···

       
1
       
 
       
# Expose the minimum required version for evaluating Nixpkgs

     

       
2
       
-
       
"2.2"

     

···

       
1
       
 
       
# Expose the minimum required version for evaluating Nixpkgs

     

       
2
       
+
       
"2.3"

     

···

       
257
       
 
       
    <itemizedlist>

     

       
258
       
 
       
      <listitem>

     

       
259
       
 
       
        <para>

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
260
       
 
       
          The <literal>isCompatible</literal> predicate checking CPU

     

       
261
       
 
       
          compatibility is no longer exposed by the platform sets

     

       
262
       
 
       
          generated using <literal>lib.systems.elaborate</literal>. In

     

···

       
257
       
 
       
    <itemizedlist>

     

       
258
       
 
       
      <listitem>

     

       
259
       
 
       
        <para>

     

       
260
       
+
       
          Nixpkgs now requires Nix 2.3 or newer.

     

       
261
       
+
       
        </para>

     

       
262
       
+
       
      </listitem>

     

       
263
       
+
       
      <listitem>

     

       
264
       
+
       
        <para>

     

       
265
       
 
       
          The <literal>isCompatible</literal> predicate checking CPU

     

       
266
       
 
       
          compatibility is no longer exposed by the platform sets

     

       
267
       
 
       
          generated using <literal>lib.systems.elaborate</literal>. In

     

···

       
94
       
 
       


     

       
95
       
 
       
## Backward Incompatibilities {#sec-release-22.11-incompatibilities}

     

       
96
       
 
       


     

       
0
       
 
       

     

       
0
       
 
       

     

       
97
       
 
       
- The `isCompatible` predicate checking CPU compatibility is no longer exposed

     

       
98
       
 
       
  by the platform sets generated using `lib.systems.elaborate`. In most cases

     

       
99
       
 
       
  you will want to use the new `canExecute` predicate instead which also

     

···

       
94
       
 
       


     

       
95
       
 
       
## Backward Incompatibilities {#sec-release-22.11-incompatibilities}

     

       
96
       
 
       


     

       
97
       
+
       
- Nixpkgs now requires Nix 2.3 or newer.

     

       
98
       
+
       


     

       
99
       
 
       
- The `isCompatible` predicate checking CPU compatibility is no longer exposed

     

       
100
       
 
       
  by the platform sets generated using `lib.systems.elaborate`. In most cases

     

       
101
       
 
       
  you will want to use the new `canExecute` predicate instead which also

     

···

       
4
       
 
       


     

       
5
       
 
       
{ url ? builtins.head urls

     

       
6
       
 
       
, urls ? []

     

       
7
       
-
       
, sha256

     

       
0
       
 
       

     

       
8
       
 
       
, name ? baseNameOf (toString url)

     

       
9
       
 
       
}:

     

       
10
       
 
       


     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
11
       
 
       
import <nix/fetchurl.nix> {

     

       
12
       
-
       
  inherit system sha256 name;

     

       
13
       
 
       


     

       
14
       
 
       
  url =

     

       
15
       
 
       
    # Handle mirror:// URIs. Since <nix/fetchurl.nix> currently

     

···

       
4
       
 
       


     

       
5
       
 
       
{ url ? builtins.head urls

     

       
6
       
 
       
, urls ? []

     

       
7
       
+
       
, sha256 ? ""

     

       
8
       
+
       
, hash ? ""

     

       
9
       
 
       
, name ? baseNameOf (toString url)

     

       
10
       
 
       
}:

     

       
11
       
 
       


     

       
12
       
+
       
# assert exactly one hash is set

     

       
13
       
+
       
assert hash != "" || sha256 != "";

     

       
14
       
+
       
assert hash != "" -> sha256 == "";

     

       
15
       
+
       


     

       
16
       
 
       
import <nix/fetchurl.nix> {

     

       
17
       
+
       
  inherit system hash sha256 name;

     

       
18
       
 
       


     

       
19
       
 
       
  url =

     

       
20
       
 
       
    # Handle mirror:// URIs. Since <nix/fetchurl.nix> currently