Update array from master

The documentation is built at tools/boostbook/doc/html, and
tools/boostbook/index.html contains a universal redirect to the actual
location of the docs entry point.

This also resolves the circular redirect in doc/html/boostbook.html.

Refs https://github.com/boostorg/boost/issues/937.

.circleci/autocancel.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+# Auto-cancel preceding workflows
+# https://discuss.circleci.com/t/workaround-auto-cancel-redundant-builds-on-the-default-branch/39468
+
+set -x
+
+## Get the name of the workflow and the related pipeline number
+curl --header "Circle-Token: $PERS_API_TOKEN_BOOST_5" --request GET "https://circleci.com/api/v2/workflow/${CIRCLE_WORKFLOW_ID}" -o current_workflow.json
+WF_NAME=$(jq -r '.name' current_workflow.json)
+CURRENT_PIPELINE_NUM=$(jq -r '.pipeline_number' current_workflow.json)
+CURRENT_PIPELINE_CREATED=$(jq -r '.created_at' current_workflow.json)
+TIME_THRESHOLD=$(date --utc +'%Y-%m-%dT%TZ' -d "${CURRENT_PIPELINE_CREATED} -10 minutes")
+
+## Get the IDs of pipelines created by the current user on the same branch. (Only consider pipelines that have a pipeline number inferior to the current pipeline)
+PIPE_IDS=$(curl --header "Circle-Token: $PERS_API_TOKEN_BOOST_5" --request GET "https://circleci.com/api/v2/project/gh/$CIRCLE_PROJECT_USERNAME/$CIRCLE_PROJECT_REPONAME/pipeline?branch=$CIRCLE_BRANCH"|jq -r --argjson CURRENT_PIPELINE_NUM "$CURRENT_PIPELINE_NUM" --arg TIME_THRESHOLD "${TIME_THRESHOLD}" '.items[] | select(.state == "created") | select(.number < $CURRENT_PIPELINE_NUM) | select(.created_at > $TIME_THRESHOLD) | .id')
+
+## Get the IDs of currently running/on_hold workflows that have the same name as the current workflow, in all previously created pipelines.
+if [ ! -z "$PIPE_IDS" ]; then
+  for PIPE_ID in $PIPE_IDS
+  do
+    curl --header "Circle-Token: $PERS_API_TOKEN_BOOST_5" --request GET "https://circleci.com/api/v2/pipeline/${PIPE_ID}/workflow"|jq -r --arg WF_NAME "${WF_NAME}" '.items[]|select(.status == "on_hold" or .status == "running") | select(.name == $WF_NAME) | .id' >> WF_to_cancel.txt
+  done
+fi
+
+## Cancel any currently running/on_hold workflow with the same name
+if [ -s WF_to_cancel.txt ]; then
+  echo "Cancelling the following workflow(s):"
+  cat WF_to_cancel.txt
+  while read WF_ID;
+    do
+      curl --header "Circle-Token: $PERS_API_TOKEN_BOOST_5" --request POST https://circleci.com/api/v2/workflow/$WF_ID/cancel
+    done < WF_to_cancel.txt
+  ## Allowing some time to complete the cancellation
+  sleep 2
+  else
+    echo "Nothing to cancel"
+fi

.circleci/config.yml

@@ -1,11 +1,12 @@
-version: 2
+version: 2.1
 jobs:
   build:
     docker:
-      - image: cppalliance/boost_superproject_build:20.04-v1
+      - image: cppalliance/boost_superproject_build:24.04-v3
     parallelism: 2
     steps:
       - checkout
+      - run: ./.circleci/autocancel.sh || true
       - run: wget "https://raw.githubusercontent.com/boostorg/release-tools/master/ci_boost_common.py" -P ${HOME}
       - run: wget "https://raw.githubusercontent.com/boostorg/release-tools/master/ci_boost_release.py" -P ${HOME}
       - run: python3 ${HOME}/ci_boost_release.py checkout_post

.github/workflows/ci.yml

@@ -1,8 +1,11 @@
 name: CI
 
 on:
+  pull_request:
   push:
     branches:
+      - master
+      - develop
       - feature/**
     tags:
       - '**'
@@ -15,13 +18,17 @@ jobs:
         include:
           - os: ubuntu-20.04
           - os: ubuntu-22.04
-          - os: macos-11
-          - os: macos-12
+          - os: ubuntu-22.04-arm
+          - os: ubuntu-24.04
+          - os: ubuntu-24.04-arm
+          - os: macos-13
+          - os: macos-14
+          - os: macos-15
 
     runs-on: ${{matrix.os}}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true
 
@@ -50,11 +57,12 @@ jobs:
         include:
           - os: windows-2019
           - os: windows-2022
+          - os: windows-2025
 
     runs-on: ${{matrix.os}}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true
 
@@ -84,13 +92,18 @@ jobs:
         include:
           - os: ubuntu-20.04
           - os: ubuntu-22.04
-          - os: macos-11
-          - os: macos-12
+          - os: ubuntu-22.04-arm
+          - os: ubuntu-24.04
+          - os: ubuntu-24.04-arm
+          - os: macos-13
+          - os: macos-14
+          - os: macos-15
 
     runs-on: ${{matrix.os}}
+    timeout-minutes: 20
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true
 
@@ -116,11 +129,12 @@ jobs:
         include:
           - os: windows-2019
           - os: windows-2022
+          - os: windows-2025
 
     runs-on: ${{matrix.os}}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true
 
@@ -144,15 +158,49 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - os: ubuntu-20.04
-          - os: ubuntu-22.04
-          - os: macos-11
-          - os: macos-12
+          - os: ubuntu-latest
 
     runs-on: ${{matrix.os}}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Configure Boost
+        run: |
+          mkdir __build__ && cd __build__
+          cmake -DBUILD_TESTING=ON -DBOOST_EXCLUDE_LIBRARIES="process;geometry" ..
+
+      - name: Build tests
+        run: |
+          cd __build__
+          cmake --build . -j 3 --target tests
+
+      - name: Run tests
+        run: |
+          cd __build__
+          ctest --output-on-failure --no-tests=error -j 3
+
+  cmake-test-posix-quick:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-20.04
+          - os: ubuntu-22.04
+          - os: ubuntu-22.04-arm
+          - os: ubuntu-24.04
+          - os: ubuntu-24.04-arm
+          - os: macos-13
+          - os: macos-14
+          - os: macos-15
+
+    runs-on: ${{matrix.os}}
+    timeout-minutes: 90
+
+    steps:
+      - uses: actions/checkout@v4
         with:
           submodules: true
 
@@ -164,37 +212,38 @@ jobs:
       - name: Build tests
         run: |
           cd __build__
-          cmake --build . -j 3 --target tests
+          cmake --build . -j 3 --target tests-quick
 
       - name: Run tests
         run: |
           cd __build__
           ctest --output-on-failure --no-tests=error -j 3 -R quick
 
-  cmake-test-windows:
+  cmake-test-windows-quick:
     strategy:
       fail-fast: false
       matrix:
         include:
           - os: windows-2019
           - os: windows-2022
+          - os: windows-2025
 
     runs-on: ${{matrix.os}}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true
 
       - name: Configure Boost
         run: |
           mkdir __build__ && cd __build__
-          cmake -DBUILD_TESTING=ON -DBOOST_EXCLUDE_LIBRARIES="convert;outcome" ..
+          cmake -DBUILD_TESTING=ON ..
 
