Merge branch 'main' into dependabot/conda/anaconda-2025.12

Author: mmcky

.github/workflows/cache.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Anaconda
         uses: conda-incubator/setup-miniconda@v3
         with:

.github/workflows/ci.yml

@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Anaconda
         uses: conda-incubator/setup-miniconda@v3
         with:

.github/workflows/collab.yml

@@ -7,7 +7,7 @@ jobs:
     container:
       image: us-docker.pkg.dev/colab-images/public/runtime:latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           ref: ${{ github.event.pull_request.head.sha }}
       - name: Check for dockerenv file

.github/workflows/linkcheck.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       # Checkout the live site (html)
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: gh-pages
       - name: Link Checker

.github/workflows/publish.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Anaconda
         uses: conda-incubator/setup-miniconda@v3
         with:
@@ -90,7 +90,7 @@ jobs:
           }
           EOF
       - name: Upload archives to release
-        uses: softprops/action-gh-release@v1
+        uses: softprops/action-gh-release@v2
         with:
           files: |
             lecture-python-intro-html-${{ github.ref_name }}.tar.gz

environment.yml

@@ -7,11 +7,11 @@ dependencies:
   - pip
   - pip:
     - jupyter-book==1.0.4post1
-    - quantecon-book-theme==0.9.2
+    - quantecon-book-theme==0.15.0
     - sphinx-tojupyter==0.3.1
-    - sphinxext-rediraffe==0.2.7
+    - sphinxext-rediraffe==0.3.0
     - sphinx-exercise==1.0.1
-    - sphinx-proof==0.2.1
+    - sphinx-proof==0.3.0
     - sphinxcontrib-youtube==1.4.1
     - sphinx-togglebutton==0.3.2
     - sphinx-reredirects==1.0.0