22.14.1"
         when "12"    then "1400.0.29.202"
         when "11"    then "1300.0.29.30"
@@ -354,6 +358,7 @@ def self.latest_clang_version
       sig { returns(String) }
       def self.minimum_version
         case MacOS.version
+        when "14" then "15.0.0"
         when "13" then "14.0.0"
         when "12" then "13.0.0"
         when "11" then "12.5.0"
diff --git a/Library/Homebrew/test/support/fixtures/bottles/testball_bottle-0.1.arm64_sonoma.bottle.tar.gz b/Library/Homebrew/test/support/fixtures/bottles/testball_bottle-0.1.arm64_sonoma.bottle.tar.gz
new file mode 120000
index 0000000000000..3e989830ba206
--- /dev/null
+++ b/Library/Homebrew/test/support/fixtures/bottles/testball_bottle-0.1.arm64_sonoma.bottle.tar.gz
@@ -0,0 +1 @@
+testball_bottle-0.1.yosemite.bottle.tar.gz
\ No newline at end of file
diff --git a/Library/Homebrew/test/support/fixtures/bottles/testball_bottle-0.1.sonoma.bottle.tar.gz b/Library/Homebrew/test/support/fixtures/bottles/testball_bottle-0.1.sonoma.bottle.tar.gz
new file mode 120000
index 0000000000000..3e989830ba206
--- /dev/null
+++ b/Library/Homebrew/test/support/fixtures/bottles/testball_bottle-0.1.sonoma.bottle.tar.gz
@@ -0,0 +1 @@
+testball_bottle-0.1.yosemite.bottle.tar.gz
\ No newline at end of file