feat(developer-hub): add Change Log page under Price Feeds

.github/workflows/changelog-snapshot.yml

@@ -0,0 +1,91 @@
+name: Snapshot Pyth symbols for Change Log
+
+on:
+  schedule:
+    # Daily at 00:30 UTC. Slight offset from midnight to avoid contention
+    # and to ensure any in-progress upstream writes have settled.
+    - cron: "30 0 * * *"
+  workflow_dispatch: {}
+
+permissions:
+  contents: write
+
+jobs:
+  snapshot:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+
+      - uses: pnpm/action-setup@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: "package.json"
+          cache: pnpm
+
+      - name: Install dependencies for developer-hub
+        working-directory: apps/developer-hub
+        run: pnpm install --frozen-lockfile --filter @pythnetwork/developer-hub...
+
+      # Restore the rolling baseline (the 3 MB symbols snapshot from the
+      # previous run) so today's diff can be computed against it. Missing
+      # cache is fine — the snapshot script bootstraps a fresh baseline.
+      - name: Restore baseline snapshot
+        uses: actions/cache/restore@v4
+        with:
+          path: apps/developer-hub/data/latest-snapshot.json
+          key: changelog-baseline
+          restore-keys: changelog-baseline
+
+      - name: Capture today's snapshot and diff
+        working-directory: apps/developer-hub
+        run: pnpm snapshot:changelog
+
+      - name: Verify generator runs cleanly
+        working-directory: apps/developer-hub
+        run: pnpm generate:changelog
+
+      # Save today's snapshot back to the cache for tomorrow. Unique key
+      # per run so each save creates a new entry; old caches age out via
+      # GitHub's standard 7-day inactivity eviction.
+      - name: Save baseline snapshot
+        if: always()
+        uses: actions/cache/save@v4
+        with:
+          path: apps/developer-hub/data/latest-snapshot.json
+          key: changelog-baseline-${{ github.run_id }}
+
+      - name: Commit and push diff if changed
+        run: |
+          set -euo pipefail
+
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git add apps/developer-hub/data/changelog-diffs/
+
+          if git diff --cached --quiet; then
+            echo "No new diff today — nothing to commit."
+            exit 0
+          fi
+
+          DATE=$(date -u +%Y-%m-%d)
+          git commit -m "chore(developer-hub): daily change-log diff ${DATE}"
+
+          # Retry on conflict — another commit may have landed on the
+          # default branch between checkout and push. Rebase and retry
+          # up to 3 times before giving up loudly.
+          BRANCH="${GITHUB_REF_NAME}"
+          for attempt in 1 2 3; do
+            if git push origin "HEAD:${BRANCH}"; then
+              echo "Push succeeded on attempt ${attempt}."
+              exit 0
+            fi
+            echo "Push rejected on attempt ${attempt}; rebasing onto origin/${BRANCH} and retrying…"
+            git fetch origin "${BRANCH}"
+            git rebase "origin/${BRANCH}"
+          done
+
+          echo "::error::Push failed after 3 attempts. Investigate branch protection or persistent races." >&2
+          exit 1

apps/developer-hub/.gitignore

@@ -3,5 +3,12 @@
 dist/
 next-env.d.ts
 
+# Auto-generated by `pnpm generate:changelog` from data/changelog-diffs/.
+src/components/ChangeLog/generated-data.ts
+
+# Rolling snapshot baseline used by the daily diff job. Persisted between
+# CI runs via GitHub Actions cache, never committed.
+data/latest-snapshot.json
+
 # Ai Migration
 .ai/**

apps/developer-hub/content/docs/price-feeds/changelog.mdx

@@ -0,0 +1,9 @@
+---
+title: Change Log
+description: Daily record of status transitions on Pyth price feeds — additions, activations, upcoming expirations, and removals.
+slug: /price-feeds/changelog
+---
+
+import { ChangeLog } from "../../../src/components/ChangeLog";
+
+<ChangeLog />

apps/developer-hub/content/docs/price-feeds/meta.json

@@ -2,7 +2,7 @@
   "root": true,
   "title": "Price Feeds",
   "description": "Real-time financial market data",
-  "pages": ["core", "pro"],
+  "pages": ["core", "pro", "changelog"],
   "defaultOpen": true,
   "icon": "ChartLine"
 }

