diff --git a/.drone.star b/.drone.star
index 5c4cc5db8a..b8e6f8944c 100644
--- a/.drone.star
+++ b/.drone.star
@@ -15,7 +15,7 @@ windowsglobalimage="cppalliance/dronevs2019"
 
 def main(ctx):
 
-  things_to_test = [ "special_fun", "distribution_tests", "mp", "misc", "interpolators", "quadrature", "autodiff", "long-running-tests", "float128_tests" ]
+  things_to_test = [ "git_issue_935" ]
   sanitizer_test = [ "special_fun", "distribution_tests", "misc", "interpolators", "quadrature", "float128_tests" ]
   gnu_5_stds = [ "gnu++14", "c++14" ]
   gnu_6_stds = [ "gnu++14", "c++14", "gnu++17", "c++17" ]
@@ -26,39 +26,18 @@ def main(ctx):
 
   result = []
 
-  for suite in sanitizer_test:
+  #for suite in sanitizer_test:
     #
     # Sanitizers:
     #
-    result.append(linux_cxx("Ubuntu g++-10 C++2a ASAN" + " " + suite, "g++-10", packages="g++-10", privileged=True, buildtype="boost", image="cppalliance/droneubuntu2004:1", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++-10', 'CXXSTD': 'gnu++2a', 'TEST_SUITE': suite, 'OPTIONS': '<cxxflags>-fsanitize=address <linkflags>-fsanitize=address <cxxflags>-DBOOST_CI_SANITIZER_BUILD' }, globalenv=globalenv))
-    result.append(linux_cxx("Ubuntu g++-10 C++2a USAN" + " " + suite, "g++-10", packages="g++-10", privileged=True, buildtype="boost", image="cppalliance/droneubuntu2004:1", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++-10', 'CXXSTD': 'gnu++2a', 'TEST_SUITE': suite, 'OPTIONS': '<cxxflags>-fsanitize=undefined <linkflags>-fsanitize=undefined <cxxflags>-DBOOST_CI_SANITIZER_BUILD' }, globalenv=globalenv))
-    result.append(linux_cxx("Ubuntu g++-10 C++2a TSAN" + " " + suite, "g++-10", packages="g++-10", privileged=True, buildtype="boost", image="cppalliance/droneubuntu2004:1", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++-10', 'CXXSTD': 'gnu++2a', 'TEST_SUITE': suite, 'OPTIONS': '<cxxflags>-fsanitize=thread <linkflags>-fsanitize=thread <cxxflags>-DBOOST_CI_SANITIZER_BUILD' }, globalenv=globalenv))
-    result.append(linux_cxx("Ubuntu clang++-10 C++2a ISAN" + " " + suite, "clang++-10", packages="clang-10", privileged=True, buildtype="boost", image="cppalliance/droneubuntu2004:1", environment={'TOOLSET': 'clang', 'COMPILER': 'clang++-10', 'CXXSTD': 'gnu++2a', 'TEST_SUITE': suite, 'OPTIONS': '<cxxflags>-fsanitize=integer <linkflags>-fsanitize=integer' }, globalenv=globalenv))
+    #result.append(linux_cxx("Ubuntu g++-10 C++2a ASAN" + " " + suite, "g++-10", packages="g++-10", privileged=True, buildtype="boost", image="cppalliance/droneubuntu2004:1", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++-10', 'CXXSTD': 'gnu++2a', 'TEST_SUITE': suite, 'OPTIONS': '<cxxflags>-fsanitize=address <linkflags>-fsanitize=address <cxxflags>-DBOOST_CI_SANITIZER_BUILD' }, globalenv=globalenv))
+    #result.append(linux_cxx("Ubuntu g++-10 C++2a USAN" + " " + suite, "g++-10", packages="g++-10", privileged=True, buildtype="boost", image="cppalliance/droneubuntu2004:1", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++-10', 'CXXSTD': 'gnu++2a', 'TEST_SUITE': suite, 'OPTIONS': '<cxxflags>-fsanitize=undefined <linkflags>-fsanitize=undefined <cxxflags>-DBOOST_CI_SANITIZER_BUILD' }, globalenv=globalenv))