       - name: Build tests
         run: |
           cd __build__
-          cmake --build . -j 3 --target tests
+          cmake --build . -j 3 --target tests-quick
 
       - name: Run tests
         run: |

.github/workflows/commit-bot.yml

@@ -0,0 +1,132 @@
+name: Commit Bot
+
+# Instructions
+#
+# - One-time setup: create a personal access token with permissions. Then configure it here
+#   as secrets.CI_PAT. https://github.com/boostorg/boost/settings/secrets/actions
+#   The reason is explained in https://github.com/orgs/community/discussions/25702
+#   "If an action pushes code using the repository's GITHUB_TOKEN, a new workflow will not run"
+#
+# - Processing of either the 'master' or 'develop' branch may be stopped by creating the variables
+#   vars.block_master or vars.block_develop with any value.
+#   https://github.com/boostorg/boost/settings/variables/actions
+#
+
+# To avoid infinite loops, don't trigger on "push"
+on:
+  schedule:
+    - cron: "0,30 * * * *"
+
+concurrency:
+  group: ${{format('commit-bot-{0}:{1}', github.repository, github.ref)}}
+  cancel-in-progress: true
+
+jobs:
+  update-modules:
+    runs-on: ubuntu-latest
+    name: Commit Bot
+    if: github.repository == 'boostorg/boost'
+
+    steps:
+      - name: Check for module updates
+        id: branches
+        run: |
+            set -xe
+            branches=""
+            if [[ "${{ github.event_name }}" == "push" ]]; then
+                if [[ ! -n "${{ vars.block_master }}" && "${{ github.ref_name }}" == "master" ]]; then
+                    branches="master"
+                elif [[ ! -n "${{ vars.block_develop }}" && "${{ github.ref_name }}" == "develop" ]]; then
+                    branches="develop"
+                else
+                    branches="${{ github.ref_name }}"
+                fi
+            else
+                # from a schedule:
+                if [[ ! -n "${{ vars.block_master }}" ]]; then
+                    branches="master"
+                fi
+                if [[ ! -n "${{ vars.block_develop }}" ]]; then
+                    branches="${branches} develop"
+                fi
+            fi
+            echo "branches=$branches" >> $GITHUB_OUTPUT
+
+      - name: Checkout master repository
+        uses: actions/checkout@v4
+        if: contains(steps.branches.outputs.branches, 'master')
+        with:
+          ref: master
+          path: master
+          persist-credentials: false
+
+      - name: Checkout develop repository
+        uses: actions/checkout@v4
+        if: contains(steps.branches.outputs.branches, 'develop')
+        with:
+          ref: develop
+          path: develop
+          persist-credentials: false
+
+      - name: Check for module updates
+        run: |
+          branches="${{ steps.branches.outputs.branches }}"
+
+          # Set up Git
+          git config --global user.name "boost-commitbot"
+          git config --global user.email "boost-commitbot@example.com"
+
+          # Update each branch
+          for branch in $branches; do
+            cd $branch
+            module_paths=$(git config --file .gitmodules --get-regexp '^submodule\..*\.path$')
+            while IFS=' ' read -r key path; do
+              submodule_name=$(echo "$key" | awk -F '.' '{print $2}')
+              submodule_path=$(echo "$path")
+              url=$(git config --file .gitmodules --get-regexp "^submodule\.$submodule_name\.url$" | awk '{print $2}')
+              if [[ ! "$url" =~ ^https:// ]]; then
+                  basicreponame=$(basename $url)
+                  url=${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY_OWNER}/${basicreponame}
+              fi
+              hash=$(git ls-remote "$url" "refs/heads/$branch" | cut -f 1)
+              hash="${hash#"${hash%%[![:space:]]*}"}"
+              hash="${hash%"${hash##*[![:space:]]}"}"
+              commit_id="${hash:0:8}"
+              previous_hash=$(git ls-tree HEAD "$submodule_path" | awk '{print $3}')
+              previous_hash="${previous_hash#"${previous_hash%%[![:space:]]*}"}"
+              previous_hash="${previous_hash%"${previous_hash##*[![:space:]]}"}"
+              previous_commit_id="${previous_hash:0:8}"
+              if [ "$hash" == "$previous_hash" ]; then
+                  echo "$submodule_name ($commit_id): OK"
+              else
+                  echo "$submodule_name: $previous_commit_id -> $commit_id"
+                  set -x
+                  set +e
+                  git submodule update --init "$submodule_path"
+                  git submodule update --remote "$submodule_path"
+                  git add "$submodule_path"
+                  git commit -m "Update $submodule_name from $branch"
+                  set -e
+                  set +x
+              fi
+            done <<< "$module_paths"
+            cd ..
+          done
+
+      - name: Push changes from master
+        uses: ad-m/github-push-action@v0.8.0
+        if: contains(steps.branches.outputs.branches, 'master')
+        with:
+          # github_token: ${{ secrets.GITHUB_TOKEN }}
+          github_token: ${{ secrets.CI_PAT }}
+          branch: master
+          directory: master
+
+      - name: Push changes from develop
+        uses: ad-m/github-push-action@v0.8.0
+        if: contains(steps.branches.outputs.branches, 'develop')
+        with:
+          # github_token: ${{ secrets.GITHUB_TOKEN }}
+          github_token: ${{ secrets.CI_PAT }}
+          branch: develop
+          directory: develop

