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Change Log

2.3.0

June 23, 2016

Package link: http://arduino.esp8266.com/versions/2.3.0/package_esp8266com_index.json.

Core

  • Fix NMI interrupt handler alignment
  • Update SDK to 1.5.3
  • umm_malloc: print block start address before heap corruption callback is triggered
  • If GDBStub library is used, break into gdb on assert and panic
  • Add option to keep FS classes in namespace (#2030)
  • Add SPIFFS::end (#1657)
  • Add ArduinoOTA::getHostname() interface
  • Add __throw_out_of_range
  • Add support for RTC user memory in ESP-specific APIs. (#1836)
  • Expose RTC_USER_MEM in esp8266_peri.h
  • Remove DISABLED macro (#2072)
  • Execute global constructors in correct order (#2074)
  • Real board name available in Sketch/MDNS/OTA (#2054)
  • Add DOUT/QOUT flash modes
  • Add ESP8285 entry in boards menu
  • Move timer detachInterrupt functions into IRAM (#2083)
  • Make Updater be able to run inside async callbacks (#2096)
  • Add new boards Phoenix 1.0 & Phoenix 2.0 (#2088)
  • Store git version of the core in the compiled binary (#2099)
  • Rebuild libstdc++ with mlongcalls and link against it (#1983)
  • Add mechanism for posting functions to the main loop (#2082)
  • MD5Builder::addStream: fixed falsy calculated hash for len > filelength (#2126)
  • Fix SPIFFS.openDir("") (#2143)
  • Bring back old semantics to random and randomSeed, add secureRandom (#1710) (#2142)
  • Add missing pgm_read_ptr{_near/_far} macros (#2160)
  • Add macro for maximum open SPIFFS files, settings it to 1 saves about 1k heap. (#2167)
  • Fix UART pins setting (#2098)
  • Fix ESP.getSketchSize, add ESP.getSketchMD5 (#2158)
  • Add Serial.baudRate() to get current baud rate (#2079)

Libraries

  • SNI support in WiFiClientSecure (#1285)
  • Update axTLS to 139914f
  • HTTPClient: return error when HTTPClient::begin is called with HTTPS URL without certificate fingerprint (#1941)
  • HTTPClient: fix default port not being set
  • HTTPClient: fix handling of chunked transfer encoding (#1975)
  • ESP8266SSDP: switch SSDP send arguments around
  • ESP8266WiFi: fix UdpContext::peek to return int (#1946)
  • ESP8266WiFi: fix WiFiSleepType_t values to match SDK ones
  • LwIP: use gcc-built LwIP by default (#1926)
  • LwIP: fix crash in igmp_start_timer (#1826)
  • HTTPClient: include non-standard ports in Host: header
  • ESP8266WiFi: Prevent WiFi config corruption (#1997 #1856 #1699 #1675)
  • GDBStub: fix section attribute for core gdbstub functions
  • Wire: I2C bus reset with info to user
  • ESP8266HTTPClient: allow HTTP header value without LWS
  • ESP8266mDNS: Fix mDNS doesn't accept queryService responses from avahi-daemon (#2015)
  • Add MFRC522 to supported libraries (#2044)
  • Update axTLS to ab516f7 (1.5.3+)
  • Mention ESP8266Ping library
  • ESP8266HTTPClient: fix duplicate Content-Length headers (#1902)
  • ESP8266HTTPUpdateServer: make HTTP Update Server more secure (#2104)
  • ESP8266WiFi: add virtual destructor to WiFiServer class (#2116)
  • ESP8266WiFi: fix error when calling WiFiServer::close more than once
  • ESP8266WiFi: WiFi event handling refactoring (#2119)
  • ESP8266mDNS: restart listening when WiFi STA is connected/disconnected (#1828)
  • ESP8266WiFi: allow DHCP client to be re-enabled using WiFi.config(0U, 0U, 0U) (#1896)
  • ESP8266WiFi: enable SO_REUSE in LwIP and WiFiServer (#1431)
  • ESP8266WebServer: make ESP8266WebServer::urlDecode public (#1419)
  • LwIP: sntp_localtime: return -1 in tm_isdst field (#2010)
  • ESP8266WiFi: fix for crash in WiFiClientSecure when WiFi is disconnected (#2139)
  • SD: Prevent WDT resets in SD library (#1815)
  • ESP8266WiFi: Fix issue when WiFi.begin(ssid, pass) is called right after WiFi.mode(WIFI_OFF)

