diff --git a/.github/workflows/build_tests.yml b/.github/workflows/build_tests.yml
index 17cd3b0a1bc..b7c4ec40f1a 100644
--- a/.github/workflows/build_tests.yml
+++ b/.github/workflows/build_tests.yml
@@ -12,10 +12,6 @@ on:
         description: 'Chip to build tests for'
         required: true
 
-concurrency:
-  group: tests-build-${{ github.event.pull_request.number || github.ref }}-${{ inputs.chip }}-${{ inputs.type }}
-  cancel-in-progress: true
-
 jobs:
   build-tests:
     name: Build ${{ inputs.type }} tests for ${{ inputs.chip }}
diff --git a/.github/workflows/hw.yml b/.github/workflows/hw.yml
index 376c38a6530..8c7dc0dffb2 100644
--- a/.github/workflows/hw.yml
+++ b/.github/workflows/hw.yml
@@ -12,10 +12,6 @@ on:
         description: 'Chip to run tests for'
         required: true
 
-concurrency:
-  group: tests-hw-${{ github.event.pull_request.number || github.ref }}-${{ inputs.chip }}-${{ inputs.type }}
-  cancel-in-progress: true
-
 jobs:
   hardware-test:
     name: Hardware ${{ inputs.chip }} ${{ inputs.type }} tests
diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index 05fd1a8a2b8..3ef15df1566 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -171,7 +171,7 @@ jobs:
         echo "chunks=$chunks" >> $GITHUB_OUTPUT
 
     - name: Upload sketches found
-      if: ${{ steps.set-chunks.outputs.build_all == 'false' }}
+      if: ${{ steps.set-chunks.outputs.build_all == 'false' && steps.set-chunks.outputs.build_libraries == 'true' }}
       uses: actions/upload-artifact@v4
       with:
         name: sketches_found
@@ -214,13 +214,13 @@ jobs:
       run: bash ./.github/scripts/on-push.sh ${{ matrix.chunk }} ${{ env.MAX_CHUNKS }} 1
 
     - name: Download sketches found
-      if: ${{ needs.gen-chunks.outputs.build_all == 'false' }}
+      if: ${{ needs.gen-chunks.outputs.build_all == 'false' && needs.gen-chunks.outputs.build_libraries == 'true' }}
       uses: actions/download-artifact@v4
       with:
         name: sketches_found
 
     - name: Build selected sketches
-      if: ${{ needs.gen-chunks.outputs.build_all == 'false' }}
+      if: ${{ needs.gen-chunks.outputs.build_all == 'false' && needs.gen-chunks.outputs.build_libraries == 'true' }}
       run: bash ./.github/scripts/on-push.sh ${{ matrix.chunk }} ${{ needs.gen-chunks.outputs.chunk_count }} 1 sketches_found.txt
 
     #Upload cli compile json as artifact
diff --git a/.github/workflows/qemu.yml b/.github/workflows/qemu.yml
index 1b8d4538901..1aa155129c8 100644
--- a/.github/workflows/qemu.yml
+++ b/.github/workflows/qemu.yml
@@ -10,10 +10,6 @@ on:
         required: true
         type: string
 
-concurrency:
-  group: qemu-${{ github.event.pull_request.number || github.ref }}-${{ inputs.chip }}-${{ inputs.type }}
-  cancel-in-progress: true
-
 jobs:
   qemu-test:
     name: QEMU ${{ inputs.chip }} ${{ inputs.type }} tests
diff --git a/.github/workflows/wokwi.yml b/.github/workflows/wokwi.yml
index 8462f47eb12..84b0acf06b4 100644
--- a/.github/workflows/wokwi.yml
+++ b/.github/workflows/wokwi.yml
@@ -16,10 +16,6 @@ on:
         description: 'Wokwi CLI API token'
         required: true
 
-concurrency:
-  group: tests-wokwi-${{ github.event.pull_request.number || github.ref }}-${{ inputs.chip }}-${{ inputs.type }}
-  cancel-in-progress: true
-
 env:
   WOKWI_TIMEOUT: 600000 # Milliseconds
 
diff --git a/cores/esp32/MacAddress.cpp b/cores/esp32/MacAddress.cpp
index 718b5cfbaf1..8b4fab1781a 100644
--- a/cores/esp32/MacAddress.cpp
+++ b/cores/esp32/MacAddress.cpp
@@ -67,12 +67,12 @@ bool MacAddress::fromString(const char *buf) {
 
 //Parse user entered string into MAC address
 bool MacAddress::fromString6(const char *buf) {
-  char cs[18];
+  char cs[18];  // 17 + 1 for null terminator
   char *token;
   char *next;  //Unused but required
   int i;
 
-  strncpy(cs, buf, sizeof(cs));  //strtok modifies the buffer: copy to working buffer.
+  strncpy(cs, buf, sizeof(cs) - 1);  //strtok modifies the buffer: copy to working buffer.
 
   for (i = 0; i < 6; i++) {
     token = strtok((i == 0) ? cs : NULL, ":");  //Find first or next token
@@ -86,12 +86,12 @@ bool MacAddress::fromString6(const char *buf) {
 }
 
 bool MacAddress::fromString8(const char *buf) {
-  char cs[24];
+  char cs[24];  // 23 + 1 for null terminator
   char *token;
   char *next;  //Unused but required
   int i;
 
-  strncpy(cs, buf, sizeof(cs));  //strtok modifies the buffer: copy to working buffer.
+  strncpy(cs, buf, sizeof(cs) - 1);  //strtok modifies the buffer: copy to working buffer.
 
