Reranko05 · Oct 26, 2026
diff --git a/LICENSE.txt b/LICENSE.txt
@@ -1258,84 +1258,6 @@ THE SOFTWARE.
 
 --------------------------------------------------------------------------------
 
-3rdparty dependency rapidjson is statically linked in certain binary
-distributions, like the python wheels. rapidjson and its dependencies have the
-following licenses:
-
-Tencent is pleased to support the open source community by making RapidJSON
-available.
-
-Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip.
-All rights reserved.
-
-If you have downloaded a copy of the RapidJSON binary from Tencent, please note
-that the RapidJSON binary is licensed under the MIT License.
-If you have downloaded a copy of the RapidJSON source code from Tencent, please
-note that RapidJSON source code is licensed under the MIT License, except for
-the third-party components listed below which are subject to different license
-terms.  Your integration of RapidJSON into your own projects may require
-compliance with the MIT License, as well as the other licenses applicable to
-the third-party components included within RapidJSON. To avoid the problematic
-JSON license in your own projects, it's sufficient to exclude the
-bin/jsonchecker/ directory, as it's the only code under the JSON license.
-A copy of the MIT License is included in this file.
-
-Other dependencies and licenses:
-
-    Open Source Software Licensed Under the BSD License:
-    --------------------------------------------------------------------
-
-    The msinttypes r29
-    Copyright (c) 2006-2013 Alexander Chemeris
-    All rights reserved.
-
-    Redistribution and use in source and binary forms, with or without
-    modification, are permitted provided that the following conditions are met:
-
-    * Redistributions of source code must retain the above copyright notice,
-    this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above copyright notice,
-    this list of conditions and the following disclaimer in the documentation
-    and/or other materials provided with the distribution.
-    * Neither the name of  copyright holder nor the names of its contributors
-    may be used to endorse or promote products derived from this software
-    without specific prior written permission.
-
-    THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
-    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-    DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR
-    ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-    SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-    CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
-    DAMAGE.
-
-    Terms of the MIT License:
-    --------------------------------------------------------------------
-
-    Permission is hereby granted, free of charge, to any person obtaining a
-    copy of this software and associated documentation files (the "Software"),
-    to deal in the Software without restriction, including without limitation
-    the rights to use, copy, modify, merge, publish, distribute, sublicense,
-    and/or sell copies of the Software, and to permit persons to whom the
-    Software is furnished to do so, subject to the following conditions:
-
-    The above copyright notice and this permission notice shall be included
-    in all copies or substantial portions of the Software.
-
-    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-    DEALINGS IN THE SOFTWARE.
-
---------------------------------------------------------------------------------
-
 3rdparty dependency snappy is statically linked in certain binary
 distributions, like the python wheels. snappy has the following license:
 

@@ -43,7 +43,6 @@ nodejs>=16
 orc<2.1.0
 pkg-config
 python
-rapidjson
 re2
 simdjson
 snappy

@@ -55,7 +55,6 @@ RUN apk add \
         py3-pip \
         py3-numpy-dev \
         python3-dev \
-        rapidjson-dev \
         re2-dev \
         rsync \
         samurai \

@@ -87,7 +87,6 @@ RUN apt-get update -y -q && \
         python3-dev \
         python3-pip \
         python3-venv \
-        rapidjson-dev \
         rsync \
         rustc \
         tzdata \

@@ -88,7 +88,6 @@ RUN if [ -n "${gcc}" ]; then \
         python3-dev \
         python3-pip \
         python3-venv \
-        rapidjson-dev \
         rsync \
         tzdata \
         tzdata-legacy \

@@ -58,7 +58,6 @@ RUN dnf update -y && \
         python \
         python-devel \
         python-pip \
-        rapidjson-devel \
         re2-devel \
         simdjson-devel \
         snappy-devel \

@@ -119,7 +119,6 @@ RUN apt-get update -y -q && \
         python3-rados \
         python3-venv \
         rados-objclass-dev \
-        rapidjson-dev \
         rsync \
         tzdata \
         uuid-runtime \

@@ -120,7 +120,6 @@ RUN apt-get update -y -q && \
         python3-rados \
         python3-venv \
         rados-objclass-dev \
-        rapidjson-dev \
         rsync \
         sudo \
         tzdata \

