Firmware Release v1.20.2

[peterp]

Dear Pycom community!

We're happy to announce the release of stable version 1.20.2

The most important changes are:

• Add support for EU433 region
• Pybytes 1.5.1
• Improve support for different firmware "types" (Pybytes, Pymesh, Pygate)
• LTE: add PSM Power Saving Mode
• IDF recompiled with v98 compiler
• Ctrl-D works if pybytes is disabled (pycom.pybytes_on_boot(False))
• update.py supports additional pybytes options
• Sigfox: finalizing certification RCZ1, 2, 4
• BLE: Allow static passwords, remove bonded when pin changes
• Support Sigfox registration for Pybytes
• MDNS advertisement works
• Adding libmdns.a to esp32/lib
• Adding scripts for PyJTAG and short Readme
• BLE characteristic update messages are lost if they sent too frequently
• add bands=() parameter to lte.attach()
• PYFW-391: Add changes needed for esp-idf v3.3.1
• bugfixes

Functionally this is the same as the last Release Candidate 1.20.2.rc10. As usual, you can

• install this update with the Firmware Updater
• find the source code in branches v1.20 and Dev
• download the firmware packages (.tar.gz) the docs
• and find the .elf files in the github release