.github/workflows/release-cmake.yml

@@ -0,0 +1,149 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - boost-*
+
+jobs:
+  release-posix-cmake:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: ${{ github.ref_name }}
+          submodules: true
+
+      - name: Cleanup
+        shell: bash
+        run: |
+          find ${{ github.ref_name }} -name ".git" -prune -exec rm -rf {} +
+
+      - name: Create archives
+        run: |
+          tar -czf ${{ github.ref_name }}-cmake.tar.gz ${{ github.ref_name }}
+          sha256sum ${{ github.ref_name }}-cmake.tar.gz > ${{ github.ref_name }}-cmake.tar.gz.txt
+          tar -cJf ${{ github.ref_name }}-cmake.tar.xz ${{ github.ref_name }}
+          sha256sum ${{ github.ref_name }}-cmake.tar.xz > ${{ github.ref_name }}-cmake.tar.xz.txt
+
+      - uses: softprops/action-gh-release@v2
+        with:
+          files: |
+            ${{ github.ref_name }}-cmake.tar.gz
+            ${{ github.ref_name }}-cmake.tar.gz.txt
+            ${{ github.ref_name }}-cmake.tar.xz
+            ${{ github.ref_name }}-cmake.tar.xz.txt
+
+  release-windows-cmake:
+    runs-on: windows-latest
+
+    needs: release-posix-cmake
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: ${{ github.ref_name }}
+          submodules: true
+
+      - name: Cleanup
+        shell: bash
+        run: |
+          find ${{ github.ref_name }} -name ".git" -prune -exec rm -rf {} +
+
+      - name: Create archives
+        shell: cmd
+        run: |
+          7z a ${{ github.ref_name }}-cmake.zip ${{ github.ref_name }}
+          sha256sum ${{ github.ref_name }}-cmake.zip > ${{ github.ref_name }}-cmake.zip.txt
+          7z a ${{ github.ref_name }}-cmake.7z ${{ github.ref_name }}
+          sha256sum ${{ github.ref_name }}-cmake.7z > ${{ github.ref_name }}-cmake.7z.txt
+
+      - uses: softprops/action-gh-release@v2
+        with:
+          files: |
+            ${{ github.ref_name }}-cmake.zip
+            ${{ github.ref_name }}-cmake.zip.txt
+            ${{ github.ref_name }}-cmake.7z
+            ${{ github.ref_name }}-cmake.7z.txt
+
+  release-posix-b2-nodocs:
+    runs-on: ubuntu-latest
+
+    needs: release-windows-cmake
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: ${{ github.ref_name }}
+          submodules: true
+
+      - name: Cleanup
+        shell: bash
+        run: |
+          find ${{ github.ref_name }} -name ".git" -prune -exec rm -rf {} +
+
+      - name: Move headers, remove docs
+        shell: bash
+        run: |
+          cd ${{ github.ref_name }}
+          cp -r libs/*/include/boost libs/numeric/*/include/boost .
+          rm -rf libs/*/include libs/numeric/*/include
+          rm -rf libs/*/doc libs/numeric/*/doc
+          rm -f CMakeLists.txt
+
+      - name: Create archives
+        run: |
+          tar -czf ${{ github.ref_name }}-b2-nodocs.tar.gz ${{ github.ref_name }}
+          sha256sum ${{ github.ref_name }}-b2-nodocs.tar.gz > ${{ github.ref_name }}-b2-nodocs.tar.gz.txt
+          tar -cJf ${{ github.ref_name }}-b2-nodocs.tar.xz ${{ github.ref_name }}
+          sha256sum ${{ github.ref_name }}-b2-nodocs.tar.xz > ${{ github.ref_name }}-b2-nodocs.tar.xz.txt
+
+      - uses: softprops/action-gh-release@v2
+        with:
+          files: |
+            ${{ github.ref_name }}-b2-nodocs.tar.gz
+            ${{ github.ref_name }}-b2-nodocs.tar.gz.txt
+            ${{ github.ref_name }}-b2-nodocs.tar.xz
+            ${{ github.ref_name }}-b2-nodocs.tar.xz.txt
+
+  release-windows-b2-nodocs:
+    runs-on: windows-latest
+
+    needs: release-posix-b2-nodocs
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: ${{ github.ref_name }}
+          submodules: true
+
+      - name: Cleanup
+        shell: bash
+        run: |
+          find ${{ github.ref_name }} -name ".git" -prune -exec rm -rf {} +
+
+      - name: Move headers, remove docs
+        shell: bash
+        run: |
+          cd ${{ github.ref_name }}
+          cp -r libs/*/include/boost libs/numeric/*/include/boost .
+          rm -rf libs/*/include libs/numeric/*/include
+          rm -rf libs/*/doc libs/numeric/*/doc
+          rm -f CMakeLists.txt
+
+      - name: Create archives
+        shell: cmd
+        run: |
+          7z a ${{ github.ref_name }}-b2-nodocs.zip ${{ github.ref_name }}
+          sha256sum ${{ github.ref_name }}-b2-nodocs.zip > ${{ github.ref_name }}-b2-nodocs.zip.txt
+          7z a ${{ github.ref_name }}-b2-nodocs.7z ${{ github.ref_name }}
+          sha256sum ${{ github.ref_name }}-b2-nodocs.7z > ${{ github.ref_name }}-b2-nodocs.7z.txt
+
+      - uses: softprops/action-gh-release@v2
+        with:
+          files: |
+            ${{ github.ref_name }}-b2-nodocs.zip
+            ${{ github.ref_name }}-b2-nodocs.zip.txt
+            ${{ github.ref_name }}-b2-nodocs.7z
+            ${{ github.ref_name }}-b2-nodocs.7z.txt

.github/workflows/release.yml

@@ -1,60 +0,0 @@
-name: Release
-
-on:
-  push:
-    tags:
-      - boost-*
-
-jobs:
-  release-posix:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          path: ${{ github.ref_name }}
-          submodules: true
-
-      - name: Cleanup
-        shell: bash
-        run: |
-          find ${{ github.ref_name }} -name ".git" -prune -exec rm -rf {} +
-
-      - name: Create archives
-        run: |
-          tar -czf ${{ github.ref_name }}.tar.gz ${{ github.ref_name }}
-          tar -cJf ${{ github.ref_name }}.tar.xz ${{ github.ref_name }}
-
-      - uses: softprops/action-gh-release@v1
-        with:
-          files: |
-            ${{ github.ref_name }}.tar.gz
-            ${{ github.ref_name }}.tar.xz
-
-  release-windows:
-    runs-on: windows-latest
-
-    needs: release-posix
-
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          path: ${{ github.ref_name }}
-          submodules: true
-
-      - name: Cleanup
-        shell: bash
-        run: |
-          find ${{ github.ref_name }} -name ".git" -prune -exec rm -rf {} +
-
-      - name: Create archives
-        shell: cmd
-        run: |
-          7z a ${{ github.ref_name }}.zip ${{ github.ref_name }}
-          7z a ${{ github.ref_name }}.7z ${{ github.ref_name }}
-
-      - uses: softprops/action-gh-release@v1
-        with:
-          files: |
-            ${{ github.ref_name }}.zip
-            ${{ github.ref_name }}.7z

.gitmodules

@@ -353,11 +353,6 @@
 	url = ../type_traits.git
 	fetchRecurseSubmodules = on-demand
 	branch = .
-[submodule "compatibility"]
-	path = libs/compatibility
-	url = ../compatibility.git
-	fetchRecurseSubmodules = on-demand
-	branch = .
 [submodule "bind"]
 	path = libs/bind
 	url = ../bind.git
@@ -808,3 +803,43 @@
 	url = ../compat.git
 	fetchRecurseSubmodules = on-demand
 	branch = .
+[submodule "redis"]
+	path = libs/redis
+	url = ../redis.git
+	fetchRecurseSubmodules = on-demand
+	branch = .
+[submodule "cobalt"]
+	path = libs/cobalt
+	url = ../cobalt.git
+	fetchRecurseSubmodules = on-demand
+	branch = .
+[submodule "charconv"]
+	path = libs/charconv
+	url = ../charconv.git
+	fetchRecurseSubmodules = on-demand
+	branch = .
+[submodule "scope"]
+	path = libs/scope
+	url = ../scope.git
+	fetchRecurseSubmodules = on-demand
+	branch = .
+[submodule "boostlook"]
+	path = tools/boostlook
+	url = ../boostlook.git
+	fetchRecurseSubmodules = on-demand
+	branch = .
+[submodule "parser"]
+	path = libs/parser
+	url = ../parser.git
+	fetchRecurseSubmodules = on-demand
+	branch = .
+[submodule "mqtt5"]
+	path = libs/mqtt5
+	url = ../mqtt5.git
+	fetchRecurseSubmodules = on-demand
+	branch = .
+[submodule "hash2"]
+	path = libs/hash2
+	url = ../hash2.git
+	fetchRecurseSubmodules = on-demand
+	branch = .

