[Compilation Error] Rive Unity package fails to compile in Unity 6000.5.0f1 due to obsolete GetInstanceID()

[ArenHansy]

Submission checklist

• I have confirmed the issue is present in the latest version of the Rive Unity package
• I have searched the documentation and forums and could not find an answer
• I have searched existing issues and this is not a duplicate

Description

The Rive Unity package fails to compile immediately upon importing or upgrading the project to Unity 6000.5.0f1.

Unity 6000.5 introduces a breaking change where GetInstanceID() is marked as an obsolete compile-time error as Unity transitions to the new EntityId system. The compiler blocks the build with an error message stating that GetInstanceID() on Assets should not be used.

Please update the asset ID referencing system to be compatible with Unity 6000.5.0f1 and later.

Previous working version

Unity 6000.4.10f1

Reproduction steps / code

No response

Upload your reproduction files / stack trace

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Source .riv / .rev file

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Screenshots / video

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Unity Editor log file

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Rive Unity package version

0.4.3

Unity version

6000.5.0f1

Target platform

macOS

Editor OS & version

macOS 26.5.1

Additional context

No response

[damzobridge]

Thanks for opening an issue. I'll let you know once we've addressed this!