Annouce clad v1.9

Author: vgvassilev

_data/releases.yml

@@ -1,3 +1,15 @@
+- date: 2025-02-10
+  codebase: "Clad"
+  version: "v1.9"
+  description: |
+    This release introduces significant enhancements, including improved
+    differentiation support for complex expressions, optimized forward and
+    reverse mode handling, and experimental CUDA kernel differentiation.
+    The release also brings better broader compatibility with Clang versions 9
+    through 19. Various performance optimizations, documentation improvements,
+    and critical bug fixes further refine the plugin’s reliability and usability.
+  link: "https://github.com/vgvassilev/clad/releases/tag/v1.9"
+
 - date: 2024-12-25
   codebase: "CppInterOp"
   version: "v1.5.0"