+    #result.append(linux_cxx("Ubuntu g++-10 C++2a TSAN" + " " + suite, "g++-10", packages="g++-10", privileged=True, buildtype="boost", image="cppalliance/droneubuntu2004:1", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++-10', 'CXXSTD': 'gnu++2a', 'TEST_SUITE': suite, 'OPTIONS': '<cxxflags>-fsanitize=thread <linkflags>-fsanitize=thread <cxxflags>-DBOOST_CI_SANITIZER_BUILD' }, globalenv=globalenv))
+    #result.append(linux_cxx("Ubuntu clang++-10 C++2a ISAN" + " " + suite, "clang++-10", packages="clang-10", privileged=True, buildtype="boost", image="cppalliance/droneubuntu2004:1", environment={'TOOLSET': 'clang', 'COMPILER': 'clang++-10', 'CXXSTD': 'gnu++2a', 'TEST_SUITE': suite, 'OPTIONS': '<cxxflags>-fsanitize=integer <linkflags>-fsanitize=integer' }, globalenv=globalenv))
 
   for suite in things_to_test:
-    for cxx in gnu_5_stds:
-      result.append(linux_cxx("Ubuntu g++-5 " + cxx + " " + suite, "g++-5", packages="g++-5", buildtype="boost", image="cppalliance/droneubuntu1804:1", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++-5', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
-    for cxx in gnu_6_stds:
-      result.append(linux_cxx("Ubuntu g++-6 " + cxx + " " + suite, "g++-6", packages="g++-6", buildtype="boost", image="cppalliance/droneubuntu1804:1", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++-6', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
-      result.append(linux_cxx("Ubuntu g++-7 " + cxx + " " + suite, "g++-7", packages="g++-7", buildtype="boost", image="cppalliance/droneubuntu1804:1", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++-7', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
-      result.append(linux_cxx("Ubuntu g++-8 " + cxx + " " + suite, "g++-8", packages="g++-8", buildtype="boost", image="cppalliance/droneubuntu2004:1", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++-8', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
-      result.append(linux_cxx("Ubuntu g++-9 " + cxx + " " + suite, "g++-9", packages="g++-9", buildtype="boost", image="cppalliance/droneubuntu2004:1", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++-9', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
-    for cxx in clang_6_stds:
-      result.append(linux_cxx("Ubuntu clang++-6 " + cxx + " " + suite, "clang++-6.0", packages="clang-6.0", llvm_os="xenial", llvm_ver="6.0", buildtype="boost", image="cppalliance/droneubuntu1804:1", environment={'TOOLSET': 'clang', 'COMPILER': 'clang++-6.0', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
-      result.append(linux_cxx("Ubuntu clang++-7 " + cxx + " " + suite, "clang++-7", packages="clang-7", llvm_os="xenial", llvm_ver="7", buildtype="boost", image="cppalliance/droneubuntu1804:1", environment={'TOOLSET': 'clang', 'COMPILER': 'clang++-7', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
-      result.append(linux_cxx("Ubuntu clang++-8 " + cxx + " " + suite, "clang++-8", packages="clang-8", llvm_os="xenial", llvm_ver="8", buildtype="boost", image="cppalliance/droneubuntu1804:1", environment={'TOOLSET': 'clang', 'COMPILER': 'clang++-8', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
-      result.append(linux_cxx("Ubuntu clang++-9 " + cxx + " " + suite, "clang++-9", packages="clang-9", llvm_os="xenial", llvm_ver="9", buildtype="boost", image="cppalliance/droneubuntu1804:1", environment={'TOOLSET': 'clang', 'COMPILER': 'clang++-9', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
