What is Patch Tuesday and why is it important?

Posted:
04/08/2025
| By:
Deepak Velayudhan

What is so special about the second Tuesday of every month in IT? Patch Tuesday is the day Microsoft and other leading tech companies release security updates and bug fixes.  

Managing patches takes time and requires resources. For managed service providers (MSPs) and IT departments, Patch Tuesday is a built-in checkpoint—a chance to apply critical fixes and updates to address vulnerabilities and keep systems secure. Since it happens on a set schedule, many IT professionals opt to mark it on their calendars and plan ahead. 

Some patches may be simple fixes, while others may be more in-depth updates. But the predictability of Patch Tuesday helps IT teams stay organized and keep critical fixes from slipping through the cracks.  

Key takeaways

  • Patch Tuesday began in 2003 when Microsoft decided to release fixes and updates on a consistent monthly schedule.  
  • The day has become an industry standard that supports greater efficiency, security, and compliance across IT environments. 
  • Planning for Patch Tuesday and following best practices for patch management helps IT prioritize critical security updates and protect against breaches and attacks. 
  • Software solutions streamline and enhance patch management with automation, centralized control, and reporting. 

When is Patch Tuesday?

While the exact date changes, Patch Tuesday always falls on the second Tuesday of the month. Microsoft and other tech companies use this day to release security updates, bug fixes, and sometimes new product features—all in one go.  

Microsoft’s Patch Tuesday fixes are usually released at 10 a.m. Pacific time. Other major software vendors, including Adobe and Oracle, have followed Microsoft’s example and also release updates on Patch Tuesday. This structured approach helps MSPs and internal IT teams alike maintain performance and security across a diverse range of products and applications. 

The history of Patch Tuesday

Microsoft Patch Tuesday didn’t happen by accident. Previously, patches and updates were released inconsistently, forcing IT teams to interrupt their schedules to address them. Then, in 2002, a series of critical security breaches damaged systems around the world, forcing action. While patches were available for some of these vulnerabilities, many organizations hadn’t implemented them in time, leaving them open to attacks. 

In the aftermath, Microsoft changed its approach to security. October 2003 marked the first official Patch Tuesday.The timing was carefully chosen: Releasing patches and updates early in the week gave administrators time to prepare for them and then address issues related to the patches before the end of the week. 

Over time, Patch Tuesday has become an industry standard, reinforcing a proactive security mindset. With many major tech companies following this model, IT techs are positioned to stay ahead of vulnerabilities and maintain optimal system performance.  

Why Patch Tuesday is important for cybersecurity

Because it’s been so effective, Patch Tuesday has become a critical part of organizational cybersecurity. IT teams can strengthen security and reduce the risk of data breaches for both clients and their own businesses by incorporating Patch Tuesday updates into their processes. 

Some of the Patch Tuesday benefits include: 

  • Consistent cadence. The monthly cadence enables IT teams to implement efficient workflows for patch deployment and ensure they have time to address any unexpected issues. 
  • Greater efficiency. Releasing multiple patches at the same time allows techs to quickly assess which patches address the most pressing vulnerabilities and apply them across all systems at once, rather than dealing with them individually 
  • Less risk of overlooking important updates. The structured release cycle means IT teams are less likely to miss or delay critical patches, ensuring timely updates across all managed systems. 
  • Reduced downtime. Knowing when updates will drop enables IT to plan implementation during nonpeak hours, minimizing disruptions to business operations if systems need to be offline or capacity will be affected. 
  • Simplified compliance. The regular nature of Patch Tuesday simplifies the process of tracking and documenting patch deployment. Organizations can generate reports showing the consistent application of updates. This helps IT teams meet industry regulations and cybersecurity insurance requirements for themselves and their clients. 
  • Less risk of zero-day vulnerabilities. A consistent schedule allows for more immediate patch implementation. This reduces the chances that hackers and cybercriminals will be able to exploit the vulnerabilities the patches fix—something explained in more detail in the next section. 

Patch Tuesday and Exploit Wednesday

An unintended consequence of Patch Tuesday is the rise of Exploit Wednesday. This refers to the phenomenon of cybercriminals attempting to identify the vulnerabilities the patches released on Tuesday are meant to fix. They then try to exploit them before IT teams can implement the updates.  

This puts IT teams under pressure to roll out updates quickly and efficiently. Automated patch management solutions help streamline the process, make sure patches are applied correctly, and quickly detect and resolve any deployment issues.  

Best practices for patch management

Patch Tuesday can feel like the floodgates opening as Microsoft and other vendors release a wave of security updates. Techs are left to sift through them to figure out what’s critical, what’s recommended, and what’s optional.  

Patch management best practices can help maintain security, reduce risk, and ensure business continuity for clients and end users. These guidelines can help ensure patches are deployed efficiently, effectively, and with minimal disruption. 

