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Chromium XSLT Deprecation Affecting Classic UI [Action Required]

  • May 1, 2026
  • 17 replies
  • 1527 views
Omar Ghazi
Community Manager
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Starting November 17, 2026, Google will remove support for XSLT to prevent potential security risks on Chromium-based browsers (including Google Chrome and Microsoft Edge). This change will prevent Classic UI screens in Acumatica ERP from loading in these browsers.

 

If your instance still relies on Classic UI, action is required before November 17, 2026.

 

What is the impact?

The severity of disruption depends on how much your instance relies on Classic UI. Any screen still running on Classic UI will stop loading in Chrome or Edge. If your team uses a mix of Modern and Classic UI, some workflows will be affected while others continue normally.

NOTE (Updated July 2026): Acumatica has delivered a fix that allows Classic UI to continue loading on Chromium-based browsers after November 17, 2026, in the latest patches for 2025 R1 and later versions. SaaS customers on 2025 R1 or later will receive this patch automatically within the next two to three weeks. PCS customers on 2025 R1 or later need to apply the patch manually before November 17, 2026.

 

Recommended Actions

If you are on Acumatica 2024 R2 or earlier:

  • Upgrade to 2025 R1 or later to receive this fix.
  • Use Mozilla Firefox as a temporary workaround until you can upgrade.

If you are on Acumatica 2025 R1 or later:

  • (mid-July 2026) SaaS customers are receiving the fix automatically. No action is required.
  • PCS customers need to apply the patch before November 17, 2026. Instructions and links are available on the community patches page: https://community.acumatica.com/patches-322.
  • Plan your migration to Modern UI. Classic UI is being deprecated in 2026 R2.

 

Staying Updated

Monitor the Knowledge Base Article for the latest updates on this fix and its availability timeline.

Omar Ghazi | Director of Product Management - Platform, AI & Technology

      17 replies

      G
      Freshman II
      Forum|alt.badge.img

      Hi ​@Omar Ghazi, thank you for the detailed information. I was wondering if you might be able to share any estimated timeline for when the fix for 2025 R1 will be available. Thanks!

        L
        Jr Varsity II
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        • Lanaswillow
        • Jr Varsity II
        • June 4, 2026

        Hi ​@Omar Ghazi, thank you for the detailed information. I was wondering if you might be able to share any estimated timeline for when the fix for 2025 R1 will be available. Thanks!

        Curious as well on our end.  We are on 2025R2 25.200.0248.3 +.

          VishalSrinivasan80
          Community Manager
          Forum|alt.badge.img

          Hi ​@Omar Ghazi, thank you for the detailed information. I was wondering if you might be able to share any estimated timeline for when the fix for 2025 R1 will be available. Thanks!

          Curious as well on our end.  We are on 2025R2 25.200.0248.3 +.

          Hi Lanaswillow,

          The next patch update (with the fix) for 25R1 is targeted for July 3, 2026. 

          Vishal Srinivasan | Associate Product Manager | Platform Team | Acumatica
            L
            Jr Varsity II
            Forum|alt.badge.img
            • Lanaswillow
            • Jr Varsity II
            • June 4, 2026

            Hi ​@Omar Ghazi, thank you for the detailed information. I was wondering if you might be able to share any estimated timeline for when the fix for 2025 R1 will be available. Thanks!

            Curious as well on our end.  We are on 2025R2 25.200.0248.3 +.

            Hi Lanaswillow,

            The next patch update (with the fix) for 25R1 is targeted for July 3, 2026. 

            Wonderful news Vishal, thank you for the details and for the reply.  Just to confirm if this patch is applied this will allow us to stay using Chrome as the web browser after XSLT is deprecated until we migrate to modern?

            Appreciate your time!

            L
            Jr Varsity II
            Forum|alt.badge.img
            • Lanaswillow
            • Jr Varsity II
            • June 4, 2026

            Hi ​@Omar Ghazi, thank you for the detailed information. I was wondering if you might be able to share any estimated timeline for when the fix for 2025 R1 will be available. Thanks!

            Curious as well on our end.  We are on 2025R2 25.200.0248.3 +.

            Hi Lanaswillow,

            The next patch update (with the fix) for 25R1 is targeted for July 3, 2026. 

            On more question, when is the anticipated date for 2025R2?

            M
            Jr Varsity III
            Forum|alt.badge.img
            • mna10
            • Jr Varsity III
            • June 10, 2026

            good morning, do you know when the anticipated date for 2025R2 is?

            VishalSrinivasan80
            Community Manager
            Forum|alt.badge.img

            Hi ​@Omar Ghazi, thank you for the detailed information. I was wondering if you might be able to share any estimated timeline for when the fix for 2025 R1 will be available. Thanks!

