Hi Arno, 

You can find pretty much everything in mega manual https://www.yoctoproject.org/docs/current/mega-manual/mega-manual.html#extendpoky 
Yocto uses layers to override recipes, so there's nothing wrong to use newer version in yours. 

Regards,
Vincent

2018-04-09 12:17 GMT+02:00 Arno Steffens <epsi@gmx.de>:
Can you please help me?
For one or 2 packages I need newer sources than available via yocto. Is there a guide what and how I have to modify (or better copy, modify and add???) a recipe where the only change is a newer source code release? I am aware that this can create trouble, but sometimes I need a bugfix that it is only in recent versions available.
Thank you
Arno
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