Resolved May 7, 2026: Known Issues: Blue Border for macOS & iOS 26.4

May 7, 2026 Status

  • macOS: Resolved May 7, 2026
  • iOS: Resolved April 1, 2026

Apple recently released macOS Tahoe 26.4, and the update introduced disruptive system-wide changes affecting multiple third-party applications. Thanks to advance testing, our engineering team resolved the most significant of these issues before they could reach Blue Border users. 

The final release did, however, include a last-minute Keychain security change on macOS and iOS (CVE-2026-28864) that wasn't disclosed until release day. This change caused intermittent issues for Venn users on Mac computers and iPhones starting on March 27, 2026 that we have since resolved.

Recommended Actions

macOS Issues (Resolved)

We’re pleased to share that our engineering team has released Workplace for Mac App Version 4.0.9585.11124 and Container Version 1.0.9609.14387, which resolve the conflicts between iOS 26.4 and the Workplace app. 

Once they are on the latest version of Workplace for Mac (App: 4.0.9585.11124, Container: 1.0.9609.14387 or higher), users can safely update to macOS 26.4.

If you previously advised users not to update to macOS 26.4, please share the following message with them.

Additionally, if you previously changed your Operating System Auto Update Compliance Check to Recommended, we recommend following these instructions to change the check back to Required.

Please share the following with your Mac users:

Once you are on the latest version of Workplace for Mac (App: 4.0.9585.11124, Container: 1.0.9609.14387 or higher), you can safely update to macOS 26.4.

If you have already updated to macOS 26.4, make sure you are on the latest version of Workplace for Mac to ensure that you aren't impacted by incompatibilities.

Make sure that you are on the latest version of Workplace on your Mac.

  1. Open the Workplace app on your Mac.
  2. Click the Settings icon in the top right corner.
  3. Go to the Update tab.
  4. Check to make sure that your versions include the fixes for macOS 26.4 incompatibilities.
    • App Version is at least 4.0.9585.11124
    • Container Version is at least 1.0.9609.14387
  5. If Workplace isn't up to date, click to update. 

Once you're on the latest version of Workplace, re-enable automatic updates on your Mac if you had disabled them.

  1. Click the Apple icon in the top left corner of your screen to open the Apple menu.
  2. Click System Settings.
  3. On the General settings page, click Software Update.
  4. Click the ⓘ icon next to Automatic Updates.
  5. Toggle on Install macOS updates and click Done.
  6. If prompted, enter your device password or authenticate using Touch ID.
  7. Your device will then download and install macOS 26.4 automatically, or you can go to System Settings > General > Software Update to install it manually right away.

After you update, if you are unable to access the Workplace app or if you experience any issues, please reach out for support.

iOS Issues (Resolved)

We’re pleased to share that our engineering team has released Workplace for iOS 4.3.0, which resolves the conflicts between iOS 26.4 and the Workplace app. 

Once they are on the latest version of Workplace for iOS (4.3.0), they can safely update to iOS 26.4.

If you previously advised users not to update to iOS 26.4, please share the following message with them.

Additionally, if you previously changed your mobile Operating System Auto Update Compliance Check to Recommended, we recommend following these instructions to change the check back to Required.

Please share the following with your Workplace mobile app for iOS users:

Once you are on the latest version of Workplace on your iPhone (4.3.0), you can safely update to iOS 26.4.

Here’s what you’ll need to do:

  1. Make sure that you have automatic app updates enabled.
    1. Open the Settings app.
    2. Scroll down and tap Apps.
    3. Tap App Store.
    4. Make sure that App Updates is toggled on.
  2. Wait until you are on the latest version of Workplace on your iPhone (4.3.0).
    1. Open the Workplace app.
    2. Go to More.
    3. Check the version number in the top right corner. Don’t proceed to step 3 until you see the version number 4.3.0. (This could take a day or two.)
  3. Re-enable automatic updates on your iPhone.
    1. Open the Settings app.
    2. Tap General.
    3. Tap Software Update.
    4. Tap Automatic Updates.
    5. Make sure that Automatically Install is toggled on.

Your device will then download and install iOS 26.4 automatically, or you can go to Settings > General > Software Update to install it manually right away.

After you update, if you are unable to access the Workplace app or if you experience any issues, please reach out for support.

Note: iPad users will experience user interface issues in the Workplace app if they are on the latest version of Workplace for iOS (4.3.0). There are very few Workplace for iPadOS users, so we do not recommend broadly communicating this to users. 

If a user reports issues with the Workplace app on their iPad, please contact support.

Known Issues

iPadOS: User interface issues

Users who update to the latest version of Workplace (4.3.0) will experience user interface issues, including missing icons and tabs.

Note: This issue is only impacting Workplace for iPad users, not iPhone users.

Status: OPEN - This issue was identified by our engineers on April 1, 2026. We are currently investigating.

Resolved Issues

iOS & iPadOS: Workplace Mobile App crashing

Some users who updated their iPhones/iPads to iOS 26.4 were experiencing crashes with the Workplace mobile app. The app closed immediately after a brief white loading screen. 

Status: RESOLVED - This issue was reported on March 25, 2026. This issue was resolved in Workplace for iOS 4.3.0, which was released on April 1, 2026.

The Workplace for iOS app update will be automatically applied for all customers who use the Workplace MDM solution. For those who only use the Workplace app for MFA, the update will be applied automatically as long as the user hasn't turned off automatic app updates on their iOS device. If the Workplace app doesn’t update automatically, users may need to manually update it following these instructions.

macOS: Users prompted to log in to apps each time they launch them

Some users who updated their Macs to iOS 26.4 were being prompted to log back in to work apps each time they opened them inside Blue Border. 

Status: RESOLVED - This issue was identified by our engineers on March 26, 2026. This issue was resolved in Workplace for Mac Container Version 1.0.9609.14387, which finished releasing to all channels on May 7, 2026.

macOS: Meeting links not opening when logged out of Blue Border

If users updated their Macs to iOS 26.4, when they logged out of Blue Border and clicked a link to join a meeting outside of Blue Border, the meeting would not always open. This issue affected video and voice calling applications (Zoom, Teams, Slack, etc.).

Status: RESOLVED - This issue was identified by our engineers on March 26, 2026. This issue was resolved in Workplace for Mac Container Version 1.0.9609.14387, which finished releasing to all channels on May 7, 2026.

macOS: Users unexpectedly logged out of Blue Border mid-session

Some users who updated their Macs to iOS 26.4 were being unexpectedly logged out of Blue Border mid-session—typically within a few minutes of launching apps inside Blue Border. When this occured, users would see the Workplace sign-in window and would sometimes be prompted to allow keychain access.

Status: RESOLVED - This issue was identified by our engineers on March 27, 2026. This issue was resolved in Workplace for Mac App Version 4.0.9585.11124, which was released to all channels on April 13, 2026.

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