Release notes for every Spire 4.x version, newest first. Spire 4.x and Spire 3.x are separate lines that Spire maintains side by side; for the other line see Spire 3.x release notes.
- Spire 4.1 – September 16, 2026 (4.1 to 4.1.1): User Roles and better audit history
- Spire 4.0 – August 4, 2026 (4.0): A new generation of Spire Desktop
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Source: Spire Systems Inc. release notes, retrieved on 2026-10-08, organised by SpireAssists.