@@ -287,7 +287,6 @@ else
     -DPARQUET_BUILD_EXECUTABLES="${PARQUET_BUILD_EXECUTABLES:-OFF}" \
     -DPARQUET_REQUIRE_ENCRYPTION="${PARQUET_REQUIRE_ENCRYPTION:-ON}" \
     -DProtobuf_SOURCE="${Protobuf_SOURCE:-}" \
-    -DRapidJSON_SOURCE="${RapidJSON_SOURCE:-}" \
     -Dre2_SOURCE="${re2_SOURCE:-}" \
     -Dsimdjson_SOURCE="${simdjson_SOURCE:-}" \
     -DSnappy_SOURCE="${Snappy_SOURCE:-}" \

@@ -43,7 +43,6 @@ case "${target}" in
     packages+=("${MINGW_PACKAGE_PREFIX}-ninja")
     packages+=("${MINGW_PACKAGE_PREFIX}-nlohmann-json")
     packages+=("${MINGW_PACKAGE_PREFIX}-protobuf")
-    packages+=("${MINGW_PACKAGE_PREFIX}-rapidjson")
     packages+=("${MINGW_PACKAGE_PREFIX}-re2")
     packages+=("${MINGW_PACKAGE_PREFIX}-simdjson")
     packages+=("${MINGW_PACKAGE_PREFIX}-snappy")

@@ -57,7 +57,6 @@ apt install -y \
   python3-pip \
   python3-rados \
   rados-objclass-dev \
-  rapidjson-dev \
   tzdata \
   wget
 

@@ -58,7 +58,6 @@
     "json": {
       "description": "JSON support",
       "dependencies": [
-        "rapidjson",
         "simdjson"
       ]
     },

diff --git a/cpp/Brewfile b/cpp/Brewfile
@@ -38,7 +38,6 @@ brew "openssl"
 brew "pkgconf"
 brew "protobuf"
 brew "python"
-brew "rapidjson"
 brew "re2"
 brew "snappy"
 brew "thrift"

diff --git a/cpp/build-support/sanitizer-disallowed-entries.txt b/cpp/build-support/sanitizer-disallowed-entries.txt
@@ -20,6 +20,3 @@
 # Seen error:
 # thirdparty/gmock-1.7.0/include/gmock/gmock-spec-builders.h:1529:12: runtime error: member call on null pointer of type 'testing::internal::ActionResultHolder<void>'
 fun:*testing*internal*InvokeWith*
-
-# Workaround for RapidJSON https://github.com/Tencent/rapidjson/issues/1724
-src:*/rapidjson/internal/*
diff --git a/cpp/cmake_modules/DefineOptions.cmake b/cpp/cmake_modules/DefineOptions.cmake
@@ -365,7 +365,7 @@ takes precedence over ccache if a storage backend is configured" ON)
 
   define_option(ARROW_JEMALLOC "Build the Arrow jemalloc-based allocator" OFF)
 
-  define_option(ARROW_JSON "Build Arrow with JSON support (requires RapidJSON)" OFF)
+  define_option(ARROW_JSON "Build Arrow with JSON support" OFF)
 
   define_option(ARROW_MIMALLOC "Build the Arrow mimalloc-based allocator" ON)
 

diff --git a/cpp/cmake_modules/FindRapidJSONAlt.cmake b/cpp/cmake_modules/FindRapidJSONAlt.cmake
diff --git a/cpp/cmake_modules/ThirdpartyToolchain.cmake b/cpp/cmake_modules/ThirdpartyToolchain.cmake
@@ -63,7 +63,6 @@ set(ARROW_THIRDPARTY_DEPENDENCIES
     orc
     re2
     Protobuf
-    RapidJSON
     simdjson
     Snappy
     Substrait
@@ -209,8 +208,6 @@ macro(build_dependency DEPENDENCY_NAME)
     build_orc()
   elseif("${DEPENDENCY_NAME}" STREQUAL "Protobuf")
     build_protobuf()
-  elseif("${DEPENDENCY_NAME}" STREQUAL "RapidJSON")
-    build_rapidjson()
   elseif("${DEPENDENCY_NAME}" STREQUAL "simdjson")
     build_simdjson()
   elseif("${DEPENDENCY_NAME}" STREQUAL "re2")
@@ -413,10 +410,6 @@ if(ARROW_AZURE)
   set(ARROW_WITH_AZURE_SDK ON)
 endif()
 
