From 2539f60df9f4bb1c3eedec9761b2900694c0dacb Mon Sep 17 00:00:00 2001
From: Junxiao Shi <git@mail1.yoursunny.com>
Date: Wed, 5 Jun 2024 20:37:29 -0400
Subject: [PATCH] ci: pin to ESP32 v2.x

---
 .github/workflows/build.yml | 10 +++++++---
 README.md                   |  2 ++
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e097299..dab25a5 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,15 +15,18 @@ jobs:
             fqbn: esp8266:esp8266:nodemcuv2
           - chip: ESP32
             core-url: https://espressif.github.io/arduino-esp32/package_esp32_index.json
+            core-version: @2
             fqbn: esp32:esp32:esp32wrover
             build-args: --build-property=build.partitions=default_ffat
             arduino-libs: NimBLE-Arduino
           - chip: ESP32S2
             core-url: https://espressif.github.io/arduino-esp32/package_esp32_index.json
+            core-version: @2
             fqbn: esp32:esp32:adafruit_magtag29_esp32s2
             build-args: --build-property=build.partitions=default_ffat
           - chip: ESP32C3
             core-url: https://espressif.github.io/arduino-esp32/package_esp32_index.json
+            core-version: @2
             fqbn: esp32:esp32:esp32c3
             build-args: --build-property=build.partitions=default_ffat
             arduino-libs: NimBLE-Arduino
@@ -34,7 +37,7 @@ jobs:
       fail-fast: false
     name: ${{ matrix.chip }}
     steps:
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: '3.10'
         if: ${{ matrix.pip-deps }}
@@ -53,7 +56,8 @@ jobs:
       - name: Install Arduino cores
         run: |
           FQBN=${{ matrix.fqbn }}
-          arduino-cli core install ${FQBN%:*} --additional-urls "${{ matrix.core-url }}"
+          COREVER=${{ matrix.core-version }}
+          arduino-cli core install ${FQBN%:*}$COREVER --additional-urls "${{ matrix.core-url }}"
           echo ${{ matrix.pip-deps }} | xargs -r pip install
           echo ArduinoUnit ${{ matrix.arduino-libs }} | xargs -rn1 arduino-cli lib install
       - uses: actions/checkout@v4
@@ -92,7 +96,7 @@ jobs:
       - name: Build docs
         run: docs/build.sh
       - name: Deploy docs
-        uses: nwtgck/actions-netlify@v2.1
+        uses: nwtgck/actions-netlify@v3
         with:
           publish-dir: ./docs/html/
           production-deploy: true
diff --git a/README.md b/README.md
index 81762e4..bec91e3 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@
 
 **esp8266ndn** library enables [Named Data Networking](https://named-data.net/) application development in Arduino environment. It supports [ESP8266](https://github.com/esp8266/Arduino), [ESP32, ESP32-S2, ESP32-C3](https://github.com/espressif/arduino-esp32), and [Adafruit nRF52](https://github.com/adafruit/Adafruit_nRF52_Arduino) microcontrollers.
 
+Note: currently NDNph and esp8266ndn are compatible with ESP32 Arduino core v2.x; it is incompatible with ESP32 Arduino core v3.x at the moment.
+
 * [Doxygen documentation](https://esp8266ndn.ndn.today/)
 * [#esp8266ndn on Twitter](https://twitter.com/hashtag/esp8266ndn) for announcements
 * [GitHub Issues](https://github.com/yoursunny/esp8266ndn) for bug reports and best-effort support