SPFX for SharePoint SE

[jlacarelle]

What type of issue is this?

Question

What SharePoint development model, framework, SDK or API is this about?

💥 SharePoint Framework

Target SharePoint environment

SharePoint Online

What browser(s) / client(s) have you tested

• 💥 Internet Explorer
• 💥 Microsoft Edge
• 💥 Google Chrome
• 💥 FireFox
• 💥 Safari
• mobile (iOS/iPadOS)
• mobile (Android)
• not applicable
• other (enter in the "Additional environment details" area below)

Additional environment details

• browser version
• SPFx version
• Node.js version
• etc

Issue description

Hello,

What is the maximum SPFX version for SharePoint SE 25H2?
The Microsoft documentation states that it is version 1.5.0, but I have seen several blogs explaining that you can go up to version 1.15.2, and in the release notes for the 23H2 version of SP SE, it says:

SharePoint Server Subscription Edition Version 23H2 adds support for React version 16 and Office UI Fabric React 7

(which is not the case for version 1.5.0)

What is the actual situation?

[Ashlesha-MSFT]

Hello @jlacarelle ,
Thank you for bringing this issue to our attention. We will look into it and get back to you shortly.
If you don’t receive a reply within two working days, please use this escalation form to escalate.

[Ashlesha-MSFT]

@jlacarelle,
The officially supported SPFx version for SharePoint Server Subscription Edition remains SPFx 1.5.x. While some blogs or community posts reference using newer generator versions (like 1.15.x), these setups are not officially supported. We will verify internally whether feature updates like 23H2 or 25H2 affect SPFx compatibility and provide an update once confirmed.

[Ashlesha-MSFT]

@jlacarelle,

1. Officially supported SPFx versions for SharePoint Server Subscription Edition (including 25H2) remain SPFx 1.0–1.5.x
2. References to React 16 support in 23H2 do not mean SPFx 1.15.x is supported
3. SPSE runtime can accept React 16 bundles, but developers must manually configure them
4. Community-tested higher SPFx versions (like 1.15.2) are unsupported configurations
5. Microsoft acknowledges customer concern and has confirmed future investment planning for SPSE/SPFx modernization, but there is no committed roadmap/version yet