CMakeLists.txt

@@ -10,7 +10,7 @@ if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR AND NOT CMAKE_BUILD_TYPE A
   set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
 endif()
 
-project(Boost VERSION 1.83.0 LANGUAGES CXX)
+project(Boost VERSION 1.88.0 LANGUAGES CXX)
 
 set(BOOST_SUPERPROJECT_VERSION ${PROJECT_VERSION})
 set(BOOST_SUPERPROJECT_SOURCE_DIR ${PROJECT_SOURCE_DIR})

Jamroot

@@ -1,6 +1,6 @@
 # Copyright Vladimir Prus 2002-2006.
 # Copyright Dave Abrahams 2005-2006.
-# Copyright Rene Rivera 2005-2007.
+# Copyright René Ferdinand Rivera Morell 2005-2024.
 # Copyright Douglas Gregor 2005.
 #
 # Distributed under the Boost Software License, Version 1.0.
@@ -122,6 +122,8 @@
 #                           runtime.
 #
 
+require-b2 5.1.0 ;
+
 # TODO:
 #  - handle boost version
 #  - handle python options such as pydebug
@@ -140,15 +142,18 @@ import "class" : new ;
 import property-set ;
 import threadapi-feature ;
 import option ;
+import property ;
+import project ;
 # Backslash because of `bcp --namespace`
 import tools/boost\_install/boost-install ;
 
 path-constant BOOST_ROOT : . ;
-constant BOOST_VERSION : 1.83.0 ;
+constant BOOST_VERSION : 1.88.0 ;
 constant BOOST_JAMROOT_MODULE : $(__name__) ;
 
 # Allow subprojects to simply `import config : requires ;` to get access to the requires rule
-modules.poke : BOOST_BUILD_PATH : $(BOOST_ROOT)/libs/config/checks [ modules.peek : BOOST_BUILD_PATH ] ;
+import-search $(BOOST_ROOT)/libs/config/checks ;
+import-search $(BOOST_ROOT)/libs/predef/tools/check ;
 
 boostcpp.set-version $(BOOST_VERSION) ;
 
@@ -168,11 +173,10 @@ if $(all-headers)
     constant BOOST_MODULARLAYOUT : $(all-headers) ;
 }
 
-project boost
+project /boost
     : requirements <include>.
 
-      [ boostcpp.architecture ]
-      [ boostcpp.address-model ]
+      [ boostcpp.platform ]
 
       # Disable auto-linking for all targets here, primarily because it caused
       # troubles with V2.
@@ -180,6 +184,7 @@ project boost
       # Used to encode variant in target name. See the 'tag' rule below.
       <tag>@$(__name__).tag
       <conditional>@handle-static-runtime
+      <conditional>@clang-darwin-cxxstd-11
       # Comeau does not support shared lib
       <toolset>como:<link>static
       <toolset>como-linux:<define>_GNU_SOURCE=1
@@ -193,6 +198,13 @@ project boost
     : build-dir bin.v2
     ;
 
+# General, top-level, modular project searching. Also include tools in the
+# project search.
+project-search /boost : libs tools ;
+# Temporary custom project searching to account for special library paths.
+project-search /boost : libs/numeric ;
+project-search /boost/numeric_conversion : libs/numeric/conversion ;
+
 # This rule is called by Boost.Build to determine the name of target. We use it
 # to encode the build variant, compiler name and boost version in the target
 # name.
@@ -226,40 +238,93 @@ rule handle-static-runtime ( properties * )
     }
 }
 
-all-libraries = [ MATCH .*libs/(.*)/build/.* : [ glob libs/*/build/Jamfile.v2 ]
-    [ glob libs/*/build/Jamfile ] ] ;
+rule clang-darwin-cxxstd-11 ( properties * )
+{
+    # AppleClang defaults to C++03
 
-all-libraries = [ sequence.unique $(all-libraries) ] ;
+    local result = [ property.select <cxxstd> : $(properties) ] ;
+
+    if <toolset-clang:platform>darwin in $(properties)
+    {
+        result ?= <cxxstd>11 ;
+    }
+
+    return $(result) ;
+}
+
+# All libraries.
+local all-libraries
+    = [ MATCH .*libs/(.*)/meta/libraries.json : [ glob libs/*/meta/libraries.json ] ] ;
+
+# Find all the libraries that have something to build (the old way).
+local all-libraries-to-build
+    = [ MATCH .*libs/(.*)/build/.* : [ glob libs/*/build/Jamfile.v2 ]
+        [ glob libs/*/build/Jamfile ] ] ;
+all-libraries-to-build = [ sequence.unique $(all-libraries-to-build) ] ;
 # The function_types library has a Jamfile, but it's used for maintenance
 # purposes, there's no library to build and install.
-all-libraries = [ set.difference $(all-libraries) : function_types ] ;
+all-libraries-to-build = [ set.difference $(all-libraries-to-build) : function_types ] ;
+
+# Find all the libraries that have a library-root build declaration (modular way).
+local all-libraries-modular-build
+    = [ MATCH .*libs/(.*)/build.jam : [ glob libs/*/build.jam ] ] ;
+
+# Modular and not are mutually exclusive as they have different lib targets.
+all-libraries-to-build = [ set.difference $(all-libraries-to-build) : $(all-libraries-modular-build) ] ;
+
+# The header only libraries that are not of the new modular form. For which we
+# will create synthetic projects and targets to simulate the new modular form.
+local all-libraries-to-declare
+    = [ set.difference $(all-libraries)
+        : $(all-libraries-modular-build) $(all-libraries-to-build) ] ;
+if ! [ glob libs/numeric/conversion/build.jam ]
+{
+    all-libraries-to-declare += numeric_conversion ;
+}
+if ! [ glob libs/numeric/interval/build.jam ]
+{
+    all-libraries-to-declare += interval ;
+}
+if ! [ glob libs/numeric/odeint/build.jam ]
+{
+    all-libraries-to-declare += odeint ;
+}
+if ! [ glob libs/numeric/ublas/build.jam ]
+{
+    all-libraries-to-declare += ublas ;
+}
+all-libraries-to-declare = [ SORT $(all-libraries-to-declare) ] ;
+
+# ECHO "INFO: Build Libraries:" [ SORT $(all-libraries-to-build) ] ;
+# ECHO "INFO: Modular Libraries:" [ SORT $(all-libraries-modular-build) ] ;
+# ECHO "INFO: Declared Libraries:" [ SORT $(all-libraries-to-declare) ] ;
+# EXIT : 0 ;
 
