Release 1.8.14

IDE

• Fix status bar custom board preferences disappearing (thanks @magedrifaat)
• Boards Manager bugfix: sometimes the "Install" button appeared instead of "Update" after entering a search term.
• Libraries/Boards Manager: the Type and Category filters are kept after install/uninstall.
• Added 'deprecated' label support in Boards Manager, platforms marked as deprecated are shown at the bottom of the list.
• Serial Plotter: line endings dropdown menu now comply with the global preference settings. (thanks @sceniclife)
• Libraries Manager: Maintainer is displayed instead of the Author.
• Firmware Updater: Added new firmwares and support for Nano RP2040 Connect.
• Boards Manager: cached 3rd party package_index.json are no more deleted if the origin URL is removed from preferences, this allows other tools (like arduino-cli), that may have different URLs configuration, to work properly.
• The board configuration submenus are now scrollable.
• New shortcut: Shift+click on Serial Monitor button will open the Serial Plotter. (thanks @n-elia)
• Fixed NPE if no board is selected. (thanks @matthijskooijman)

arduino-builder

• Improved lib detection: check for matching name in library.properties
• Fix compile if invalid build.options.json is found (thanks @d-a-v)
• Improved error messages for .cpp/.h file in the sketch