-    for cxx in gnu_9_stds:
-      result.append(linux_cxx("Ubuntu g++-10 " + cxx + " " + suite, "g++-10", packages="g++-10", buildtype="boost", image="cppalliance/droneubuntu2004:1", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++-10', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
-      result.append(linux_cxx("Ubuntu g++-11 " + cxx + " " + suite, "g++-11", packages="g++-11", buildtype="boost", image="cppalliance/droneubuntu2004:1", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++-11', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
-    for cxx in clang_10_stds:
-      result.append(linux_cxx("Ubuntu clang++-10 " + cxx + " " + suite, "clang++-10", packages="clang-10", llvm_os="xenial", llvm_ver="10", buildtype="boost", image="cppalliance/droneubuntu1804:1", environment={'TOOLSET': 'clang', 'COMPILER': 'clang++-10', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
     for cxx in gnu_non_native:
-      result.append(linux_cxx("Ubuntu g++ s390s " + cxx + " " + suite, "g++", packages="g++", buildtype="boost", image="cppalliance/droneubuntu2204:multiarch", arch="s390x", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
-    for cxx in gnu_non_native:
-      result.append(linux_cxx("Ubuntu g++ ARM64" + cxx + " " + suite, "g++", packages="g++", buildtype="boost", image="cppalliance/droneubuntu2204:multiarch", arch="arm64", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
-    for cxx in gnu_non_native:
-      result.append(osx_cxx("M1 Clang " + cxx + " " + suite, "clang++", buildscript="drone", buildtype="boost", xcode_version="14.1", environment={'TOOLSET': 'clang', 'CXXSTD': cxx, 'TEST_SUITE': suite, 'DEFINE': 'BOOST_MATH_NO_REAL_CONCEPT_TESTS,BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS,BOOST_MATH_MULTI_ARCH_CI_RUN', }, globalenv=globalenv))
+      result.append(osx_cxx("M1 Clang " + cxx + " " + suite, "clang++", buildscript="drone", buildtype="boost", xcode_version="13.3.1", environment={'TOOLSET': 'clang', 'CXXSTD': 'c++14', 'TEST_SUITE': suite, 'DEFINE': 'BOOST_MATH_MULTI_ARCH_CI_RUN', }, globalenv=globalenv))
 
   return result
 
diff --git a/.drone/boost.sh b/.drone/boost.sh
index baa747311f..406c09a29f 100755
--- a/.drone/boost.sh
+++ b/.drone/boost.sh
@@ -39,8 +39,9 @@ echo '==================================> BEFORE_SCRIPT'
 
 echo '==================================> SCRIPT'
 
-echo "using $TOOLSET : : $COMPILER : <cxxflags>-std=$CXXSTD $OPTIONS ;" > ~/user-config.jam
-(cd libs/config/test && ../../../b2 print_config_info print_math_info toolset=$TOOLSET)
+echo "using $TOOLSET : : $COMPILER : <cxxflags>-std=$CXXSTD $OPTIONS <cxxflags>"-arch arm64" ;" > ~/user-config.jam
+uname -a
+(cd libs/config/test && ../../../b2 -d2 print_config_info print_math_info toolset=$TOOLSET)
 (cd libs/math/test && ../../../b2 -j3 toolset=$TOOLSET $TEST_SUITE)
 
 echo '==================================> AFTER_SUCCESS'
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
deleted file mode 100644
index 2abccdcf6a..0000000000
--- a/.github/workflows/ci.yml
+++ /dev/null
@@ -1,480 +0,0 @@
-# Copyright 2020 Evan Miller
-# Copyright 2020 Matt Borland
-# Distributed under the Boost Software License, Version 1.0.
