Merge branch 'main' into update-business-cycle-data-364

Author: mmcky

.github/workflows/cache.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0
       - name: Setup Anaconda

.github/workflows/ci.yml

@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0
       - name: Setup Anaconda
@@ -80,7 +80,7 @@ jobs:
           name: execution-reports
           path: _build/html/reports
       - name: Preview Deploy to Netlify
-        uses: nwtgck/actions-netlify@v3.0
+        uses: nwtgck/actions-netlify@v4.0
         with:
           publish-dir: '_build/html/'
           production-branch: main

.github/workflows/collab.yml

@@ -7,7 +7,7 @@ jobs:
     container:
       image: us-docker.pkg.dev/colab-images/public/runtime:latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           ref: ${{ github.event.pull_request.head.sha }}
       - name: Check for dockerenv file
@@ -43,7 +43,7 @@ jobs:
           name: execution-reports
           path: _build/html/reports
       - name: Preview Deploy to Netlify
-        uses: nwtgck/actions-netlify@v3.0
+        uses: nwtgck/actions-netlify@v4.0
         with:
           publish-dir: '_build/html/'
           production-branch: main

.github/workflows/linkcheck.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       # Checkout the live site (html)
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         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@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0
       - name: Setup Anaconda
@@ -101,7 +101,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: Deploy to Netlify
-        uses: nwtgck/actions-netlify@v3.0
+        uses: nwtgck/actions-netlify@v4.0
         with:
           publish-dir: '_build/html/'
           production-branch: main

environment.yml

@@ -3,11 +3,11 @@ channels:
   - default
 dependencies:
   - python=3.13
-  - anaconda=2025.12
+  - anaconda=2026.06
   - pip
   - pip:
     - jupyter-book==1.0.4post1
-    - quantecon-book-theme==0.20.3
+    - quantecon-book-theme==0.21.0
     - sphinx-tojupyter==0.6.0
     - sphinxext-rediraffe==0.3.0
     - sphinx-exercise==1.2.1

lectures/inequality.md

@@ -284,7 +284,8 @@ for var in varlist:
         # Repeat the observations according to their weights
         counts = list(round(df[df['year'] == year]['weights'] ))
         y = df[df['year'] == year][var].repeat(counts)
-        y = np.asarray(y)
+        # `.copy()` gives a writeable array (pandas 3.0 returns a read-only one)
+        y = np.asarray(y).copy()
 
         # Shuffle the sequence to improve the plot
         rd.shuffle(y)

lectures/input_output.md

@@ -20,7 +20,7 @@ This lecture requires the following imports and installs before we proceed.
 ```{code-cell} ipython3
 :tags: [hide-output]
 
-!pip install quantecon_book_networks
+!pip install quantecon_book_networks==1.6
 !pip install quantecon
 !pip install pandas-datareader
 ```