Update README.md

Author: nspyrop03

llvm/README.md

@@ -14,7 +14,7 @@ The IR is written to **stdout**, so it can be redirected into a `.ll` file and t
 ## Prerequisites
 
 * The **semantic analyzer** must be built first (LLVM IR generation depends on its AST).
-* **LLVM 14** or later (tested with LLVM 14).
+* **LLVM 14** (tested with the default package on Debian 12. Later LLVM versions introduce header and function name changes that can cause incompatibility).
 * **clang** (for assembling IR and linking the runtime library).
 * **make**, **flex**, **bison**, and a C++17 compiler.
 
@@ -147,7 +147,7 @@ The script:
 
 ## Tips & Troubleshooting
 
-* Ensure **LLVM 14+** and **clang** are installed and available in `$PATH`.
+* Ensure **LLVM 14** and **clang** are installed and available in `$PATH`.
 * The runtime library `libdanart.a` must be present in the same directory or linked with `-L` and `-l` options.
 * If the `libdanart.a` is deleted you can restore it by running 
   ```
@@ -157,4 +157,4 @@ The script:
 * If compilation fails with `target triple` issues, verify that your LLVM and clang versions match your system architecture.
 * IR is printed to **stdout** (using `danac`) — don’t forget to redirect (`>`) to capture it in a file.
 
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