 # Setup convenient aliases for all libraries.
 
-local rule explicit-alias ( id : targets + )
-{
-    alias $(id) : $(targets) ;
-    explicit $(id) ;
-}
-
 # First, the complicated libraries: where the target name in Jamfile is
 # different from its directory name.
-explicit-alias prg_exec_monitor : libs/test/build//boost_prg_exec_monitor ;
-explicit-alias test_exec_monitor : libs/test/build//boost_test_exec_monitor ;
-explicit-alias unit_test_framework : libs/test/build//boost_unit_test_framework ;
-explicit-alias bgl-vis : libs/graps/build//bgl-vis ;
-explicit-alias serialization : libs/serialization/build//boost_serialization ;
-explicit-alias wserialization : libs/serialization/build//boost_wserialization ;
-for local l in $(all-libraries)
+explicit
+    [ alias prg_exec_monitor : libs/test/build//boost_prg_exec_monitor ]
+    [ alias test_exec_monitor : libs/test/build//boost_test_exec_monitor ]
+    [ alias unit_test_framework : libs/test/build//boost_unit_test_framework ]
+    [ alias serialization : libs/serialization/build//boost_serialization ]
+    [ alias wserialization : libs/serialization/build//boost_wserialization ]
+    ;
+for local l in $(all-libraries-to-build)
 {
     if ! $(l) in test graph serialization headers
     {
-        explicit-alias $(l) : libs/$(l)/build//boost_$(l) ;
+        explicit [ alias $(l) : libs/$(l)/build//boost_$(l) ] ;
+    }
+}
+for local l in $(all-libraries-modular-build)
+{
+    if ! $(l) in test graph serialization headers
+    {
+        explicit [ alias $(l) : /boost/$(l)//boost_$(l) ] ;
     }
 }
-
-# Log has an additional target
-explicit-alias log_setup : libs/log/build//boost_log_setup ;
 
 rule do-nothing { }
 
@@ -279,7 +344,7 @@ generate headers : $(all-headers)-headers : <generating-rule>@generate-alias <ac
 explicit headers ;
 
 # Make project ids of all libraries known.
-for local l in $(all-libraries)
+for local l in $(all-libraries-to-build)
 {
     use-project /boost/$(l) : libs/$(l)/build ;
 }
@@ -291,7 +356,7 @@ if [ path.exists $(BOOST_ROOT)/tools/inspect/build ]
 
 if [ path.exists $(BOOST_ROOT)/libs/wave/tool/build ]
 {
-    use-project /boost/libs/wave/tool : libs/wave/tool/build ;
+    use-project /boost/libs/wave/tool : $(BOOST_ROOT)/libs/wave/tool/build ;
 }
 
 # Make the boost-install rule visible in subprojects
@@ -326,4 +391,95 @@ rule boost-lib ( name : sources * : requirements * : default-build * : usage-req
 
 # Declare special top-level targets that build and install the desired variants
 # of the libraries.
-boostcpp.declare-targets $(all-libraries) ;
+boostcpp.declare-targets $(all-libraries-to-build) $(all-libraries-modular-build) ;
+
+# Declare a Boost library and run related declaration rules. This should be
+# called from the libroot/build.jam to define the components of a Boost lib.
+# The first arg is the base ID of the library. Each subsequence arg is a
+# Boost (boost-x) declaration rule to call with arguments.
+#
+# For example:
+#
+# call-if : boost-library serialization
+#   : install boost_serialization boost_wserialization ;
+#
+rule boost-library ( id ? : options * : * )
+{
+    # ECHO "INFO: Declare Boost library:" $(id) ;
+    local called-boost-install ;
+    for n in 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
+    {
+        local option = $($(n)) ;
+        if $(option)
+        {
+            call-if : boost-$(option[1]) $(option[2-]) ;
+            if $(option[1]) = install
+            {
+                called-boost-install = true ;
+            }
+        }
+    }
+    if ! $(called-boost-install)
+    {
+        # If the library didn't indicate an install build target it's likely
+        # header only. We should declare empty install targets to allow for
+        # generic handling.
+        boost-install.boost-install ;
+    }
+}
+
+# Declare projects and targets for all placeholder, header only, not yet
+# modular libraries.
+#
+# NOTE: This has to be after the boost-* rule definitions to ensure that those
+# are available for import into the new projects.
+local location = [ project.attribute $(__name__) location ] ;
+for local lib in $(all-libraries-to-declare)
+{
+    local lib-path
+        = [ path.join $(location) libs $(lib) ] ;
+    if $(lib) = numeric_conversion
+    {
+        lib-path = [ path.join $(location) libs/numeric/conversion ] ;
+    }
+    else if $(lib) in interval odeint ublas
+    {
+        lib-path = [ path.join $(location) libs/numeric/$(lib) ] ;
+    }
+    local lib-module
+        = [ project.load $(lib-path) : synthesize ] ;
+    modules.poke $(lib-module) : BOOST_LIB_PROJECT : /boost/$(lib) ;
+    modules.poke $(lib-module) : BOOST_LIB_TARGET : boost_$(lib) ;
+    project.push-current [ project.target $(lib-module) ] ;
+    module $(lib-module)
+    {
+        project $(BOOST_LIB_PROJECT)
+            : requirements
+                <implicit-dependency>/boost//headers
+            ;
+        alias $(BOOST_LIB_TARGET) ;
+    }
+    project.pop-current ;
+}
+
+# Backslash because of `bcp --namespace`
+
+if ! [ project.search /boost/tools/boost\_install ]
+{
+    use-project /boost/tools/boost\_install : tools/boost\_install ;
+}
+
+# Ensure "modular" libraries' projects are loaded before build request is
+# calculated. This is necessary for subprojects that define custom features
+# to be set by users on command line.
+# This part should stay at the bottom of the file, because subprojects may rely
+# on rules or constants from it.
+for local l in $(all-libraries-modular-build)
+{
+    # project.find returns the module for the project, which ensures that the
+    # project is loaded. The convoluted way the rule is invoked is due to the
+    # fact that project.find can only be called from a project target instance.
+    modules.call-in [ project.target $(__name__) ]
+        : project.find /boost/$(l)
+        : $(location) ;
+}

README.md

@@ -5,7 +5,7 @@ The Boost project provides free peer-reviewed portable C++ source libraries.
 We emphasize libraries that work well with the C++ Standard Library. Boost
 libraries are intended to be widely useful, and usable across a broad spectrum
 of applications. The Boost license encourages both commercial and non-commercial use
-and does not require attribution for binary use. 
+and does not require attribution for binary use.
 
 The project website is www.boost.org, where you can obtain more information and
 [download](https://www.boost.org/users/download/) the current release.

boostcpp.jam

@@ -185,7 +185,7 @@ else
 
 rule tag ( name : type ? : property-set )
 {
-    if $(type) in STATIC_LIB SHARED_LIB IMPORT_LIB
+    if $(type:E=x) in STATIC_LIB SHARED_LIB IMPORT_LIB
     {
         local args = $(.format-name-args) ;
         if $(layout) = versioned
@@ -263,11 +263,27 @@ rule python-tag ( name : type ? : property-set )
 rule declare_install_and_stage_proper_targets ( libraries * )
 {
     local p = [ project.current ] ;
+    local install-targets ;
+    local stage-targets ;
+    for local library in $(libraries)
+    {
+        local mp = [ project.search /boost/$(library) ] ;
+        if $(mp)
+        {
+            install-targets += /boost/$(library)//install ;
+            stage-targets += /boost/$(library)//stage ;
+        }
+        else
+        {
+            install-targets += libs/$(library)/build//install ;
+            stage-targets += libs/$(library)/build//stage ;
+        }
+    }
 
