Preparation for Release 4.3.0

[slaff]

This issue is created to collect all the tasks we need to do before the 4.3.0 release.

Source Code

• Update Sming/Core/SmingVersion.h.
• Update Readme.md.
• Merge develop into master.
• Tag the source code in the master branch.
• Add upgrade document

New features

• Partition tables Partition tables #2171 with rBoot support Add rBoot partition support #2258
• Installable File System (IFS) Installable File System #1579
• Added protocol buffers support using nanopb. Add protocol buffers support using nanopb. #2217, Add wrapper classes to support nanopb #2233
• Provide LinkedObject for general use Provide LinkedObject for general use #2234
• Google-cast client Initial code for google-cast client #2227
• Updated mDNS library with query support Update MDNS library with query support #2237
• Added hardware configuration option support Add hardware configuration option support #2266
• Added rBoot partition support Add rBoot partition support #2258
• Added graphical hardware profile editor Add graphical hardware profile editor #2274
• Library support for flatbuffers Library support for flatbuffers #2252
• Faster Over-The-Air upgrades via MQTT Firmware update via MQTT #2269
• Added support for repeated HTTP header fields Add support for repeated HTTP header fields #2290

Improvements

• Improved FTP server Update directory enumeration and FTP server #2271
• Revise install scripts and documentation Revise install scripts and documentation #2204
• MacOS build fixes MacOS build fixes #2212
• Added web test support to HostTests CI application Add web test support to HostTests CI application #2228
• Added vscode configuration support Add vscode configuration support #2231
• Updated bearssl to its latest version. Updated bearssl to its latest version. #2240
• Added setMacAddress() method to Station and AccessPoint Add setMacAddress() method to Station and AccessPoint #2249
• Rewrote MDNS responder Rewrite MDNS responder #2248
• Easier voltage reading for ESP8266. Easier voltage reading for ESP8266. #2264
• Updated ArduinoFFT library to latest Update ArduinoFFT library to latest, fix patch filename #2285
• MultiStream & StreamTransformer improvements MultiStream & StreamTransformer improvements #2288
• Sming Host Emulator: Allow control over host debug messages Allow control over host debug messages #2289

Bug fixes

• Fix bug in smg_uart_set_tx() Fix bug in smg_uart_set_tx() #2210
• Replaced toString(uint8_t) with template to avoid unintentional truncation of values Replace toString(uint8_t) with template to avoid unintentional truncation of values #2229
• Multiple minor fixes to documentation and samples Multiple minor fixes to documentation and samples #2239
• Python 3 migration: Replaced SimpleHTTPServer with http.server Replace SimpleHTTPServer with http.server #2244
• ScreenOLED_SSD1306 sample compiles also with newer compilers ScreenOLED_SSD1306 sample fails to build #2256 #2259
• Fixed publishing MQTT messages having a stream as payload. Fixed publishing MQTT messages having a stream as payload. #2278
• Compilation fixes for ESP8266 EQT toolchain. Compilation fixes for ESP8266 EQT toolchain. #2287
• Fixed SMTP issues Fix SMTP issues #2280

Breaking Changes

• Feature: mqtt connection error event Feature: mqtt connection error event #2279
  The connection event handler will be called also when the connection failed. You can use the return_code to check if the connection was successful or there was an error.
• Upgraded to clang-format 8 Upgrade to clang-format 8 #2268 for coding style.

Security

• Base64 size calculations wrong Base64 size calculations wrong #2283

All PRs scheduled for this release can be seen from here