            Curious as well on our end.  We are on 2025R2 25.200.0248.3 +.

            Hi Lanaswillow,

            The next patch update (with the fix) for 25R1 is targeted for July 3, 2026. 

            Wonderful news Vishal, thank you for the details and for the reply.  Just to confirm if this patch is applied this will allow us to stay using Chrome as the web browser after XSLT is deprecated until we migrate to modern?

            Appreciate your time!

            Yes you are right.

            Vishal Srinivasan | Associate Product Manager | Platform Team | Acumatica
              VishalSrinivasan80
              Community Manager
              Forum|alt.badge.img

              good morning, do you know when the anticipated date for 2025R2 is?

              The fix for 25R2 is scheduled for June 30 2026.

              Vishal Srinivasan | Associate Product Manager | Platform Team | Acumatica
                VishalSrinivasan80
                Community Manager
                Forum|alt.badge.img

                Hi ​@Omar Ghazi, thank you for the detailed information. I was wondering if you might be able to share any estimated timeline for when the fix for 2025 R1 will be available. Thanks!

                Curious as well on our end.  We are on 2025R2 25.200.0248.3 +.

                Hi Lanaswillow,

                The next patch update (with the fix) for 25R1 is targeted for July 3, 2026. 

                On more question, when is the anticipated date for 2025R2?

                Hi,

                The fix for 25R2 is scheduled for June 30 2026.

                Vishal Srinivasan | Associate Product Manager | Platform Team | Acumatica
                  L
                  Jr Varsity II
                  Forum|alt.badge.img
                  • Lanaswillow
                  • Jr Varsity II
                  • June 10, 2026

                  good morning, do you know when the anticipated date for 2025R2 is?

                  The fix for 25R2 is scheduled for June 30 2026.

                  Thank you!!

                  R
                  Jr Varsity II
                  Forum|alt.badge.img+1
                  • rbrownNAW
                  • Jr Varsity II
                  • June 11, 2026

                  Target date for 2026 R1? Also will these patches be pushed or follow the new manual patch process?

                    G
                    Freshman II
                    Forum|alt.badge.img

                    Hi ​@Omar Ghazi, thank you for the detailed information. I was wondering if you might be able to share any estimated timeline for when the fix for 2025 R1 will be available. Thanks!

                    Curious as well on our end.  We are on 2025R2 25.200.0248.3 +.

                    Hi Lanaswillow,

                    The next patch update (with the fix) for 25R1 is targeted for July 3, 2026. 

                    Hi, has the patch update for 25R1 been released? Thanks!

                    VishalSrinivasan80
                    Community Manager
                    Forum|alt.badge.img

                    Hi ​@Omar Ghazi, thank you for the detailed information. I was wondering if you might be able to share any estimated timeline for when the fix for 2025 R1 will be available. Thanks!

                    Curious as well on our end.  We are on 2025R2 25.200.0248.3 +.

                    Hi Lanaswillow,

                    The next patch update (with the fix) for 25R1 is targeted for July 3, 2026. 

                    Hi, has the patch update for 25R1 been released? Thanks!

                    The patch for 25R1 is scheduled to be released on July 3rd 2026. 

                    Vishal Srinivasan | Associate Product Manager | Platform Team | Acumatica
                    L
                    Jr Varsity II
                    Forum|alt.badge.img
                    • Lanaswillow
                    • Jr Varsity II
                    • July 9, 2026

                    Hello Vishal can you confirm the service patch # for 2025R2?

                    VishalSrinivasan80
                    Community Manager
                    Forum|alt.badge.img

                    Target date for 2026 R1? Also will these patches be pushed or follow the new manual patch process?

                    The patch for 26R1 is scheduled for July 3rd 2026. The upgrade is automatic for SaaS clients and manual for PCS clients.

                    Vishal Srinivasan | Associate Product Manager | Platform Team | Acumatica
                    C
                    Varsity I
                    Forum|alt.badge.img
                    • cwomack98
                    • Varsity I
                    • July 14, 2026

                    Our client is on 25.201.0213-4. Looking at the update history they seem to be on a mid-month schedule.  So the next patch they get should be around this week will include the fix? or do I need to request something?

                    VishalSrinivasan80
                    Community Manager
                    Forum|alt.badge.img

                    Our client is on 25.201.0213-4. Looking at the update history they seem to be on a mid-month schedule.  So the next patch they get should be around this week will include the fix? or do I need to request something?

                    Yes - the XSLT fix is confirmed merged into the patch released July 3, 2026 - 2025R2 SP1, build 25.201.0213.5.

                    Vishal Srinivasan | Associate Product Manager | Platform Team | Acumatica
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