-# (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
-
-name: CI
-on:
-  push:
-    branches:
-      - master
-      - develop
-  pull_request:
-  release:
-    types: [published, created, edited]
-
-concurrency:
-  group: ${{ github.head_ref || github.run_id }}
-  cancel-in-progress: true
-
-jobs:
-  ubuntu-jammy:
-    runs-on: ubuntu-22.04
-    strategy:
-      fail-fast: false
-      matrix:
-        compiler: [ g++-12, clang++-14 ]
-        standard: [ c++14, c++17, c++20 ]
-        suite: [ github_ci_block_1, github_ci_block_2 ]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: '0'
-      - name: Set TOOLSET
-        run: echo ${{ matrix.compiler }} | awk '/^g/ { print "TOOLSET=gcc" } /^clang/ { print "TOOLSET=clang" }' >> $GITHUB_ENV
-      - name: Add repository
-        continue-on-error: true
-        id: addrepo
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Retry Add Repo
-        continue-on-error: true
-        id: retry1
-        if: steps.addrepo.outcome=='failure'
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Retry Add Repo 2
-        continue-on-error: true
-        id: retry2
-        if: steps.retry1.outcome=='failure'
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Install packages
-        run: sudo apt install g++-12 clang-14 libgmp-dev libmpfr-dev libfftw3-dev
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: cp -r $GITHUB_WORKSPACE/* libs/math
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py math
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: ./bootstrap.sh
-        working-directory: ../boost-root
-      - name: Generate headers
-        run: ./b2 headers
-        working-directory: ../boost-root
-      - name: Generate user config
-        run: 'echo "using $TOOLSET : : ${{ matrix.compiler }} : <cxxflags>-std=${{ matrix.standard }} ;" > ~/user-config.jam'
-        working-directory: ../boost-root
-      - name: Config info install
-        run: ../../../b2 config_info_travis_install toolset=$TOOLSET
-        working-directory: ../boost-root/libs/config/test
-      - name: Config info
-        run: ./config_info_travis
-        working-directory: ../boost-root/libs/config/test
-      - name: Test
-        run: ../../../b2 toolset=$TOOLSET ${{ matrix.suite }} define=CI_SUPPRESS_KNOWN_ISSUES define=SLOW_COMPILER
-        working-directory: ../boost-root/libs/math/test
-  ubuntu-focal-no-eh:
-    runs-on: ubuntu-20.04
-    strategy:
-      fail-fast: false
-      matrix:
-        compiler: [ g++-9, g++-11, clang++-10 ]
-        standard: [ c++14, c++17, c++2a ]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: '0'
-      - name: Set TOOLSET
-        run: echo ${{ matrix.compiler }} | awk '/^g/ { print "TOOLSET=gcc" } /^clang/ { print "TOOLSET=clang" }' >> $GITHUB_ENV
-      - name: Add repository
-        continue-on-error: true
-        id: addrepo
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Retry Add Repo
-        continue-on-error: true
-        id: retry1
-        if: steps.addrepo.outcome=='failure'
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Retry Add Repo 2
-        continue-on-error: true
-        id: retry2
-        if: steps.retry1.outcome=='failure'
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Install packages
-        run: sudo apt install g++-9 g++-11 clang-9 clang-10 libgmp-dev libmpfr-dev libfftw3-dev
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: cp -r $GITHUB_WORKSPACE/* libs/math
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py math
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: ./bootstrap.sh
-        working-directory: ../boost-root
-      - name: Generate headers
-        run: ./b2 headers
-        working-directory: ../boost-root
-      - name: Generate user config
-        run: 'echo "using $TOOLSET : : ${{ matrix.compiler }} : <cxxflags>-std=${{ matrix.standard }} ;" > ~/user-config.jam'
-        working-directory: ../boost-root
-      - name: Config info install
-        run: ../../../b2 config_info_travis_install toolset=$TOOLSET
-        working-directory: ../boost-root/libs/config/test
-      - name: Config info
-        run: ./config_info_travis
-        working-directory: ../boost-root/libs/config/test
-      - name: Test
-        run: ../../../b2 toolset=$TOOLSET no_eh_tests exception-handling=off rtti=off define=CI_SUPPRESS_KNOWN_ISSUES define=SLOW_COMPILER
-        working-directory: ../boost-root/libs/math/test
-  macos:
-    runs-on: macos-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        toolset: [ clang ]
