gtk: Re-export v4.18 feature

Author: bilelmoussaoui

gtk4/Cargo.toml

@@ -25,6 +25,7 @@ v4_10 = ["gtk4-sys/v4_10", "v4_8", "gdk/v4_10", "gsk/v4_10"]
 v4_12 = ["gtk4-sys/v4_12", "v4_10", "gdk/v4_12"]
 v4_14 = ["gtk4-sys/v4_14", "v4_12", "gdk/v4_14", "gsk/v4_14"]
 v4_16 = ["gtk4-sys/v4_16", "v4_14", "gdk/v4_16", "gsk/v4_16"]
+v4_18 = ["gtk4-sys/v4_18", "v4_16"]
 gio_v2_80 = ["gio/v2_80"]
 xml_validation = ["gtk4-macros/xml_validation"]
 blueprint = ["gtk4-macros/blueprint"]

gtk4/README.md

@@ -182,6 +182,7 @@ gtk = { git = "https://github.com/gtk-rs/gtk4-rs.git", package = "gtk4" }
 
 | Feature | Description |
 | ---     | ----------- |
+| `v4_18` | Enable the new APIs part of GTK 4.18 |
 | `v4_16` | Enable the new APIs part of GTK 4.16 |
 | `v4_14` | Enable the new APIs part of GTK 4.14 |
 | `v4_12` | Enable the new APIs part of GTK 4.12 |