-if(ARROW_JSON)
-  set(ARROW_WITH_RAPIDJSON ON)
-endif()
-
 if(ARROW_JSON OR ARROW_FLIGHT_SQL_ODBC)
   set(ARROW_WITH_SIMDJSON ON)
 endif()
@@ -773,14 +766,6 @@ else()
            "${THIRDPARTY_MIRROR_URL}/re2-${ARROW_RE2_BUILD_VERSION}.tar.gz")
 endif()
 
-if(DEFINED ENV{ARROW_RAPIDJSON_URL})
-  set(RAPIDJSON_SOURCE_URL "$ENV{ARROW_RAPIDJSON_URL}")
-else()
-  set_urls(RAPIDJSON_SOURCE_URL
-           "https://github.com/miloyip/rapidjson/archive/${ARROW_RAPIDJSON_BUILD_VERSION}.tar.gz"
-           "${THIRDPARTY_MIRROR_URL}/rapidjson-${ARROW_RAPIDJSON_BUILD_VERSION}.tar.gz")
-endif()
-
 if(DEFINED ENV{ARROW_SIMDJSON_URL})
   set(SIMDJSON_SOURCE_URL "$ENV{ARROW_SIMDJSON_URL}")
 else()
@@ -2907,46 +2892,6 @@ if(ARROW_WITH_SIMDJSON)
   endif()
 endif()
 
-function(build_rapidjson)
-  list(APPEND CMAKE_MESSAGE_INDENT "RapidJSON: ")
-  message(STATUS "Building from source")
-
-  fetchcontent_declare(rapidjson
-                       ${FC_DECLARE_COMMON_OPTIONS} OVERRIDE_FIND_PACKAGE
-                       URL ${RAPIDJSON_SOURCE_URL}
-                       URL_HASH "SHA256=${ARROW_RAPIDJSON_BUILD_SHA256_CHECKSUM}")
-  prepare_fetchcontent()
-  set(CCACHE_FOUND OFF)
-  set(LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib")
-  set(RAPIDJSON_BUILD_DOC OFF)
-  set(RAPIDJSON_BUILD_EXAMPLES OFF)
-  set(RAPIDJSON_BUILD_TESTS OFF)
-  fetchcontent_makeavailable(rapidjson)
-  if(CMAKE_VERSION VERSION_LESS 3.28)
-    set_property(DIRECTORY ${rapidjson_SOURCE_DIR} PROPERTY EXCLUDE_FROM_ALL TRUE)
-  endif()
-
-  add_library(RapidJSON INTERFACE IMPORTED)
-  target_include_directories(RapidJSON INTERFACE "${rapidjson_SOURCE_DIR}/include")
-  add_dependencies(RapidJSON rapidjson)
-
-  set(RAPIDJSON_VENDORED
-      TRUE
-      PARENT_SCOPE)
-  list(POP_BACK CMAKE_MESSAGE_INDENT)
-endfunction()
-
-if(ARROW_WITH_RAPIDJSON)
-  set(ARROW_RAPIDJSON_REQUIRED_VERSION "1.1.0")
-  resolve_dependency(RapidJSON
-                     HAVE_ALT
-                     TRUE
-                     REQUIRED_VERSION
-                     ${ARROW_RAPIDJSON_REQUIRED_VERSION}
-                     IS_RUNTIME_DEPENDENCY
-                     FALSE)
-endif()
-
 function(build_xsimd)
   list(APPEND CMAKE_MESSAGE_INDENT "xsimd: ")
   message(STATUS "Building xsimd from source")

diff --git a/cpp/examples/minimal_build/system_dependency.dockerfile b/cpp/examples/minimal_build/system_dependency.dockerfile
@@ -39,6 +39,5 @@ RUN apt-get update -y -q && \
       libzstd-dev \
       pkg-config \
       protobuf-compiler \
-      rapidjson-dev \
       zlib1g-dev && \
     apt-get clean && rm -rf /var/lib/apt/lists*