-        standard: [ 14, 17, 20 ]
-        suite: [ github_ci_block_1, github_ci_block_2 ]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: '0'
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: cp -r $GITHUB_WORKSPACE/* libs/math
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py math
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: ./bootstrap.sh
-        working-directory: ../boost-root
-      - name: Generate headers
-        run: ./b2 headers
-        working-directory: ../boost-root
-      - name: Config info install
-        run: ../../../b2 config_info_travis_install toolset=${{ matrix.toolset }} cxxstd=${{ matrix.standard }}
-        working-directory: ../boost-root/libs/config/test
-      - name: Config info
-        run: ./config_info_travis
-        working-directory: ../boost-root/libs/config/test
-      - name: Test
-        run: ../../../b2 toolset=${{ matrix.toolset }} cxxstd=${{ matrix.standard }} ${{ matrix.suite }} define=CI_SUPPRESS_KNOWN_ISSUES define=SLOW_COMPILER
-        working-directory: ../boost-root/libs/math/test
-  windows:
-    runs-on: windows-2019
-    defaults:
-      run:
-        shell: cmd
-    env:
-      ARGS: toolset=${{ matrix.toolset }} address-model=64 cxxstd=${{ matrix.standard }}
-    strategy:
-      fail-fast: false
-      matrix:
-        toolset: [ msvc-14.0, msvc-14.2 ]
-        standard: [ 14, 17 ]
-        suite: [ github_ci_block_1, github_ci_block_2 ]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: '0'
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: xcopy /s /e /q %GITHUB_WORKSPACE% libs\math
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py math
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: bootstrap
-        working-directory: ../boost-root
-      - name: Generate headers
-        run: b2 headers
-        working-directory: ../boost-root
-      - name: Config info install
-        run: ..\..\..\b2 config_info_travis_install %ARGS%
-        working-directory: ../boost-root/libs/config/test
-      - name: Config info
-        run: config_info_travis
-        working-directory: ../boost-root/libs/config/test
-      - name: Test
-        run: ..\..\..\b2 --hash %ARGS% define=CI_SUPPRESS_KNOWN_ISSUES ${{ matrix.suite }}
-        working-directory: ../boost-root/libs/math/test
-  windows_gcc:
-    runs-on: windows-2019
-    defaults:
-      run:
-        shell: cmd
-    env:
-      ARGS: toolset=${{ matrix.toolset }} address-model=64 cxxstd=${{ matrix.standard }}
-    strategy:
-      fail-fast: false
-      matrix:
-        toolset: [ gcc ]
-        standard: [ 14, 17 ]
-        suite: [ github_ci_block_1, github_ci_block_2 ]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: '0'
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: xcopy /s /e /q %GITHUB_WORKSPACE% libs\math
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py math
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: bootstrap
-        working-directory: ../boost-root
-      - name: Generate headers
-        run: b2 headers
-        working-directory: ../boost-root
-      - name: Config info install
-        run: ..\..\..\b2 config_info_travis_install %ARGS%
-        working-directory: ../boost-root/libs/config/test
-      - name: Config info
-        run: config_info_travis
-        working-directory: ../boost-root/libs/config/test
-      - name: Test
-        run: ..\..\..\b2 --hash %ARGS% define=CI_SUPPRESS_KNOWN_ISSUES ${{ matrix.suite }}
-        working-directory: ../boost-root/libs/math/test
-  MSVC2022:
-    runs-on: windows-2022
-    defaults:
-      run:
-        shell: cmd
-    env:
-      ARGS: address-model=64 cxxstd=${{ matrix.standard }}
-    strategy:
-      fail-fast: false
-      matrix:
-        standard: [ 14, 17, 20 ]
-        suite: [ github_ci_block_1, github_ci_block_2 ]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: '0'
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: xcopy /s /e /q %GITHUB_WORKSPACE% libs\math
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py math
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: bootstrap
-        working-directory: ../boost-root
-      - name: Generate headers
-        run: b2 headers
-        working-directory: ../boost-root
-      - name: Config info install
-        run: ..\..\..\b2 config_info_travis_install %ARGS%
-        working-directory: ../boost-root/libs/config/test
-      - name: Config info
-        run: config_info_travis
-        working-directory: ../boost-root/libs/config/test