Tools

  • Python 3 compatibility for get.py
  • Device side test library and test runner
  • Fix ARM toolchain files permissions (#2004)
  • Update esptool to 0.4.9

2.2.0

April 18, 2016

Package link: http://arduino.esp8266.com/versions/2.2.0/package_esp8266com_index.json.

Core

  • Leverage realloc() in String::changeBuffer()
  • Clean up core files
  • Add host side tests
  • Fix possible null pointer in umm_malloc
  • Remove "Upload Using" option from Tools menu
  • Move attachInterrupt and detachInterrupt into IRAM (#1734)
  • Implement strstr_P
  • Allow indefinite duration for tone()
  • Fix crashes when using tone()
  • Fix RF_MODE and ADC_MODE
  • Move micros, delayMicroseconds, millis to IRAM (#1326)
  • Fix pulseIn (#1072, #1149)
  • Accept both named constant and ADC channel number in analogRead (#1766)
  • Enable heap poisoning only when debug options are enabled (#1800)
  • Bootloader: don't touch RTC memory if it doesn't contain a valid command (#619)
  • Update SDK to 1.5.2 (#1653)
  • Clean up variants, fix digitalPinHasPWM definition (#1831)
  • Don't set RF mode on boot unless it was overridden
  • Change build.board property for boards which renumber pins like NodeMCU (#1878)
  • Fix Exception 2 when using printf or vprintf

Libraries

  • Update axTLS to 5b4be7d
  • WiFiClientSecure: implement connection timeout, fix connected method behavior
  • WiFiClient: fix write behavior when connection is closed by remote side
  • ESP8266HTTPServer: add font MIME types, fix #1601
  • ESP8266mDNS: add client support
  • Update SPIFFS to 82aeac6
  • Servo: move some functions into IRAM (#1742)
  • Update SoftwareSerial to version 3.1.0
  • ESP8266SSDP: change templates to include deviceType
  • ESP8266WebServer: handle more file types
  • SPI: add CPOL setting
  • ESP8266WebServer: Fix buffer overflow in ESP8266WebServer::authenticate (#1790)
  • ESP8266WiFi: fix undefined behavior in WiFiServer::setNoDelay (#1695)
  • Servo: use peripheral clock frequency when calculating FRC1 tick count (#1789)
  • ESP8266WiFi: avoid multiple instances of INADDR_NONE
  • Add LwIP binary built with gcc
  • ESP8266WiFi: Allow PSK instead of passphrase in WiFiSTA::begin
  • SPI: Fix SPI.transfer16() using wrong endianness
  • HTTPClient: decouple transport layer handling + save some RAM
  • ESP8266httpUpdate: decouple HTTPS overloads + save some RAM
  • Update and move lwIP headers, add options to use different lwIP build
  • ESP8266WebServer: wait for data to arrive
  • ESP8266WebServer: save RAM by moving response strings to flash (#1732)
  • SPI: Speed up SPI.writePattern()

Tools

  • Add ARM tools (#269)

2.1.0

February 27, 2016

Package link: http://arduino.esp8266.com/versions/2.1.0/package_esp8266com_index.json.

Core

  • Add function to know last reset reason.
  • Allow control of enabling debug and debug level from IDE
  • Add espduino board
  • Rework StreamString::write to use String internal buffer directly (#1289)
  • Add function to measure stack high water mark
  • Fix RAM corruption caused by our hook of register_chipv6_phy(init_data*).
  • Optimize PWM interrupt handler for better precision
  • Add warning levels configurable through Preferences
  • SPIFFS: check if path length is valid (#1089)
  • Set CPU frequency before running setup
  • Add core_esp8266_features.h to be able to detect the features and libraries included in the ESP core
  • Add ESPino to supported boards
  • Fix pwm first step getting skipped
  • Update SDK to 1.5.1_16_01_08
  • Bufferless and interruptless HardwareSerial
  • HardwareSerial: allow mapping of UART0 TX to GPIO2
  • Add 128K SPIFFS for 512KB modules
  • Reduce stack usage by Print::printf
  • Fix a crash in String::changeBuffer()
  • Implement static initialization guards (#500)
  • Implementation of Tone API using timer1
  • Use umm_malloc for heap management
  • Configurable I2C clock stretching limit
  • Add a new board entry for the SparkFun Thing Dev