-    alias install-proper : libs/$(libraries)/build//install ;
+    alias install-proper : $(install-targets) ;
     $(p).mark-target-as-explicit install-proper ;
 
-    alias stage-proper : libs/$(libraries)/build//stage ;
+    alias stage-proper : $(stage-targets) ;
     $(p).mark-target-as-explicit stage-proper ;
 }
 
@@ -606,49 +622,38 @@ rule toolset-properties ( properties * )
     return [ property.select <target-os> <toolset> $(toolset-version-property) : $(properties) ] ;
 }
 
-feature.feature deduced-address-model : 32 64 : propagated optional composite hidden ;
-feature.compose <deduced-address-model>32 : <address-model>32 ;
-feature.compose <deduced-address-model>64 : <address-model>64 ;
-
-rule deduce-address-model ( properties * )
+.deducible-architectures = arm loongarch mips power riscv s390x sparc x86 combined ;
+feature.feature x-deduced-platform
+    : $(.deducible-architectures)_32 $(.deducible-architectures)_64
+    : composite implicit optional propagated ;
+for a in $(.deducible-architectures)
 {
-    local result ;
-    local filtered = [ toolset-properties $(properties) ] ;
-    local names = 32 64 ;
-    local idx = [ configure.find-builds "default address-model" : $(filtered)
-        : /boost/architecture//32 "32-bit"
-        : /boost/architecture//64 "64-bit" ] ;
-    result = $(names[$(idx)]) ;
-
-    if $(result)
-    {
-        # Normally, returning composite feature here is equivalent to forcing
-        # constituent properties as well. But we only want to indicate toolset
-        # deduced default, so also pick whatever address-model is explicitly
-        # specified, if any.
-        result = <deduced-address-model>$(result) [ property.select <address-model> : $(properties) ] ;
-    }
-    return $(result) ;
-}
-
-rule address-model ( )
-{
-    return <conditional>@boostcpp.deduce-address-model ;
-}
-
-local deducable-architectures = arm loongarch mips power riscv s390x sparc x86 combined ;
-feature.feature deduced-architecture : $(deducable-architectures) : propagated optional composite hidden ;
-for a in $(deducable-architectures)
-{
-    feature.compose <deduced-architecture>$(a) : <architecture>$(a) ;
+    feature.compose <x-deduced-platform>$(a)_32 : <architecture>$(a) <address-model>32 ;
+    feature.compose <x-deduced-platform>$(a)_64 : <architecture>$(a) <address-model>64 ;
 }
 
 rule deduce-architecture ( properties * )
 {
-    local result ;
+    local deduced-pl = [ property.select <x-deduced-platform> : $(properties) ] ;
+    if $(deduced-pl)
+    {
+        return $(deduced-pl) ;
+    }
+
     local filtered = [ toolset-properties $(properties) ] ;
-    local names = arm loongarch mips power riscv s390x sparc x86 combined ;
-    local idx = [ configure.find-builds "default architecture" : $(filtered)
+
+    local names = 32 64 ;
+    local idx = [ configure.find-builds "default address-model" : $(filtered)
+        : /boost/architecture//32 "32-bit"
+        : /boost/architecture//64 "64-bit" ] ;
+    local deduced-am = $(names[$(idx)]) ;
+    if ! $(deduced-am)
+    {
+        return ;
+    }
+
+    names = $(.deducible-architectures) ;
+    idx = [ configure.find-builds "default architecture" : $(filtered)
         : /boost/architecture//arm
         : /boost/architecture//loongarch
         : /boost/architecture//mips
@@ -658,17 +663,35 @@ rule deduce-architecture ( properties * )
         : /boost/architecture//sparc
         : /boost/architecture//x86
         : /boost/architecture//combined ] ;
-    result = $(names[$(idx)]) ;
-
-    if $(result)
+    local deduced-arch = $(names[$(idx)]) ;
+    if ! $(deduced-arch)
     {
-        # See comment in deduce-address-model.
-        result = <deduced-architecture>$(result) [ property.select <architecture> : $(properties) ] ;
+        return ;
     }
-    return $(result) ;
+
+    local requested-am = [ property.select <address-model> : $(properties) ] ;
+    requested-am ?= <address-model>$(deduced-am) ;
+
+    local requested-arch = [ property.select <architecture> : $(properties) ] ;
+    requested-arch ?= <architecture>$(deduced-arch) ;
+
+    deduced-pl = $(requested-arch:G=<x-deduced-platform>)_$(requested-am:G=) ;
+
+    if ! $(deduced-pl:G=) in [ feature.values <x-deduced-platform> ]
+    {
+        deduced-pl = ;
+    }
+    return $(deduced-pl) ;
 }
 
-rule architecture ( )
+
+rule deduce-address-model ( properties * )
 {
-    return <conditional>@boostcpp.deduce-architecture ;
+    # this rule is a noop and exists for legacy reasons
+}
+
+rule platform ( )
+{
+    return <conditional>@boostcpp.deduce-architecture
+        <conditional>@boostcpp.deduce-address-model ;
 }

doc/Jamfile.v2

@@ -198,7 +198,7 @@ explicit libraries ;
 
 xinclude tools :
     ../tools/quickbook/doc//quickbook
-    ../tools/boostbook/doc/boostbook.xml
+    ../tools/boostbook/doc//boostbook
     ;
 explicit tools ;
 

doc/html/boostbook.html

@@ -7,10 +7,10 @@
       (See accompanying file LICENSE_1_0.txt or copy at
       http://www.boost.org/LICENSE_1_0.txt) -->
     <title>Redirect to generated documentation</title>
-    <meta http-equiv="refresh" content="0; URL=http://www.boost.org/doc/libs/master/doc/html/boostbook.html">
+    <meta http-equiv="refresh" content="0; URL=../../tools/boostbook/index.html">
   </head>
   <body>
     Automatic redirection failed, please go to
-    <a href="http://www.boost.org/doc/libs/master/doc/html/boostbook.html">http://www.boost.org/doc/libs/master/doc/html/boostbook.html</a>
+    <a href="../../tools/boostbook/index.html">../../tools/boostbook/index.html</a>
   </body>
 </html>

doc/src/minimal.css

@@ -1,6 +1,6 @@
 /*
 
-  © Copyright Beman Dawes, 2007
+  Copyright (c) 2007 Beman Dawes
 
   Distributed under the Boost Software License, Version 1.0.
   See www.boost.org/LICENSE_1_0.txt

libs/accumulators

@@ -1 +1 @@
-Subproject commit bf4b6a3b6216932fcd982f4084f288142d17fb7c
+Subproject commit 9d9e5dae2202660f57e2dc91efb620aa001525b3

libs/any

@@ -1 +1 @@
-Subproject commit 9bbc30237843153feca18b3577876dfe150f274d
+Subproject commit 8292e1831811488bee57feee690b818b0821cddd

libs/array

@@ -1 +1 @@
-Subproject commit 868af27d82d4f83566c072615ec8eabea4266dc0
+Subproject commit e988ef9c4a7d64be2850dc8de18b6461e094d4ae

libs/asio

@@ -1 +1 @@
-Subproject commit f2fbbd824c1fafa67c1b9c7ee6e4d2649b343a46
+Subproject commit 8ce699c7d8c10a7d3e6187bc98244d1d2f2958c8

