While Amos 28 and 27 are still widely used and supported, Version 29 represents the most significant feature update since the transition from Amos 26. IBM typically releases a new version annually, aligning with the SPSS Statistics release schedule. Amos 29 was officially released in late 2025, with a minor maintenance update (29.0.1) rolling out in March 2026.
| Feature | Amos 29 (Latest) | Mplus 8.10 | R/lavaan (2026) | | :--- | :--- | :--- | :--- | | | Drag-and-drop GUI | Syntax-only | Syntax-only | | Bayesian SEM | Yes (MCMC, improved) | Yes (limited) | Yes (blavaan package) | | Missing Data | FIML + New Dashboard | FIML | FIML (semTools) | | Speed (Mac Silicon) | Native support | Emulated | Native | | Cost | $$$ (Commercial) | $$ | Free | | Best For | