To install the Vivado Y2K22 patch (version 1.2), you need to extract the update files into your Xilinx installation root and run a Python-based script. This patch fixes a critical "revision number overflow" bug that prevents IP export after January 1, 2022. Prerequisites
Python Requirement: You must have Python 2.7.5 or later installed.
Version Compatibility: This single patch applies to all installed Xilinx versions in the same base directory (e.g., Vivado 2014.x through 2021.2). Installation Steps
Download the Patch:Obtain the y2k22_patch-1.2.zip file from the official AMD-Xilinx Support Article.
Extract the Archive:Extract the contents directly into your Xilinx installation root. Windows: Usually C:\Xilinx. Linux: Usually /tools/Xilinx or /opt/Xilinx.
Important: Ensure the extraction does not create a subfolder with the zip file's name; the y2k22_patch folder should sit directly inside your root (e.g., C:\Xilinx\y2k22_patch).
Run the Patch Script:Open a terminal or command prompt, navigate to your Xilinx root, and execute the Python script. On Linux: cd /tools/Xilinx python y2k22_patch/patch.py Use code with caution. Copied to clipboard On Windows: cd C:\Xilinx python y2k22_patch\patch.py Use code with caution. Copied to clipboard Troubleshooting & Linux Notes
Library Errors: If you encounter libpython errors on Linux, you may need to install libpython3.8-dev and export the library path from your Vivado installation's internal Python directory:export LD_LIBRARY_PATH=$PWD/Vivado/
Update Persistence: Once applied, the patch does not need to be re-applied for minor release updates (e.g., updating from 2021.1 to 2021.1.1). vivado y2k22 patch install
The Vivado Y2K22 patch (Answer Record 76960) is a critical update for AMD/Xilinx tools to resolve a "Revision Number Overflow" bug that began on January 1, 2022. This overflow occurs because HLS (High-Level Synthesis) tools use a date-based versioning format (YYMMDDHHMM) which exceeded the limit of a 32-bit signed integer in the year 2022. Patch Overview
Target Issue: Errors such as bad lexical cast or invalid argument when running export_design or export_ip.
Affected Versions: All versions of Vivado HLS and Vitis HLS from 2014.x through 2021.2.
Fix Mechanism: A Python script that adds a custom Tcl file (automg_patch_20220104.tcl) to the tool's internal script directories to bypass the overflow. Installation Instructions 1. Prerequisites
Python: Version 2.7.5 or later is required. Tools from 2019.x onwards include a built-in Python that can be used.
Patch File: Download y2k22_patch-1.2.zip from the AMD Support Portal. 2. Directory Preparation
Extract the .zip file directly into your Xilinx installation root.
Windows Default: C:\Xilinx (resulting in C:\Xilinx\y2k22_patch). Linux Default: /tools/Xilinx or /opt/Xilinx. To install the Vivado Y2K22 patch (version 1
Warning: Ensure the extraction does not create a double folder layer (e.g., avoid C:\Xilinx\y2k22_patch-1.2\y2k22_patch). 3. Execution
Run the script from the base installation directory, not from inside the patch folder.
Windows:Open a command prompt and run:python y2k22_patch\patch.py
Linux:Open a terminal and run (may require sudo depending on permissions):python3 y2k22_patch/patch.py 4. Verification
After a successful run, verify that automg_patch_20220104.tcl has been copied to:
OS Support: Some users on older Ubuntu versions (e.g., 16.04) reported the patch failing to resolve "Launch HLS failed" errors; AMD recommends using supported OS versions like Ubuntu 20.04.
Python 3 Compatibility: On Linux, if using newer Vivado versions (2020.x+), ensure libpython3.8-dev is installed and the LD_LIBRARY_PATH is set correctly if the script fails to find dependencies.
Updates: If you install a minor release update (e.g., 2021.1.1) after applying the patch to the base version (2021.1), you typically do not need to re-apply it. Windows : Disable internet time sync, set date
Since the Y2K22 patch for Vivado involves fixing a date-checking bug that prevents the tool from launching after January 1, 2022, the "good feature" you are likely looking for is how to install it without having to reinstall the entire massive Vivado suite.
Here is a guide on the Patch Installation Process, specifically focusing on the command-line method, which is the most reliable way to apply this fix.
The turn of the century brought with it concerns about the Y2K bug, a problem that arose because many computer systems and software used only two digits to represent the year, potentially causing widespread system failures when the year 2000 arrived. Although the issue was largely mitigated, similar concerns arise with the arrival of the year 2022, particularly with older systems and software. The Vivado Y2K22 patch is specifically designed to address these concerns, ensuring that designs created with Vivado do not encounter issues related to date and time handling.
Ensure Vivado, Vitis, SDK, Hardware Server, and any Xilinx license managers are fully closed. On Windows, check Task Manager for processes like vivado.exe, xsct.exe, xilinx-d.exe.
Set system date to 2021 before launching Vivado (temporary, not recommended for production):
Linux:
sudo date -s "2021-12-31 12:00:00"
vivado
# Reset after: sudo date -s "2025-01-01 12:00:00"
Windows: Disable internet time sync, set date manually to Dec 2021, launch Vivado, then re-enable.
Download the archive and extract it to a temporary location on your drive.
y2k22_patch_setup.exe on Windows).