Libraries

  • ESP8266HTTPClient: add CHUNKED encoding support (#1324)
  • Fixed crash bug with mDNS where a string buffer could be used uninitialized
  • Add WiFi TX power control
  • Add WiFi sleep management
  • Allow to hook into WiFi events from sketch
  • Allow setting TCP timeout
  • Add setSleepMode + getSleepMode and setPhyMode + getPhyMode to WiFi
  • Update GDBStub library with the source of esp-gdbstub
  • Servo: fix detach and attach
  • ESP8266mDNS: refactoring, add TXT support
  • Add HTTP Basic Auth to WebServer and libb64 (base64) to core
  • Fix link-time dependency of ESP8266WebServer on SPIFFS (#862)
  • Allow setting client side TLS key and certificate
  • Replace chain of UDP pbufs with a single pbuf before sending (#1009)
  • Unique Built-In libraries library.properties name
  • Improvements for MD5Builder with Stream
  • ESP8266SSDP: fixing TTL to 2 per spec
  • ESP8266WebServer: a content length of zero should also be sent
  • Use SoftwareSerial version 2.2
  • EEPROM: optimised _dirty flag
  • ESP8266mDNS: advertise all hosted services
  • Remove bundled OneWire - ESP8266 support has been merged in the official OneWire sources
  • WiFiClientSecure: don't panic if memory allocation fails
  • Verify domain name in WiFiClientSecure::verify
  • Speed up WiFi.hostByName when the hostname is actually an IP
  • Fix WiFi scan issue (#1355)
  • Workaround for LwIP not handling ERR_ABRT
  • Servo value read and write fixes

Tools

  • espota.py: add support for manually selecting ip and port for host side
  • Update esptool to 0.4.8
  • Make espota compatible with python 3.5

2.0.0

November 30, 2015

Package link: http://arduino.esp8266.com/versions/2.0.0/package_esp8266com_index.json.

Core

  • Add file system APIs and documentation
  • Add ConfigFile example
  • Allow user to run code in user_rf_pre_init
  • Add strtoul and strtol, fix strtod
  • Update documentation for NodeMCU and Olimex boards
  • Disable interrupts inside ESP.getVcc (#567)
  • Erase RTC RAM only if RF mode looks invalid (#619)
  • Get pin levels at time of interrupt, rather than the time of calling the handler.
  • Move interrupt handlers to ram.
  • Improve debug output on critical errors
  • Add ArduinoOTA library and docs
  • Add WeMos D1 & D1 mini boards
  • Add documentation about boot messages and mode meaning
  • Disable sleep mode before doing OTA (#1005)
  • Add the ability to be called back when the device is about to reset
  • Add "Reset Method" menu
  • Add MD5 to core
  • I2C: generate STOP in case of NACK (fix #698, #254)
  • Add libc time functions
  • Fix linker script for 512k(no SPIFFS) variant (#966)
  • I2S optimizations
  • Support Sketch > Export compiled binary
  • Update SPIFFS wrapper for 0.3.3
  • Fix placement of code into RAM, enable gc-sections
  • Make soft wdt reset more obvious
  • Force disable IOSWAP for UART0 in HardwareSerial initialization (#744)
  • Add IPAddress::toString()

