Outlook’s latest version is 2408, available through Microsoft 365 channels and standalone Office 2024. If you have ever wondered “what is the latest version of outlook” for your specific setup, the answer depends on your subscription type and update channel. This guide breaks down everything you need to know, from version numbers to how to check yours.
Knowing your Outlook version helps you access the newest features, security patches, and performance improvements. Microsoft releases updates monthly, so staying current matters.
What Is The Latest Version Of Outlook
The most recent stable release of Microsoft Outlook is version 2408 (Build 17928.20156). This applies to Microsoft 365 subscribers and Office 2024 users. The version number changes each month, usually around the second Tuesday.
For perpetual license holders like Office 2021 or Office 2019, the latest version is different. Those editions receive only security updates, not new features. Office 2021’s latest is version 2108 (Build 14332.20714). Office 2019 sits at version 1808 (Build 10414.20006).
Version 2408 Key Highlights
- Improved search performance with faster results
- New calendar sharing options for external users
- Better integration with Microsoft Loop components
- Enhanced phishing protection in the reading pane
- Support for new file formats in attachments
These updates roll out gradually. Not every user sees them immediately. Microsoft uses a phased approach to ensure stability.
How To Check Your Outlook Version
Finding your current version takes only a few clicks. Follow these steps for Windows or Mac.
On Windows (Outlook Desktop)
- Open Outlook and click File in the top-left corner
- Select Office Account from the menu
- Look under Product Information for the version number
- Note the full build number, like 2408 (Build 17928.20156)
Alternatively, go to File > Account Settings > Account Settings. The version appears at the bottom of the dialog box.
On Mac (Outlook For Mac)
- Open Outlook and click Outlook in the menu bar
- Select About Outlook
- Check the version number displayed in the window
Mac versions follow a similar numbering system but may differ slightly. The latest Mac version is usually 16.86 (Build 2408).
On Outlook.com (Web)
The web version updates automatically. You cannot check a version number directly. Instead, look for feature announcements in the settings menu under Help > What’s New.
Update Channels Explained
Microsoft distributes Outlook updates through several channels. Each channel recieves updates at different speeds.
Current Channel (Most Users)
This is the default for Microsoft 365 subscribers. You get new features as soon as they are ready. Version 2408 arrived here first in August 2024.
Monthly Enterprise Channel
Designed for businesses that need predictable updates. Features arrive about a month later than Current Channel. Version 2408 reached this channel in September 2024.
Semi-Annual Enterprise Channel
For organizations with strict change management. Updates come twice a year. The latest here is version 2402 (Build 17328.20512).
Office 2024 Perpetual
Standalone Office 2024 uses version 2408 but without future feature updates. You only recieve security fixes for the next five years.
What’s New In Outlook 2408
Version 2408 brings several improvements worth knowing. Here is a breakdown of the major changes.
Enhanced Search Capabilities
Search now returns results faster, even with large mailboxes. Microsoft optimized the indexing engine. You can filter by date, sender, and attachment type more easily.
Improved Calendar Sharing
Sharing your calendar with external users is simpler. You can now set permissions for viewing free/busy information or full details. This works with Google Calendar and other services.
Loop Component Integration
Outlook now supports Microsoft Loop components directly in emails. You can insert a live table, task list, or voting button. Recipients can edit without leaving the message.
Phishing Protection Updates
The reading pane now warns you about suspicious links and attachments. This feature uses machine learning to detect threats. It works alongside existing junk mail filters.
Attachment Improvements
You can now attach files from OneDrive, SharePoint, or your device with better previews. The attachment pane shows thumbnails for images and PDFs.
Outlook Version History
Understanding past versions helps you track changes. Here is a quick timeline of recent releases.
| Version | Release Date | Channel |
|---|---|---|
| 2408 | August 2024 | Current Channel |
| 2407 | July 2024 | Current Channel |
| 2406 | June 2024 | Current Channel |
| 2405 | May 2024 | Current Channel |
| 2404 | April 2024 | Current Channel |
Each version includes security patches and bug fixes. Feature updates are more common in the first half of the year.
How To Update Outlook To The Latest Version
Updating Outlook is straightforward. The method depends on your installation type.