libs/assert

@@ -1 +1 @@
-Subproject commit 02256c84fd0cd58a139d9dc1b25b5019ca976ada
+Subproject commit 5dcb2af5213ae132b7531e45e7f93258cc33ffd8

libs/assign

@@ -1 +1 @@
-Subproject commit ababd47970e8a5fa1bebc8ccad526c4f25bd867a
+Subproject commit b452220f5de0f6205433c08cee63742102a424d2

libs/atomic

@@ -1 +1 @@
-Subproject commit 001c1d96a80524e1c2d10b2ad3b8fedb0620fa05
+Subproject commit 199906f4e1789d8d182d478842ea4df9543d5fea

libs/beast

@@ -1 +1 @@
-Subproject commit c316c6bd3571991aeac65f0fc35fca9067bc7906
+Subproject commit 1d8dfae490125bd63efedfa7a3ecf20e8e9b54a5

libs/bimap

@@ -1 +1 @@
-Subproject commit e5c2657a9e2d6184622ad4ccd1373e6c60a7efca
+Subproject commit f64de6d045bf6aa3f39a672604bcccbc97291525

libs/bind

@@ -1 +1 @@
-Subproject commit 55d037093bc715d3cf5682f6f84c3dc3456a3b97
+Subproject commit a541a8d5c16920e1836d09299915890d687efe36

libs/charconv

@@ -0,0 +1 @@
+Subproject commit 22a7e222c9763b19714a05aa67fefd70888df70f

libs/chrono

@@ -1 +1 @@
-Subproject commit 8551ec1c5373621e5228a06cf0aacbb5c261560f
+Subproject commit ef510872039483dc66b7b2263c43c273a9aaecd6

libs/cobalt

@@ -0,0 +1 @@
+Subproject commit 61cf72a85be54ded1d81211baaf61dc52ec6bed2

libs/compat

@@ -1 +1 @@
-Subproject commit f5da663cbc893fdfb2594a669243a6f1faf5719a
+Subproject commit 61b464c3eec8a2d3e4aae1275b5844a411caedae

libs/compatibility

@@ -1 +0,0 @@
-Subproject commit 47ce71af6b018764c9ba74c0bfcb4f3151b81aa7

libs/compute

@@ -1 +1 @@
-Subproject commit 36350b7de849300bd3d72a05d8bf890ca405a014
+Subproject commit cf7907574d6159cd43e6cf687a7b656278c61dd0

libs/concept_check

@@ -1 +1 @@
-Subproject commit 37c9bddf0bdefaaae0ca5852c1a153d9fc43f278
+Subproject commit 0ef7f2b5daeaa125a53d98affba8f40091d24b17

libs/config

@@ -1 +1 @@
-Subproject commit a1cf5d531405e62927b0257b5cbecc66a545b508
+Subproject commit 4e9d5a3a95418d9ca623d38f5c772d485c2c2baf

libs/container

@@ -1 +1 @@
-Subproject commit 22357b34b7a5ad94a307fb0df69ff5a1f05f0c83
+Subproject commit 866fd30df1ab723e2104e3de504f4a8c116f2c41

libs/container_hash

@@ -1 +1 @@
-Subproject commit 226eb066e949adbf37b220e993d64ecefeeaae99
+Subproject commit b8179488b20eb1373bdbf5c7fcca963f072512df

libs/context

@@ -1 +1 @@
-Subproject commit 65b179db288d13da21447e4f430400338ce08ca2
+Subproject commit afd2ce33722e223d75723f3b44dc9fa94302e764

libs/conversion

@@ -1 +1 @@
-Subproject commit a1104f580c7f2a2fde4a1c341eeb110b8f43496e
+Subproject commit 9d64c899df6fc62ea35523a8423ad0d7ac6c6078

libs/convert

@@ -1 +1 @@
-Subproject commit 1dd2ca23cb74991d420ea85b9b764f0ac76367c1
+Subproject commit 0dd7a76b1c051c048b4991b7aa9c8b5aeb5776ee

libs/core

@@ -1 +1 @@
-Subproject commit c7134904e27237dbbb81ba28f0f23fc365b079dd
+Subproject commit 1e1ccb491edeb3a8580b6998c894c07968d4bbb5

libs/coroutine

@@ -1 +1 @@
-Subproject commit 1e1347c0b1910b9310ec1719edad8b0bf2fd03c8
+Subproject commit 8b09bf7d0e8a13d1ef59aaff02a84d42acb034f3

libs/coroutine2

@@ -1 +1 @@
-Subproject commit d7e1c1c4abcf8c1e90097279e485edea0b253a80
+Subproject commit dbbf042e0a9081b4119d491b788ae0fe7c03192a

libs/crc

@@ -1 +1 @@
-Subproject commit 96daae9fcdf965298077ed12a9304ea24713bb40
+Subproject commit 75146a958410c789381a4609166c754d35548e2d

libs/describe

@@ -1 +1 @@
-Subproject commit a0eafb08100eb15a57b6dae6d270c0012a56aa21
+Subproject commit ddff876eeaab5f08844c4c8e88d1679f86ae8210

libs/detail

@@ -1 +1 @@
-Subproject commit b75c261492862448cdc5e1c0d5900203497122d6
+Subproject commit a54b2619f8f75861836114d02a3fc70c7c9b3474

libs/dll

@@ -1 +1 @@
-Subproject commit ca02dd46e3c2c81c516d32cf91ef1bac1e662bbb
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libs/maintainers.txt