Libraries

  • ESP8266WebServer: support for sending of PROGMEM strings
  • ESP8266WebServer: support for serving files from file system
  • ESP8266WiFi: fix mode selection (#529)
  • ESP8266mDNS: allow to work on SoftAP interface
  • EEPROM: round requested size to 4 bytes (#659)
  • Add ESP8266AVRISP library
  • Add ESP8266HTTPUpdate library
  • Add HTTPClient library
  • Add WiFiClientSecure
  • ESP8266WiFi library: add persistent option, fix #1054
  • Make RequestHandler handle uploads
  • Add Digest Authentication to OTA and espota.py
  • Don't close UDP pcbs when WiFi connection drops (#969)
  • Add espsoftwareserial library
  • Add HTTP Updater library
  • Add Ethernet library for W5100
  • Add SPIFFS WebServer Example
  • add dnsIP() to ESP8266WiFi class
  • OTA support encapsulated to ArduinoOTA class
  • Add gdb stub library
  • Extracted the WebUpdate example into a library.
  • Fix to Servo allowing write() to be called before attach()
  • ESP8266WiFi: add function begin without any parameters and add psk function to return current PSK form sdk config
  • Fix a crash due to abort() called from TCP error callback (#428)
  • Adding support for OPTIONS requests to ESP8266WebServer
  • Add HTTPS request sample (#43)
  • Fix _useClientMode & _useApMode in SDK auto connect mode (#754)
  • Add ESP8266WebServer::sendContent_P with 'size_t size' argument for binary content
  • Fix bug in WiFiClient::write_P when content was binary
  • Add WiFiClient::write_P to be used with PROGMEM

Tools

  • Update SDK to 1.3.0_15_08_10_p1
  • Update esptool to 0.4.6
  • Bump toolchain version to force libm update on Windows
  • ESP8266FS tool update

1.6.5-947-g39819f0

July 23, 2015

Package link: http://arduino.esp8266.com/versions/1.6.5-947-g39819f0/package_esp8266com_index.json.

Core

  • I2C library updated to better handle repeated start for certain devices, improved waveforms, higher frequencies for 160MHz core clock, fix case where using different pins would not work with libs calling begin internally.
  • Add Adafruit HUZZAH board
  • Add SparkFun Thing board
  • Add SweetPea ESP-210 board
  • Add eboot bootloader
  • Timer0 support
  • Add PWM range and frequency control
  • Add ESP.eraseConfig method
  • Fix pin change interrupt handling (#322)
  • Add SLC and I2S register definitions
  • Fix math functions calling themselves recursively (#233, #354)
  • Print stack on exception and soft WDT reset
  • Add Updater class
  • Remove implementations of WDT-related functions
  • Provide selection between A0 and VCC (#443, #338)

Libraries

  • ESP8266WebServer: add gzip streaming, fix sendContent behaviour, add setContentSize method.
  • ESP8266WiFi: add BSSID, channel, isHidden methods, fix AP/STA mode selection (#28).
  • Better handling of WiFi disconnect (#231)
  • Add API to set the beginning of local ports range for WiFiClient.
  • Add RSSI function
  • Add function to get the MAC / BSSID as String
  • Servo library support
  • Add ESP8266WiFiMesh library
  • Add ESP8266SSDP library
  • Add DNS-SD support to ESP8266mDNS library

Tools

  • Update SDK to v1.2.0_15_07_03
  • Better sketch size reporting (#314)
  • Update esptool to 0.4.5

1.6.4-673-g8cd3697

May 22, 2015

Package link: http://arduino.esp8266.com/versions/1.6.4-673-g8cd3697/package_esp8266com_index.json.

Tools

  • Add 32-bit Linux toolchain.
  • Rebuild toolchain and esptool with support for OS X down to 10.6.

Libraries

  • Better connection handling in ESP8266WebServer. The server now sends Content-Length and Connection: close headers, then waits for the client to disconnect. By not closing the connection actively, server avoids TIME_WAIT TCP state, and TCP stack is able to release the memory immediately, without waiting for 2xMSL period. If the client doesn't disconnect in 2000ms, the server closes the connection actively.
  • Add Hash library, which has a function to calculate SHA1 hash.
  • SD, Adafruit_ILI9341, and OneWire libraries are now bundled.
  • Fix incorrect sector calculation in EEPROM library.

1.6.4-628-g545ffde

May 19, 2015

  • Initial release of Boards Manager package for ESP8266 platform.