racket/pkgs/racket-doc/scribblings/getting-started/upgrading.scrbl

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Racket

#lang scribble/manual
@title{Upgrading from earlier 6.x and 7.x versions of Racket}
@section{Linux}
@itemlist[
@item{Download the newer release from @url{https://download.racket-lang.org/}.}
@item{@code{chmod +x racket-X.Y-PLATFORM.sh}}
@item{@code{./racket-X.Y-PLATFORM.sh} and answer the questions to choose where the new version should be installed.}
@item{@code{raco pkg migrate}
@item{@code{raco setup}}]
Note that in order to preserve the DrRacket preferences, it is currently necessary to manually copy the old Racket configuration folder to the new one (these folders can be @code{~/.racket/RACKET_VERSION} or @code{~/.racket/snapshot} for a nightly build).
@section{Upgrading from earlier versions}
If I'm not mistaken, @code{raco} was introduced at some point durign the 5.x series?