-      - name: Test
-        run: ..\..\..\b2 --hash %ARGS% define=CI_SUPPRESS_KNOWN_ISSUES ${{ matrix.suite }}
-        working-directory: ../boost-root/libs/math/test
-  cygwin:
-    runs-on: windows-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        compiler: [ g++-11 ]
-        standard: [ c++17 ]
-        suite: [ github_ci_block_1, github_ci_block_2 ]
-    env:
-      TOOLSET: gcc
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: '0'
-      - name: Install Cygwin
-        run: choco install -y cygwin
-      - name: Install Package Manager
-        run: choco install -y cyg-get
-      - name: Install Packages
-        run: cyg-get git gcc-core gcc-g++ python39 libgmp-devel libmpfr-devel libfftw3-devel
-      - name: Checkout main boost
-        run: C:\\tools\\cygwin\\bin\\bash -l -c 'cd $(cygpath -u "$GITHUB_WORKSPACE") && git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root'
-      - name: Update tools/boostdep
-        run: C:\\tools\\cygwin\\bin\\bash -l -c 'cd $(cygpath -u "$GITHUB_WORKSPACE")/../boost-root && git submodule update --init tools/boostdep'
-      - name: Copy files
-        run: C:\\tools\\cygwin\\bin\\bash -l -c 'cd $(cygpath -u "$GITHUB_WORKSPACE") && cp -r * ../boost-root/libs/math'
-      - name: Install deps
-        run: C:\\tools\\cygwin\\bin\\bash -l -c 'cd $(cygpath -u "$GITHUB_WORKSPACE")/../boost-root && python tools/boostdep/depinst/depinst.py math'
-      - name: Bootstrap
-        run: C:\\tools\\cygwin\\bin\\bash -l -c 'cd $(cygpath -u "$GITHUB_WORKSPACE")/../boost-root && ./bootstrap.sh'
-      - name: Generate headers
-        run: C:\\tools\\cygwin\\bin\\bash -l -c 'cd $(cygpath -u "$GITHUB_WORKSPACE")/../boost-root && ./b2 headers'
-      - name: Config info install
-        run: C:\\tools\\cygwin\\bin\\bash -l -c 'cd $(cygpath -u "$GITHUB_WORKSPACE")/../boost-root/libs/config/test && ../../../b2 config_info_travis_install toolset=$TOOLSET'
-      - name: Config info
-        run: C:\\tools\\cygwin\\bin\\bash -l -c 'cd $(cygpath -u "$GITHUB_WORKSPACE")/../boost-root/libs/config/test && ./config_info_travis'
-      - name: Test
-        run: C:\\tools\\cygwin\\bin\\bash -l -c 'cd $(cygpath -u "$GITHUB_WORKSPACE")/../boost-root/libs/math/test && ../../../b2 toolset=$TOOLSET ${{ matrix.suite }} define=CI_SUPPRESS_KNOWN_ISSUES define=SLOW_COMPILER'
-  standalone-compile-tests-gcc:
-    runs-on: ubuntu-20.04
-    strategy:
-      fail-fast: false
-      matrix:
-        compiler: [ g++-10 ]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: '0'
-      - name: Add repository
-        continue-on-error: true
-        id: addrepo
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Retry Add Repo
-        continue-on-error: true
-        id: retry1
-        if: steps.addrepo.outcome=='failure'
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Retry Add Repo 2
-        continue-on-error: true
-        id: retry2
-        if: steps.retry1.outcome=='failure'
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Install packages
-        run: sudo apt install g++-10 libgmp-dev libmpfr-dev libfftw3-dev
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: cp -r $GITHUB_WORKSPACE/* libs/math
-        working-directory: ../boost-root
-      - name: Run CMake
-        run: cmake -DBUILD_TESTING=1 -DCMAKE_CXX_COMPILER=g++-10 .
-        working-directory: ../boost-root/libs/math
-      - name: Run Compile Tests
-        run: make -j$((`nproc`+1))
-        working-directory: ../boost-root/libs/math
-  standalone-compile-tests-clang:
-    runs-on: ubuntu-20.04
-    strategy:
-      fail-fast: false
-      matrix:
-        compiler: [ clang++-10 ]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: '0'
-      - name: Add repository
-        continue-on-error: true
-        id: addrepo
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Retry Add Repo
-        continue-on-error: true
-        id: retry1
-        if: steps.addrepo.outcome=='failure'
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Retry Add Repo 2
-        continue-on-error: true
-        id: retry2
-        if: steps.retry1.outcome=='failure'
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Install packages
-        run: sudo apt install clang-10 libgmp-dev libmpfr-dev libfftw3-dev
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: cp -r $GITHUB_WORKSPACE/* libs/math
-        working-directory: ../boost-root
-      - name: Run CMake
-        run: cmake -DBUILD_TESTING=1 -DCMAKE_CXX_COMPILER=clang++-10 .