For Microsoft 365 Subscribers
- Open any Office app like Word or Outlook
- Click File > Account
- Under Update Options, click Update Now
- Wait for the download and install to complete
- Restart Outlook to apply changes
You can also enable automatic updates. In the same menu, select Enable Updates if it is disabled.
For Office 2024 Or Office 2021
Perpetual versions do not recieve feature updates. To get security patches, run Windows Update or Microsoft Update. Go to Settings > Update & Security > Windows Update and check for updates.
For Mac Users
- Open Outlook and click Help > Check for Updates
- The Microsoft AutoUpdate tool opens
- Click Check for Updates and follow prompts
Mac updates are usually smaller and install faster than Windows versions.
Common Issues With Outlook Updates
Sometimes updates fail or cause problems. Here are fixes for frequent issues.
Update Stuck Or Not Downloading
- Restart your computer and try again
- Check your internet connection
- Disable antivirus temporarily
- Run the Microsoft Support and Recovery Assistant
Outlook Crashes After Update
- Start Outlook in safe mode (hold Ctrl while opening)
- Disable add-ins one by one
- Repair Office from Control Panel
- Reinstall Office if needed
Version Number Not Changing
If your version stays the same after updating, you may be on a different channel. Check your update channel in File > Account. Switch to Current Channel for faster updates.
Outlook For Mobile: Latest Version
The mobile app updates separately from desktop. Here is the current status.
Outlook For IOS
Latest version is 4.2430.0, released in September 2024. It includes Focused Inbox improvements and new widget options.
Outlook For Android
Version 4.2430.1 is the latest. It adds calendar widget customization and better dark mode support.
Mobile versions update through the App Store or Google Play. Enable automatic updates to stay current.
Outlook On The Web: Always Latest
Outlook.com updates automatically. You never need to check versions. Microsoft pushes new features weekly. Recent additions include:
- Inline translation for emails
- Improved search filters
- Better integration with Microsoft To Do
- Customizable swipe gestures
If you use Outlook on the web, you already have the latest version. No action required.
Why Version Numbers Matter
Knowing your Outlook version helps in several ways. First, it ensures you have the latest security patches. Second, it helps when troubleshooting issues with IT support. Third, it tells you if you are missing new features.
Microsoft releases security updates on Patch Tuesday (second Tuesday of each month). Feature updates come more frequently. If you are behind by more than two versions, you might miss important fixes.
How To Stay Informed About New Versions
Microsoft publishes release notes for each update. You can find them on the Microsoft 365 Roadmap website. Alternatively, check the Outlook blog for announcements.
For enterprise users, your IT department usually manages updates. Ask them about the current version and update schedule.
Frequently Asked Questions
What Is The Latest Version Of Outlook For Microsoft 365?
The latest version is 2408 (Build 17928.20156) as of September 2024. This applies to Current Channel subscribers.
How Do I Find My Outlook Version Number?
On Windows, go to File > Office Account. On Mac, click Outlook > About Outlook. The version number appears there.
Is Outlook 2024 The Same As Microsoft 365 Outlook?
No. Office 2024 is a one-time purchase with version 2408 but no future feature updates. Microsoft 365 Outlook gets monthly updates with new features.
Why Is My Outlook Version Different From The Latest?
You may be on a different update channel (Monthly Enterprise or Semi-Annual). Check your channel in File > Account. You can switch to Current Channel for faster updates.
Does Outlook For Mac Have The Same Version As Windows?
No. Mac versions use a different numbering system. The latest Mac version is 16.86 (Build 2408), which corresponds to the same feature set.
Final Tips For Keeping Outlook Updated
Staying on the latest version of Outlook is simple. Enable automatic updates in your Office settings. Check for updates manually once a month. If you use a perpetual license, consider upgrading to Microsoft 365 for continuous improvements.
Remember that version numbers change monthly. The answer to “what is the latest version of outlook” today may differ next month. Bookmark Microsoft’s release notes page for the most current information.
If you encounter issues after an update, roll back to the previous version. Go to File > Account > Update Options > View Update History. Select the previous version and click Uninstall. This works for 30 days after the update.
Outlook’s latest version is 2408, but that will change soon. Keep checking, and you will always have the best experience.