chore: bump to 3.21

Signed-off-by: Rudi Grinberg <[email protected]>

<!-- ps-id: 4267c57e-dcfa-495e-bc17-4ef8533b1cdd -->

Signed-off-by: Rudi Grinberg <[email protected]>

Author: rgrinberg

doc/coq.rst

@@ -456,7 +456,7 @@ lang<coq-lang>` stanza present:
 
 .. code:: dune
 
-  (lang dune 3.20)
+  (lang dune 3.21)
   (using coq 0.8)
 
 Next we need a :doc:`/reference/dune/index` file with a :ref:`coq-theory`
@@ -687,7 +687,7 @@ the plugin to sit in, otherwise Coq will not be able to find it.
 
 .. code:: dune
 
-  (lang dune 3.20)
+  (lang dune 3.21)
   (using coq 0.8)
 
   (package

doc/foreign-code.rst

@@ -103,7 +103,7 @@ file:
 
 .. code:: dune
 
-  (lang dune 3.20)
+  (lang dune 3.21)
   (using ctypes 0.3)
 
 

doc/hacking.rst

@@ -286,7 +286,7 @@ Such languages must be enabled in the ``dune`` project file separately:
 
 .. code:: dune
 
-   (lang dune 3.20)
+   (lang dune 3.21)
    (using coq 0.8)
 
 If such extensions are experimental, it's recommended that they pass

doc/instrumentation.rst

@@ -96,14 +96,14 @@ To enable an instrumentation backend globally, type the following in your
 
 .. code:: dune
 
-   (lang dune 3.20)
+   (lang dune 3.21)
    (instrument_with bisect_ppx)
 
 or for each context individually:
 
 .. code:: dune
 
-   (lang dune 3.20)
+   (lang dune 3.21)
    (context default)
    (context (default (name coverage) (instrument_with bisect_ppx)))
    (context (default (name profiling) (instrument_with landmarks)))

doc/melange.rst

@@ -42,7 +42,7 @@ is enabled:
 
 .. code:: dune
 
-  (lang dune 3.20)
+  (lang dune 3.21)
   (using melange 0.1)
 
 Next, write a :doc:`/reference/dune/index` file with a

doc/sites.rst

@@ -34,7 +34,7 @@ will be installed as a sub-directory.
 
 .. code:: dune
 
-   (lang dune 3.20)
+   (lang dune 3.21)
    (using dune_site 0.1)
    (name mygui)
 
@@ -245,7 +245,7 @@ Main Executable (C)
 
 .. code:: dune
 
-  (lang dune 3.20)
+  (lang dune 3.21)
   (using dune_site 0.1)
   (name app)
 
@@ -305,7 +305,7 @@ The Plugin "plugin1"
 
 .. code:: dune
 
-  (lang dune 3.20)
+  (lang dune 3.21)
   (using dune_site 0.1)
 
   (generate_opam_files true)

otherlibs/dune-rpc/private/types.ml

@@ -27,7 +27,7 @@ end
 module Version = struct
   type t = int * int
 
-  let latest = 3, 20
+  let latest = 3, 21
 
   let sexp : t Conv.value =
     let open Conv in

test/blackbox-tests/test-cases/dune-init.t/run.t

@@ -495,7 +495,7 @@ And the opam file will be generated as expected
   doc: "https://url/to/documentation"
   bug-reports: "https://github.com/username/reponame/issues"
   depends: [
-    "dune" {>= "3.20"}
+    "dune" {>= "3.21"}
     "ocaml"
     "odoc" {with-doc}
   ]