-        working-directory: ../boost-root/libs/math
-      - name: Run Compile Tests
-        run: make -j$((`nproc`+1))
-        working-directory: ../boost-root/libs/math
-  standalone-gcc:
-    runs-on: ubuntu-20.04
-    strategy:
-      fail-fast: false
-      matrix:
-        compiler: [ g++-10 ]
-        standard: [ c++14, c++17, c++20 ]
-        suite: [ github_ci_block_1, github_ci_block_2 ]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: '0'
-      - name: Set TOOLSET
-        run: echo ${{ matrix.compiler }} | awk '/^g/ { print "TOOLSET=gcc" } /^clang/ { print "TOOLSET=clang" }' >> $GITHUB_ENV
-      - name: Add repository
-        continue-on-error: true
-        id: addrepo
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Retry Add Repo
-        continue-on-error: true
-        id: retry1
-        if: steps.addrepo.outcome=='failure'
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Retry Add Repo 2
-        continue-on-error: true
-        id: retry2
-        if: steps.retry1.outcome=='failure'
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Install packages
-        run: sudo apt install g++-10 libgmp-dev libmpfr-dev libfftw3-dev
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: cp -r $GITHUB_WORKSPACE/* libs/math
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py math
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: ./bootstrap.sh
-        working-directory: ../boost-root
-      - name: Generate headers
-        run: ./b2 headers
-        working-directory: ../boost-root
-      - name: Generate user config
-        run: 'echo "using $TOOLSET : : ${{ matrix.compiler }} : <cxxflags>-std=${{ matrix.standard }} ;" > ~/user-config.jam'
-        working-directory: ../boost-root
-      - name: Config info install
-        run: ../../../b2 config_info_travis_install toolset=$TOOLSET
-        working-directory: ../boost-root/libs/config/test
-      - name: Config info
-        run: ./config_info_travis
-        working-directory: ../boost-root/libs/config/test
-      - name: Test
-        run: ../../../b2 toolset=$TOOLSET ${{ matrix.suite }} define=CI_SUPPRESS_KNOWN_ISSUES define=SLOW_COMPILER define=BOOST_MATH_STANDALONE define=BOOST_MP_STANDALONE
-        working-directory: ../boost-root/libs/math/test
diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 4afae3bf74..c09597499b 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -893,6 +893,7 @@ test-suite distribution_tests :
    [ compile test_dist_deduction_guides.cpp : [ requires cpp_deduction_guides cpp_variadic_templates ] ]
    [ run git_issue_800.cpp ../../test/build//boost_unit_test_framework  ]
    [ run git_issue_845.cpp ../../test/build//boost_unit_test_framework  ]
+   [ run git_issue_935.cpp : : : release ]
    [ run scipy_issue_14901.cpp ../../test/build//boost_unit_test_framework ]
    [ run scipy_issue_17146.cpp ../../test/build//boost_unit_test_framework  ]
    [ run scipy_issue_17388.cpp ../../test/build//boost_unit_test_framework  ]
diff --git a/test/git_issue_935.cpp b/test/git_issue_935.cpp
new file mode 100644
index 0000000000..b36e9c0edf
--- /dev/null
+++ b/test/git_issue_935.cpp
@@ -0,0 +1,30 @@
+// Copyright John Maddock, 2023
+// Use, modification and distribution are subject to the
+// Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt
+// or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#define BOOST_MATH_DOMAIN_ERROR_POLICY ignore_error
+#define BOOST_MATH_OVERFLOW_ERROR_POLICY ignore_error
+#define BOOST_MATH_PROMOTE_DOUBLE_POLICY false
+
+#include <cmath>
+#include <limits>
+#include <boost/math/distributions/negative_binomial.hpp>
+#include "math_unit_test.hpp"
+
+int main() 
+{
+   using namespace boost::math;
+
+   negative_binomial n(5.0, 0.5);
+
+   for (double k = 0; k < 15; ++k)
+   {
+      auto c = cdf(n, k);
+      auto q = quantile(n, c);
+      CHECK_EQUAL(q, k);
+   }
+
+   return boost::math::test::report_errors();
+}