schedule transition to C++20 as default

ripley · ripley · commit 9f39ccf26d77 · 2026-01-15T15:32:50.000Z
git-svn-id: https://svn.r-project.org/R/trunk@89304 00db46b3-68df-0310-9c12-caf00c1e9a41
diff --git a/doc/NEWS.Rd b/doc/NEWS.Rd
@@ -226,9 +226,10 @@
       others depending on them.  (Packages can request C++17 if
       essential.)
 
-      For now this can be selected by configuring \R{} with
-      \option{--with-CXX20}: it is planned that this will become the
-      default before release.
+      For now this default can be selected by configuring \R{} with
+      \option{--with-CXX20}: the changeover is scheduled for
+      2026-02-08.  For ways to test a package with C++20, see
+      \url{https://www.stats.ox.ac.uk/pub/bdr/C++20/README.txt}.
     }
   }
 

Original file line number	Diff line number	Diff line change
`@@ -226,9 +226,10 @@`
`226`	`226`	`others depending on them. (Packages can request C++17 if`
`227`	`227`	`essential.)`
`228`	`228`
`229`		`- For now this can be selected by configuring \R{} with`
`230`		`- \option{--with-CXX20}: it is planned that this will become the`
`231`		`- default before release.`
	`229`	`+ For now this default can be selected by configuring \R{} with`
	`230`	`+ \option{--with-CXX20}: the changeover is scheduled for`
	`231`	`+ 2026-02-08. For ways to test a package with C++20, see`
	`232`	`+ \url{https://www.stats.ox.ac.uk/pub/bdr/C++20/README.txt}.`
`232`	`233`	`}`
`233`	`234`	`}`
`234`	`235`