   for (i = 0; i < 8; i++) {
     token = strtok((i == 0) ? cs : NULL, ":");  //Find first or next token
diff --git a/cores/esp32/esp32-hal-adc.c b/cores/esp32/esp32-hal-adc.c
index ed9108b6a7f..89ddd726159 100644
--- a/cores/esp32/esp32-hal-adc.c
+++ b/cores/esp32/esp32-hal-adc.c
@@ -458,7 +458,7 @@ esp_err_t __analogContinuousInit(adc_channel_t *channel, uint8_t channel_num, ad
 
 bool analogContinuous(uint8_t pins[], size_t pins_count, uint32_t conversions_per_pin, uint32_t sampling_freq_hz, void (*userFunc)(void)) {
   adc_channel_t channel[pins_count];
-  adc_unit_t adc_unit;
+  adc_unit_t adc_unit = ADC_UNIT_1;
   esp_err_t err = ESP_OK;
 
   //Convert pins to channels and check if all are ADC1s unit
diff --git a/idf_component.yml b/idf_component.yml
index bc987f25a93..3accad1fb9d 100644
--- a/idf_component.yml
+++ b/idf_component.yml
@@ -87,4 +87,4 @@ dependencies:
     version: "1.0.3"
     require: public
 examples:
-  - path: ./idf_component_examples/Hello_world
+  - path: ./idf_component_examples/hello_world
diff --git a/idf_component_examples/Hello_world/CMakeLists.txt b/idf_component_examples/hello_world/CMakeLists.txt
similarity index 100%
rename from idf_component_examples/Hello_world/CMakeLists.txt
rename to idf_component_examples/hello_world/CMakeLists.txt
diff --git a/idf_component_examples/Hello_world/README.md b/idf_component_examples/hello_world/README.md
similarity index 95%
rename from idf_component_examples/Hello_world/README.md
rename to idf_component_examples/hello_world/README.md
index f666805dd8a..6e5f1e9acff 100644
--- a/idf_component_examples/Hello_world/README.md
+++ b/idf_component_examples/hello_world/README.md
@@ -12,13 +12,13 @@ To create a ESP-IDF project from this example with the latest release of Arduino
 ESP-IDF will download all dependencies needed from the component registry and setup the project for you.
 
 If you want to use cloned Arduino-esp32 repository, you can build this example directly.
-Go to the example folder `arduino-esp32/idf_component_examples/Hello_world`.
+Go to the example folder `arduino-esp32/idf_component_examples/hello_world`.
 First you need to comment line 6 `pre_release: true` in examples `/main/idf_component.yml`.
 Then just run command: `idf.py build`.
 
 ## Example folder contents
 
-The project **Hello_world** contains one source file in C++ language [main.cpp](main/main.cpp). The file is located in folder [main](main).
+The project **hello_world** contains one source file in C++ language [main.cpp](main/main.cpp). The file is located in folder [main](main).
 
 ESP-IDF projects are built using CMake. The project build configuration is contained in `CMakeLists.txt`
 files that provide set of directives and instructions describing the project's source files and targets
diff --git a/idf_component_examples/Hello_world/main/CMakeLists.txt b/idf_component_examples/hello_world/main/CMakeLists.txt
similarity index 100%
rename from idf_component_examples/Hello_world/main/CMakeLists.txt
rename to idf_component_examples/hello_world/main/CMakeLists.txt
diff --git a/idf_component_examples/Hello_world/main/idf_component.yml b/idf_component_examples/hello_world/main/idf_component.yml
similarity index 100%
rename from idf_component_examples/Hello_world/main/idf_component.yml
rename to idf_component_examples/hello_world/main/idf_component.yml
diff --git a/idf_component_examples/Hello_world/main/main.cpp b/idf_component_examples/hello_world/main/main.cpp
similarity index 100%
rename from idf_component_examples/Hello_world/main/main.cpp
rename to idf_component_examples/hello_world/main/main.cpp
diff --git a/idf_component_examples/Hello_world/sdkconfig.defaults b/idf_component_examples/hello_world/sdkconfig.defaults
similarity index 100%
rename from idf_component_examples/Hello_world/sdkconfig.defaults
rename to idf_component_examples/hello_world/sdkconfig.defaults
diff --git a/libraries/Ethernet/src/ETH.cpp b/libraries/Ethernet/src/ETH.cpp
index d7845b9ca3a..2480dd982ec 100644
--- a/libraries/Ethernet/src/ETH.cpp
+++ b/libraries/Ethernet/src/ETH.cpp
@@ -358,11 +358,11 @@ bool ETHClass::begin(eth_phy_type_t type, int32_t phy_addr, int mdc, int mdio, i
 #endif /* CONFIG_ETH_USE_ESP32_EMAC */
 
 #if ETH_SPI_SUPPORTS_CUSTOM
-static void *_eth_spi_init(const void *ctx) {
+__unused static void *_eth_spi_init(const void *ctx) {
   return (void *)ctx;
 }
 
-static esp_err_t _eth_spi_deinit(void *ctx) {
+__unused static esp_err_t _eth_spi_deinit(void *ctx) {
   return ESP_OK;
 }
 
@@ -575,8 +575,8 @@ bool ETHClass::beginSPI(
   }
 
   // Init common MAC and PHY configs to default
-  eth_mac_config_t eth_mac_config = ETH_MAC_DEFAULT_CONFIG();
-  eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
+  __unused eth_mac_config_t eth_mac_config = ETH_MAC_DEFAULT_CONFIG();
+  __unused eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
 
   // Update PHY config based on board specific configuration
   phy_config.phy_addr = phy_addr;