From c318e1fbc87cfb46e6182bd5b28742547b2e495e Mon Sep 17 00:00:00 2001
From: Daniel Kimmich <json-derulo@users.noreply.github.com>
Date: Fri, 18 Jul 2025 22:37:22 +0200
Subject: [PATCH] docs: update README to specify TypeScript lib requirement

---
 README.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/README.md b/README.md
index 7e7e0717..8f2f7453 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,11 @@ Install the package:
 npm install angular-ecmascript-intl --save
 ```
 
+This package requires TypeScript with a lib setting of ES2021 or later.
+Older lib targets (e.g., ES2020 or below) are not supported and may cause
+type errors or missing type definitions. Make sure your `tsconfig.json` includes
+`"lib": ["ES2021"]` (or a newer standard such as ES2022) to ensure full compatibility.
+
 Import the pipes individually as per usage, or import the `IntlModule` to import all pipes at once.
 
 By default, all pipes will use the browser default locale.