PIC18F Bootloader - any recommendations?

[voltsandjolts]

Using PIC18F for first time in a one off* project (18F46K40), so I'm just finding my way around.
XC8 looks reasonably solid.

I see the Microchip MCC can generate a bootloader but I haven't tried it yet - should I pursue this or is there something better out there?

Edit:
* When I say one off, I mean one design but hundreds of boards.

[Ian.M]

Don't bother for a one-off unless its going to be difficult to get to the board with an ICSP lead.  A bootloader introduces unnecessary complexity, and unless carefully implemented, can significantly decrease reliability.  Also keeping the matching PC app current so it runs on new OS versions is a PITA. 

[voltsandjolts]

Wise words indeed but unfortunately mechanical assembly and client dictate requirement for in situ firmware updates over UART.

[jaromir]

There was exactly one occasion when I needed generic UART bootloader in my project (though I wrote at least dozen of application-specific FLASH loaders for PIC devices), I used this one https://picbootloader.com/ for PIC18F2420. Not sure how much work is needed to port it to 'K40, but it will not be probably very complicated task.

[voltsandjolts]

Thanks, I'll look into that.
I see the same guy has https://www.ds30loader.com which offers commercial support.

[jc101]

Thanks, I'll look into that.
I see the same guy has https://www.ds30loader.com which offers commercial support.

That chap does indeed offer great support for his boot loaders, I'd recommend them if you didn't want to roll your own.