@@ -24,15 +24,17 @@ beast                 Vinnie Falco <vinnie.falco@gmail.com>
 bimap                 Matias Capeletto <matias.capeletto -at- gmail.com>
 bind                  Peter Dimov <pdimov -at- gmail.com>
 callable_traits       Barrett Adair <barrettellisadair -at- gmail.com>
+charconv              Matt Borland <matt -at- mattborland.com>
 chrono                Vicente J. Botet Escriba <vicente.botet -at- wanadoo.fr>
 chrono/stopwatch      Vicente J. Botet Escriba <vicente.botet -at- wanadoo.fr>
 circular_buffer       Jan Gaspar <jano_gaspar -at- yahoo.com>
+cobalt                Klemens Morgenstern <klemens -dot- d -dot- morgenstern -at- gmail.com>
 compat                Peter Dimov <pdimov -at- gmail.com>
 compute               Kyle Lutz <kyle.r.lutz -at- gmail.com>
 concept_check         Jeremy Siek <jeremy.siek -at- gmail.com>
 config                John Maddock <john -at- johnmaddock.co.uk>
 container             Ion Gaztanaga <igaztanaga -at- gmail.com>
-container_hash        Daniel James <dnljms -at- gmail.com>
+container_hash        Peter Dimov <pdimov -at- gmail.com>
 context               Oliver Kowalke <oliver.kowalke -at- gmail.com>
 contract              Lorenzo Caminiti <lorcaminiti -at- gmail.com>
 conversion            Antony Polukhin <antoshkka -at- gmail.com>
@@ -66,7 +68,7 @@ geometry              Barend Gehrels <barend -at- xs4all.nl>, Bruno Lalande <bru
 geometry/extensions   Barend Gehrels <barend -at- xs4all.nl>, Bruno Lalande <bruno.lalande -at- gmail.com>, Mateusz Loskot <mateusz -at- loskot.net>, Adam Wulkiewicz <adam.wulkiewicz -at- gmail.com>
 geometry/index        Barend Gehrels <barend -at- xs4all.nl>, Bruno Lalande <bruno.lalande -at- gmail.com>, Mateusz Loskot <mateusz -at- loskot.net>, Adam Wulkiewicz <adam.wulkiewicz -at- gmail.com>, Vissarion Fisikopoulos <fisikop -at- gmail.com>
 gil                   Stefan Seefeld <stefan -at- seefeld.name>, Mateusz Loskot <mateusz -at- loskot.net>, Pranam Lashkari <plashkari628 -at- gmail.com>
-graph                 K. Noel Belcourt <kbelco -at- sandia.gov>
+graph                 Jeremy W. Murphy <jeremy.william.murphy -at- gmail.com>
 graph_parallel        K. Noel Belcourt <kbelco -at- sandia.gov>
 hana                  Louis Dionne <ldionne.2 -at- gmail.com>
 heap                  Tim Blechmann <tim -at- klingt.org>
@@ -104,7 +106,7 @@ mysql                 Rubén Pérez <rubenperez038@gmail.com>
 nowide                Alexander Grund <alex -at- grundis.de>
 numeric/conversion    Fernando Cacciola <fernando_cacciola -at- ciudad.com.ar>, Brandon Kohn <blkohn -at- hotmail.com>
 numeric/interval      Sylvain Pion <Sylvain.Pion -at- sophia.inria.fr>, Herve Bronnimann <hbr -at- poly.edu>, Guillaume Melquiond <guillaume.melquiond -at- ens-lyon.fr>
-numeric/odeint        Karsten Ahnert <karsten.ahnert -at- gmx.de>, Mario Mulansky <mario.mulansky -at- gmx.net>
+numeric/odeint        Karsten Ahnert <karsten.ahnert -at- gmx.de>, Mario Mulansky <mario.mulansky -at- gmx.net>, Matt Borland <matt -at- mattborland.com>, Nick Thompson <nathompson7 -at- protonmail.com>
 numeric/ublas         David Bellot <david.bellot -at- gmail.com>, Stefan Seefeld <stefan -at- seefeld.name>
 operators             Daniel Frey <d.frey -at- gmx.de>
 optional              Fernando Cacciola <fernando_cacciola -at- ciudad.com.ar>, Andrzej Krzemienski <akrzemi1 -at- gmail.com>
@@ -127,12 +129,14 @@ proto                 Eric Niebler <eric -at- boostpro.com>
 ptr_container         Thorsten Ottosen <nesotto -at- cs.auc.dk>
 python                Stefan Seefeld <stefan -at- seefeld.name>
 qvm                   Emil Dotchevski <emil@revergestudios.com>
-random                Steven Watanabe <watanabesj -at- gmail.com>
+random                Steven Watanabe <watanabesj -at- gmail.com>, Matt Borland <matt -at- mattborland.com>
 range                 Neil Groves <neilgroves -at- googlemail.com>, Nathan Ridge <zeratul976 -at- hotmail.com>
 ratio                 Vicente J. Botet Escriba <vicente.botet -at- wanadoo.fr>
 rational              Jonathan Turkanis <turkanis -at- coderage.com>
+redis                 Marcelo Zimbres Silva <mzimbres@gmail.com>
 regex                 John Maddock <john -at- johnmaddock.co.uk>
 safe_numerics         Robert Ramey <ramey -at- rrsd.com>
+scope                 Andrey Semashev <andrey.semashev -at- gmail.com>
 scope_exit            Alexander Nasonov <alexander.nasonov -at- gmail.com>, Lorenzo Caminiti <lorcaminiti -at- gmail.com>
 serialization         Robert Ramey <ramey -at- rrsd.com>
 signals               Douglas Gregor <dgregor -at- cs.indiana.edu>
@@ -146,10 +150,10 @@ spirit/repository     Joel de Guzman <joel -at- boost-consulting.com>, Hartmut K
 stacktrace            Antony Polukhin <antoshkka -at- gmail.com>
 statechart            Andreas Huber <ahd6974-boostorg -at- yahoo.com>
 static_assert         John Maddock <john -at- johnmaddock.co.uk>
-static_string         Alan de Freitas <alandefreitas@gmail.com>, Vinnie Falco <vinnie.falco@gmail.com>
+static_string         Krystian Stasiowski <sdkrystian@gmail.com>, Alan de Freitas <alandefreitas@gmail.com>, Vinnie Falco <vinnie.falco@gmail.com>
 stl_interfaces        Zach Laine <whatwasthataddress -at- gmail.com>
 system                Peter Dimov <pdimov -at- gmail.com>
-test                  Gennadiy Rozental <rogeeff -at- gmail.com>, Raffi Enficiaud <raffi.enficiaud -at- free.fr>
+test                  Gennadiy Rozental <rogeeff -at- gmail.com>, Raffi Enficiaud <raffi.enficiaud -at- free.fr>, Matt Borland <matt -at- mattborland.com>
 thread                Vicente J. Botet Escriba <vicente.botet -at- wanadoo.fr>
 throw_exception       Emil Dotchevski <emil -at- revergestudios.com>, Peter Dimov <pdimov -at- gmail.com>
 timer                 Peter Dimov <pdimov -at- gmail.com>
@@ -162,7 +166,7 @@ type_index            Antony Polukhin <antoshkka -at- gmail.com>
 type_traits           John Maddock <john -at- johnmaddock.co.uk>
 typeof                Arkadiy Vertleyb <vertleyb -at- hotmail.com>, Peder Holt <peder.holt -at- gmail.com>
 units                 Jürgen Hunold <jhunold -at- gmx.eu>, Steven Watanabe <steven -at- providere-consulting.com>
-unordered             Daniel James <dnljms -at- gmail.com>
+unordered             Christian Mazakas <christian.mazakas -at- gmail.com>, Joaquín M López Muñoz <joaquin.lopezmunoz -at- gmail.com>
 url                   Vinnie Falco <vinnie.falco@gmail.com>, Alan de Freitas <alandefreitas@gmail.com>
 utility
 utility/enable_if     Jaakko Jarvi <jarvi -at- cs.tamu.edu>, Jeremiah Willcock <jewillco -at- osl.iu.edu>
@@ -170,6 +174,7 @@ utility/identity_type Lorenzo Caminiti <lorcaminiti -at- gmail.com>
 utility/ostream_string  Glen Fernandes <glenjofe -at- gmail.com>
 utility/result_of     Daniel Walker <daniel.j.walker -at- gmail.com>
 utility/string_ref    Marshall Clow <marshall -at- idio.com>
+utility/string_view   Marshall Clow <marshall -at- idio.com>
 utility/swap          Joseph Gauterin <joseph.gauterin -at- googlemail.com>
 uuid                  Andy Tompkins <atompkins -at- fastmail.fm>, James E. King III <jking -at- apache.org>
 variant               Antony Polukhin <antoshkka -at- gmail.com>, Eric Friedman <ericbrandon -at- gmail.com>

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