Release 3.9

Hello miners!

As you can see, this is the last update before we drop a major 4.0 release. This is also the last release with separate ESP8266 and ESP32 codes that require you to install old library versions.
Theoretically could've just skipped this one, but there have been quite a few changes (eg. fixing compilation errors on Linux systems) that had to be adressed.

This is not a mandatory update, but staying up-to-date is always suggested.

What's new, what's changed...

• Fixed a bug with Arduino Code on *nix systems by @trazfr in #1677
• Fixed a bug with URL encoding in the PC Miner by @matteocrippa in #1683
• Fixed a bug with auto-updater by @umikali222 in #1649
• Added Vietnamese translation by @MinatoIsuki in #1650
• Added policy links to README by @Tech1k in #1663
• Updated ToS and privacy policy by @EinWildesPanda in #1647
• Updated german translations by @EinWildesPanda in #1648
• Updated Vietnamese translation by @MinatoIsuki in #1654
• Updated French README by @TheFrenchTechMan in #1652
• Updated Portuguese translation by @fatorius in #1668
• Updated project maintainers info by @Tech1k in #1687
• Updated README.md by @revoxhere in #1704

New contributors - hello! 👋

• @umikali222 made their first contribution in #1649
• @MinatoIsuki made their first contribution in #1650
• @fatorius made their first contribution in #1668
• @trazfr made their first contribution in #1677
• @matteocrippa made their first contribution in #1683

⚠️ NOTICE: .exe binaries may be detected as a virus by your antivirus software. This is a false positive caused by pyinstallers bootloader, read about it here. Duino-Coin is not a virus.

Full Changelog: 3.5...3.9
As always, please report any encountered issues. Happy mining!