Preparation for Release 5.2.0

[slaff]

This issue is created to collect all the tasks we need to do before the 5.2 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

• Add support for ESP32 IDF version 5.2 (beta) #2694
• Add clang-tidy support for static code analysis #2648
• Support native 64-bit host builds #2823
• Add Host MacOS support #2804
• Initial version of editor for Graphics library #2826
• Support Esp8266 PHY settings runtime modification #2830
• Support host builds using clang toolchain #2798

Improvements

• Improve sample applications #2756
• Upgrade toolchains #2787
• Update littlefs from 2.4.0 -> 2.9.3 #2777
• Use physical serial port if present on WSL2 #2790
• Update Esp8266 lwip2 to upstream master #2793
• Change SparkFun_APDS9960 to submodule #2800
• Update Adafruit_GFX library #2799
• Improve FlashString portability #2796
• Update ArduinoJson6 to current 6.x release #2795
• Provide better implementation for FileStream::id() #2705
• Only esp8266 requires special handling for _F() #2699
• Fix HttpUpgrader duplicate stream de-allocation #2722
• TcpClient does not send incomplete packets. #2721
• Improvements to OtaNetwork Http upgrader #2725
• PartitionStream requires blockErase, other OTA-related improvements #2729
• Use std::make_unique #2736
• Update USB library #2737
• Provide consistent serial console interface for samples #2739
• Improve CommandProcessing library #2748
• Improve Vector and HttpHeaders iteration #2745
• Free some esp8266 RAM #2752
• Improve sample applications #2756
• Optimise FlashString iteration and indexing #2761
• Fixes to hardware config editing/display #2765
• A few DateTime tweaks #2767
• Improvements to HostEd #2768
• Make time_t size check message more helpful #2769
• SMTP Client improvements. #2802
• Update ESP32 BLE libraries, apply fixes #2847
• Extend CsvReader capabilities, move into new library #2805
• Fix delayed sending of websocket messages #2782
• Improvements to HostEd #2768
• Free some esp8266 RAM #2752
• Move CommandProcessing into Libraries #2740

Bug fixes

• Fix WSL2 physical ports for esptool #2791
• Update host lwip to current master (2.2.x) #2814
• esp8266: NMI not disabled when timer1 ISR cleared #2764
• Fix potential memory leak in TcpClient::send #2753
• Fix client Websockets (broken) #2749
• Bugfix: stale HTTP connections may get missed in cleanup #2741
• Fix esp32c3 FPU issues #2700
• Fix esp32 timer issues #2697
• Fix hw_timer1_read() for esp32 #2701
• Fix build error for IDF 5.0 #2703
• Fix bluetooth build with esp32s3 for latest IDF 4.4 #2708
• Fix esp8266 timer1 testing #2709
• Add note in documentation about behaviour of one-shot Hardware timer with Esp8266 #2713
• Fix Adafruit_GFX writeColor implementation for ESP32 #2712
• Fix Esp32 hardware timer callbacks #2716
• Fix esp32 IDF version number handling for patch releases #2707
• Fix mechanism for OTA upgrade from Sming 4.2 #2728
• Fix esp8266 bootloader building and add diagnostic tools #2734
• Fix crashing rboot #2738
• Fix building lwip2 with ENABLE_LWIPDEBUG=1 #2754
• Fixes to Url default handling and query parameters #2828
• Fix potential memory leak in TcpClient::send #2753

Changes

• Set ESP32 CONFIG_FREERTOS_UNICORE=y by default #2696

Deprecations

• Remove appveyor compatibility. #2831
• Remove legacy esp8266 toolchain support #2794

Breaking Changes

Security

All PRs scheduled for this release can be seen from here