apps/developer-hub/data/changelog-diffs/2026-05-08.json

@@ -0,0 +1,87 @@
+{
+  "date": "2026-05-08",
+  "label": "Friday",
+  "summary": {
+    "added": 6,
+    "went_live": 2,
+    "expiring": 0,
+    "removed": 0
+  },
+  "hero": "6 new feeds announced, 2 went live.",
+  "events": [
+    {
+      "id": "Equity.US.IGE/USD",
+      "lazerId": 2795,
+      "asset": "Ishares North American Natural Resources Etf",
+      "assetType": "equity",
+      "date": "2026-05-08",
+      "quote": "USD",
+      "hermesId": "c0948c8763aafa254159835fac7d9cc1f65cb2c370791d7fa52493e0bfe974bd",
+      "changeType": "went_live"
+    },
+    {
+      "id": "Equity.US.TER/USD",
+      "lazerId": 1420,
+      "asset": "Teradyne Inc",
+      "assetType": "equity",
+      "date": "2026-05-08",
+      "quote": "USD",
+      "hermesId": "58ab181e7512766728d2cc3581839bbb913e6cd24457ba422cbe2a33df64416e",
+      "changeType": "went_live"
+    },
+    {
+      "id": "Crypto.AFSUI/SUI.RR",
+      "lazerId": 3245,
+      "asset": "Aftermath Staked Sui",
+      "assetType": "crypto-redemption-rate",
+      "date": "2026-05-08",
+      "quote": "SUI",
+      "changeType": "added"
+    },
+    {
+      "id": "Crypto.HASUI/SUI.RR",
+      "lazerId": 3244,
+      "asset": "Haedal Staked Sui",
+      "assetType": "crypto-redemption-rate",
+      "date": "2026-05-08",
+      "quote": "SUI",
+      "changeType": "added"
+    },
+    {
+      "id": "Crypto.EXUSDC/USDC.RR",
+      "lazerId": 3243,
+      "asset": "Exceed Usd Coin",
+      "assetType": "crypto-redemption-rate",
+      "date": "2026-05-08",
+      "quote": "USDC",
+      "changeType": "added"
+    },
+    {
+      "id": "Crypto.LIMUSD/USDC.RR",
+      "lazerId": 3242,
+      "asset": "Liminal Us Dollar",
+      "assetType": "crypto-redemption-rate",
+      "date": "2026-05-08",
+      "quote": "USDC",
+      "changeType": "added"
+    },
+    {
+      "id": "Crypto.HEMIBTC/BTC.RR",
+      "lazerId": 3241,
+      "asset": "Hemi Bitcoin",
+      "assetType": "crypto-redemption-rate",
+      "date": "2026-05-08",
+      "quote": "BTC",
+      "changeType": "added"
+    },
+    {
+      "id": "Equity.US.DRAM/USD",
+      "lazerId": 3240,
+      "asset": "Roundhill Memory Etf",
+      "assetType": "equity",
+      "date": "2026-05-08",
+      "quote": "USD",
+      "changeType": "added"
+    }
+  ]
+}

apps/developer-hub/next.config.js

@@ -258,7 +258,7 @@ const config = {
       },
 
       {
-        source: String.raw`/price-feeds/:path((?!core(?:/|$|\.mdx?$)|pro(?:/|$|\.mdx?$)|hip-3-service(?:/|$|\.mdx?$)).*)`,
+        source: String.raw`/price-feeds/:path((?!core(?:/|$|\.mdx?$)|pro(?:/|$|\.mdx?$)|hip-3-service(?:/|$|\.mdx?$)|changelog(?:/|$|\.mdx?$)).*)`,
         destination: "/price-feeds/core/:path",
         permanent: true,
       },

apps/developer-hub/package.json

@@ -68,7 +68,9 @@
     "build:analyze": "ANALYZE=true next build",
     "count:llm-tokens": "tsx ./scripts/count-llm-tokens.ts",
     "fix:lint:stylelint": "stylelint --fix 'src/**/*.scss'",
+    "generate:changelog": "tsx ./scripts/generate-changelog.ts",
     "generate:docs": "tsx ./scripts/generate-docs.ts",
+    "snapshot:changelog": "tsx ./scripts/snapshot-and-diff.ts",
     "start:dev": "next dev --port 3627",
     "start:prod": "next start --port 3627",
     "test:lint:stylelint": "stylelint 'src/**/*.scss' --max-warnings 0",