Merge branch 'master' into ota_commands_in_flash

Author: davisonja

.travis.yml

@@ -1,6 +1,6 @@
 language: bash
 os: linux
-dist: trusty
+dist: bionic
 
 git:
   depth: 1
@@ -76,21 +76,29 @@ jobs:
       env:
         - BUILD_PARITY=odd
 
+    - name: "Mac OSX can build sketches"
+      os: osx
+      stage: build
+      script: $TRAVIS_BUILD_DIR/tests/build.sh
+      env: MACOSX=1 BUILD_PARITY=custom mod=500 rem=1
+
+    - name: "Windows can build sketches"
+      os: windows
+      stage: build
+      script: $TRAVIS_BUILD_DIR/tests/build.sh
+      env: WINDOWS=1 BUILD_PARITY=custom mod=500 rem=1
+
     - name: "Host tests"
       stage: build
       script: $TRAVIS_BUILD_DIR/tests/ci/host_test.sh
       install:
-        - sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
-        - sudo apt-get update -q
-        - sudo apt-get install -y --allow-unauthenticated g++-7 gcc-7
         - sudo apt-get install valgrind lcov
-      env: CC=gcc-7 CXX=g++-7
 
     - name: "Docs"
       stage: build
       script: $TRAVIS_BUILD_DIR/tests/ci/build_docs.sh
       install:
-          - sudo apt-get install python3-pip
+          - sudo apt-get install python3-pip python3-setuptools
           - pip3 install --user -r doc/requirements.txt;
 
     - name: "Style check"
@@ -101,23 +109,6 @@ jobs:
     - name: "Mock trivial test"
       stage: build
       script: $TRAVIS_BUILD_DIR/tests/buildm.sh
-      install:
-        - sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
-        - sudo apt-get update -q
-        - sudo apt-get install -y --allow-unauthenticated g++-7 gcc-7
-      env: CC=gcc-7 CXX=g++-7
-
-    - name: "Mac OSX can build sketches"
-      os: osx
-      stage: build
-      script: $TRAVIS_BUILD_DIR/tests/build.sh
-      env: MACOSX=1 BUILD_PARITY=custom mod=500 rem=1
-
-    - name: "Windows can build sketches"
-      os: windows
-      stage: build
-      script: $TRAVIS_BUILD_DIR/tests/build.sh
-      env: WINDOWS=1 BUILD_PARITY=custom mod=500 rem=1
 
     - name: "Boards"
       stage: build

README.md

@@ -3,7 +3,7 @@ Arduino core for ESP8266 WiFi chip
 
 # Quick links
 
-- [Latest release documentation](https://arduino-esp8266.readthedocs.io/en/2.5.2/)
+- [Latest release documentation](https://arduino-esp8266.readthedocs.io/en/2.6.1/)
 - [Current "git version" documentation](https://arduino-esp8266.readthedocs.io/en/latest/)
 - [Install git version](https://arduino-esp8266.readthedocs.io/en/latest/installing.html#using-git-version) ([sources](doc/installing.rst#using-git-version))
 
@@ -36,7 +36,7 @@ Starting with 1.6.4, Arduino allows installation of third-party platform package
 #### Latest release [![Latest release](https://img.shields.io/github/release/esp8266/Arduino.svg)](https://github.com/esp8266/Arduino/releases/latest/)
 Boards manager link: `https://arduino.esp8266.com/stable/package_esp8266com_index.json`
 
-Documentation: [https://arduino-esp8266.readthedocs.io/en/2.5.2/](https://arduino-esp8266.readthedocs.io/en/2.5.2/)
+Documentation: [https://arduino-esp8266.readthedocs.io/en/2.6.1/](https://arduino-esp8266.readthedocs.io/en/2.6.1/)
 
 ### Using git version
 [![Linux build status](https://travis-ci.org/esp8266/Arduino.svg)](https://travis-ci.org/esp8266/Arduino)
@@ -123,3 +123,13 @@ ESP8266 core files are licensed under LGPL.
 [BearSSL](https://bearssl.org) library written by Thomas Pornin, built from https://github.com/earlephilhower/bearssl-esp8266, is used in this project.  It is distributed under the [MIT License](https://bearssl.org/#legal-details).
 
 [LittleFS](https://github.com/ARMmbed/littlefs) library written by ARM Limited and released under the [BSD 3-clause license](https://github.com/ARMmbed/littlefs/blob/master/LICENSE.md).
+
+### Other useful links ###
+
+[Toolchain repo](https://github.com/earlephilhower/esp-quick-toolchain)
+
+[Lwip link layer repo](https://github.com/d-a-v/esp82xx-nonos-linklayer)
+
+[SoftwareSerial repo](https://github.com/plerup/espsoftwareserial)
+
+[Serial Monitor Arduino IDE plugin](https://github.com/mytrain/arduino-esp8266-serial-plugin) Original discussion [here](https://github.com/esp8266/Arduino/issues/1360), quick download [there](http://mytrain.fr/cms//images/mytrain/private/ESP8266SM.v3.zip).