diff --git a/modules/misc/news/2026/04/2026-04-01_22-28-19.nix b/modules/misc/news/2026/04/2026-04-01_22-28-19.nix
new file mode 100644
index 000000000..28510fc3c
--- /dev/null
+++ b/modules/misc/news/2026/04/2026-04-01_22-28-19.nix
@@ -0,0 +1,41 @@
+{ config, pkgs, ... }:
+{
+  time = "2026-04-01T20:28:19+00:00";
+  condition = config.programs.neovim.enable;
+  # if behavior changed, explain how to restore previous behavior.
+  message = ''
+    We are changing neovim plugin "config" default type from `viml` to `lua`.
+
+    When the option was introduced neovim lua support was not as popular or robust as in 0.12.
+    Lua configuration seems to be the most popular these days so starting from 26.05, neovim default
+    plugin "config" is assumed to be written as lua instead of viml.
+
+    You may see the following warning:
+
+    evaluation warning: The default value of `programs.neovim.plugins.PLUGIN.type` has changed from `"viml"` to `"lua"`.
+                    You are currently using the legacy default (`"viml"`) because `home.stateVersion` is less than "26.05".
+                    To silence this warning and keep legacy behavior, set:
+                      programs.neovim.plugins.PLUGIN.type = "viml";
+                    To adopt the new default behavior, set:
+                      programs.neovim.plugins.PLUGIN.type = "lua";
+
+    which can be triggered for instance by:
+
+      programs.neovim.plugins = [
+          { plugin = vimPlugins.fugitive-vim; }
+      ];
+
+    Fix it with:
+
+      programs.neovim.plugins = [
+          { plugin = vimPlugins.fugitive-vim; type = "viml"; }
+      ];
+
+    or
+
+      programs.neovim.plugins = [
+          vimPlugins.fugitive-vim
+      ];
+
+  '';
+}
diff --git a/modules/programs/neovim.nix b/modules/programs/neovim.nix
index c66e71ba3..5d7556596 100644
--- a/modules/programs/neovim.nix
+++ b/modules/programs/neovim.nix
@@ -282,7 +282,23 @@ in
                   "fennel"
                 ]) types.str;
                 description = "Language used in config. Configurations are aggregated per-language.";
-                default = "viml";
+                inherit
+                  (lib.hm.deprecations.mkStateVersionOptionDefault {
+                    inherit (config.home) stateVersion;
+                    optionPath = [
+                      "programs"
+                      "neovim"
+                      "plugins"
+                      "PLUGIN"
+                      "type"
+                    ];
+                    since = "26.05";
+                    legacy.value = "viml";
+                    current.value = "lua";
+                  })
+                  default
+                  defaultText
+                  ;
               };
 
               optional = mkEnableOption "optional" // {