Revert two previous updates on the federated learning branch.

.github/dependabot.yml

@@ -8,28 +8,24 @@ updates:
   - package-ecosystem: "maven"
     directory: "/jvm-packages"
     schedule:
-      interval: "monthly"
+      interval: "daily"
   - package-ecosystem: "maven"
     directory: "/jvm-packages/xgboost4j"
     schedule:
       interval: "daily"
   - package-ecosystem: "maven"
     directory: "/jvm-packages/xgboost4j-gpu"
     schedule:
-      interval: "monthly"
+      interval: "daily"
   - package-ecosystem: "maven"
     directory: "/jvm-packages/xgboost4j-example"
     schedule:
-      interval: "monthly"
+      interval: "daily"
   - package-ecosystem: "maven"
     directory: "/jvm-packages/xgboost4j-spark"
     schedule:
       interval: "daily"
   - package-ecosystem: "maven"
     directory: "/jvm-packages/xgboost4j-spark-gpu"
     schedule:
-      interval: "monthly"
-  - package-ecosystem: "github-actions"
-    directory: /
-    schedule:
-      interval: "monthly"
+      interval: "daily"

.github/workflows/i386.yml

@@ -5,10 +5,6 @@ on: [push, pull_request]
 permissions:
   contents: read # to fetch code (actions/checkout)
 
-concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
-  cancel-in-progress: true
-
 jobs:
   build-32bit:
     name: Build 32-bit
@@ -19,7 +15,7 @@ jobs:
         ports:
           - 5000:5000
     steps:
-    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+    - uses: actions/checkout@v2.5.0
       with:
         submodules: 'true'
     - name: Set up Docker Buildx

.github/workflows/jvm_tests.yml

@@ -5,34 +5,33 @@ on: [push, pull_request]
 permissions:
   contents: read # to fetch code (actions/checkout)
 
-concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
-  cancel-in-progress: true
-
 jobs:
   test-with-jvm:
     name: Test JVM on OS ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
-        os: [windows-latest, ubuntu-latest, macos-13]
+        os: [windows-latest, ubuntu-latest, macos-11]
 
     steps:
-    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
       with:
         submodules: 'true'
 
-    - uses: conda-incubator/setup-miniconda@a4260408e20b96e80095f42ff7f1a15b27dd94ca  # v3.0.4
+    - uses: mamba-org/setup-micromamba@422500192359a097648154e8db4e39bdb6c6eed7  # v1.8.1
       with:
-        miniforge-variant: Mambaforge
-        miniforge-version: latest
-        activate-environment: jvm_tests
-        environment-file: tests/ci_build/conda_env/jvm_tests.yml
-        use-mamba: true
+        micromamba-version: '1.5.6-0'
+        environment-name: jvm_tests
+        create-args: >-
+          python=3.10
+          awscli
+        cache-downloads: true
+        cache-environment: true
+        init-shell: bash powershell
 
     - name: Cache Maven packages
-      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
+      uses: actions/cache@13aacd865c20de90d75de3b17ebe84f7a17d57d2  # v4.0.0
       with:
         path: ~/.m2
         key: ${{ runner.os }}-m2-${{ hashFiles('./jvm-packages/pom.xml') }}
@@ -58,7 +57,7 @@ jobs:
       id: extract_branch
       if: |
         (github.ref == 'refs/heads/master' || contains(github.ref, 'refs/heads/release_')) &&
-        (matrix.os == 'windows-latest' || matrix.os == 'macos-13')
+        (matrix.os == 'windows-latest' || matrix.os == 'macos-11')
 
     - name: Publish artifact xgboost4j.dll to S3
       run: |
@@ -82,7 +81,7 @@ jobs:
         python -m awscli s3 cp libxgboost4j_${{ github.sha }}.dylib s3://xgboost-nightly-builds/${{ steps.extract_branch.outputs.branch }}/libxgboost4j/ --acl public-read --region us-west-2
       if: |
         (github.ref == 'refs/heads/master' || contains(github.ref, 'refs/heads/release_')) &&
-        matrix.os == 'macos-13'
+        matrix.os == 'macos-11'
       env:
         AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID_IAM_S3_UPLOADER }}
         AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY_IAM_S3_UPLOADER }}

.github/workflows/main.yml

@@ -9,10 +9,6 @@ on: [push, pull_request]
 permissions:
   contents: read # to fetch code (actions/checkout)
 
-concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
-  cancel-in-progress: true
-
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
   gtest-cpu:
@@ -21,9 +17,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-12]
+        os: [macos-11]
     steps:
-    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+    - uses: actions/checkout@e2f20e631ae6d7dd3b768f56a5d2af784dd54791 # v2.5.0
       with:
         submodules: 'true'
     - name: Install system packages
@@ -33,7 +29,7 @@ jobs:
       run: |
         mkdir build
         cd build
-        cmake .. -DGOOGLE_TEST=ON -DUSE_OPENMP=ON -DUSE_DMLC_GTEST=ON -GNinja -DBUILD_DEPRECATED_CLI=ON -DUSE_SANITIZER=ON -DENABLED_SANITIZERS=address -DCMAKE_BUILD_TYPE=RelWithDebInfo
+        cmake .. -DGOOGLE_TEST=ON -DUSE_OPENMP=ON -DUSE_DMLC_GTEST=ON -GNinja -DBUILD_DEPRECATED_CLI=ON
         ninja -v
     - name: Run gtest binary
       run: |
@@ -49,7 +45,7 @@ jobs:
       matrix:
         os: [ubuntu-latest]
     steps:
-    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+    - uses: actions/checkout@e2f20e631ae6d7dd3b768f56a5d2af784dd54791 # v2.5.0
       with:
         submodules: 'true'
     - name: Install system packages
@@ -76,16 +72,16 @@ jobs:
         os: [ubuntu-latest]
         python-version: ["3.8"]
     steps:
-    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+    - uses: actions/checkout@e2f20e631ae6d7dd3b768f56a5d2af784dd54791 # v2.5.0
       with:
         submodules: 'true'
-    - uses: conda-incubator/setup-miniconda@a4260408e20b96e80095f42ff7f1a15b27dd94ca  # v3.0.4
+    - uses: mamba-org/provision-with-micromamba@f347426e5745fe3dfc13ec5baf20496990d0281f # v14
       with:
-        miniforge-variant: Mambaforge
-        miniforge-version: latest
-        activate-environment: linux_sycl_test
+        cache-downloads: true
+        cache-env: true
+        environment-name: linux_sycl_test
         environment-file: tests/ci_build/conda_env/linux_sycl_test.yml
-        use-mamba: true
+
     - name: Display Conda env
       run: |
         conda info
@@ -118,16 +114,15 @@ jobs:
         os: ["ubuntu-latest"]
         python-version: ["3.8"]
     steps:
-    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+    - uses: actions/checkout@e2f20e631ae6d7dd3b768f56a5d2af784dd54791 # v2.5.0
       with:
         submodules: 'true'
-    - uses: conda-incubator/setup-miniconda@a4260408e20b96e80095f42ff7f1a15b27dd94ca  # v3.0.4
+    - uses: mamba-org/provision-with-micromamba@f347426e5745fe3dfc13ec5baf20496990d0281f # v14
       with:
-        miniforge-variant: Mambaforge
-        miniforge-version: latest
-        activate-environment: cpp_test
+        cache-downloads: true
+        cache-env: true
+        environment-name: cpp_test
         environment-file: tests/ci_build/conda_env/cpp_test.yml
-        use-mamba: true
     - name: Display Conda env
       run: |
         conda info
@@ -156,9 +151,8 @@ jobs:
     - name: Build and install XGBoost shared library
       run: |
         cd build
-        cmake .. -DBUILD_STATIC_LIB=OFF -DCMAKE_INSTALL_PREFIX=$CONDA_PREFIX -GNinja -DPLUGIN_FEDERATED=ON -DGOOGLE_TEST=ON
+        cmake .. -DBUILD_STATIC_LIB=OFF -DCMAKE_INSTALL_PREFIX=$CONDA_PREFIX -GNinja
         ninja -v install
-        ./testxgboost
         cd -
     - name: Build and run C API demo with shared
       run: |
@@ -177,10 +171,10 @@ jobs:
     runs-on: ubuntu-latest
     name: Code linting for C++
     steps:
-    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+    - uses: actions/checkout@e2f20e631ae6d7dd3b768f56a5d2af784dd54791 # v2.5.0
       with:
         submodules: 'true'
-    - uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
+    - uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c # v5.0.0
       with:
         python-version: "3.8"
         architecture: 'x64'