  • Build a formal patch management policy. Documentation and standardization ensure consistency. 
  • Create a workflow to manage patch releases. Define a step-by-step process for handling patches that includes assessment, testing, prioritization, deployment, and verification.
  • Ensure proper backups have been completed. Organizations should ensure systems and data are backed up before Patch Tuesday to minimize the damage in case of corruption from a patch installation. Offerings like ConnectWise’s NOC Services can also support here through providing patch testing.
  • Take advantage of patching resources. Microsoft’s Patch Tuesday bulletins, security newsletters, and community discussions can help IT teams stay ahead of potential issues. 
  • Prioritize patches based on risk. Focus first on critical security updates before moving to quality or feature updates. 
  • Test patches prior to deployment. Use a staging environment to test updates before rolling them out to production systems. 
  • Take advantage of patch automation. Leverage automation tools to schedule deployments, enforce policies, and reduce human error. 
  • Maintain an inventory of all assets. Keep an updated inventory of devices, operating systems, and software versions to ensure comprehensive coverage. 
  • Monitor and verify patch deployment. Track patch completion rates, troubleshoot failed updates, and ensure all systems are fully protected. 
  • Monitor privileged sessions. Keep logs and audit activity to prevent unauthorized actions during the process. 
  • Manage the identity lifecycle. Controlling and securing user and system identities, including ensuring proper provisioning and de-provisioning of accounts, minimizing risks. 

Looking for more detailed tips on how to transform Patch Tuesday from a potential headache into a strategic security advantage? Download our eBook Patch Management Best Practices. 

Where to find Patch Tuesday updates

The primary sources for Microsoft’s Patch Tuesday releases are Windows Update and Windows Server Update Services (WSUS). You can also check Microsoft’s official Security Update Guide. Other insights can be found in the Microsoft Tech Community and Windows release health dashboard. 

IT professionals should also subscribe to security updates and bulletins from ConnectWise, Adobe, Cisco, and other vendors of solutions in their own and their clients’ tech stacks. 

Managing Patch Tuesday with patch management solutions

With the right tools, IT teams can turn Patch Tuesday into more than a monthly security task. It can become an opportunity to showcase expertise and deliver exceptional service. 

Patch management solutions enable IT to: 

  • Prioritize according to organizational risks and vulnerabilities. An understanding of clients’ security postures ensures techs can apply critical patches first. 
  • Automate patch review, testing, and deployment. This streamlines patch management and frees up more time to focus on higher-level tasks and responsibilities. 
  • Get key insights. Reporting can track patch status and compliance across multiple systems, highlighting successes and opportunities for improvement. 

Discover how you can automate patch management to stay on top of security updates from Microsoft and other vendors with best-in-class remote monitoring and management software from ConnectWise. From monitoring devices to patching updates, ConnectWise RMM was purpose-built for IT professionals, designed to take your service delivery from reactive to proactive. Watch an on-demand demo of ConnectWise RMM today to see how our modern RMM solution can be a game-changer for your tech team. 

FAQs

Organizations can work with IT management to design and implement a structured approach to Patch Tuesday updates. First steps include creating an up-to-date inventory of all assets and third-party systems and identifying times when updates will have a minimal impact on live systems.  

Organizations should monitor Microsoft's Security Update Guide and other resources for upcoming patches and prioritize them accordingly.  

It’s also best practice to have a testing environment that mirrors production setups to test patches before deploying them across the system. Automation tools can help with configuration, testing, and deployment, leaving techs free to focus on addressing any issues that arise. 

While Patch Tuesday primarily refers to Microsoft products, many major vendors synchronize their patch releases with Microsoft’s schedule, creating an industry standard. This alignment enables IT teams to manage updates more efficiently across multiple platforms because they can prepare resources, schedules, and downtime accordingly. 

However, third-party applications often don’t offer consistent patching schedules, making them potential security gaps if patches aren’t applied promptly. Automated solutions are essential for managing updates that fall outside the Patch Tuesday cycle, reducing manual effort and ensuring timely patch deployment with minimal oversight. 

Patch Tuesday typically involves several types: 

  • Security updates: These address software vulnerabilities ranging from critical to low severity. 
  • Elevation of privilege patches: These prevent unauthorized users from gaining higher-level access to systems. 
  • Driver updates: These improve hardware compatibility and performance. 
  • Bug corrections: These fix issues in software code that may affect security. 
  • Feature updates: Though less common, these enhance existing functionalities or introduce new ones. 

While some patches may not involve security directly, vendors often release them on Patch Tuesday for efficiency’s sake. 

MSPs can use a combination of automation, planning, and centralization to handle updates for multiple clients. Automation software can deploy patches across various client environments, reducing the need for manual effort and oversight. This gives them more time to focus on issues that require manual intervention. 

Many MSPs use a centralized console to manage updates for all clients simultaneously, streamlining operations and giving them visibility into whether patches have been successfully deployed and flagging potential issues.  

Planning for Patch Tuesday also helps IT teams organize resources and prioritize tasks, helping them oversee the patching process more efficiently.  

Yes, Patch Tuesday updates can be automated with specialized solutions offering features that streamline the patch management process. These automation tools can download, test, and deploy patches across multiple systems and clients simultaneously. They also include a centralized console where techs can configure and implement patching policies across all systems and clients. Patching solutions can also provide real-time alerts about problems with patches, enabling IT to take action right away, preventing the risk of security holes. 

The sheer number of patches that are released can make maintaining compliance with industry and organizational requirements a challenge. IT teams can help clients feel confident about patch compliance with a multifaceted strategy that includes developing clear patch management policies and guidelines, automating the patch deployment process, and using specialized tools for efficient management across multiple systems. Techs can also implement processes to assess risks to client systems, helping them identify major vulnerabilities and prioritize patches in alignment with compliance requirements.  

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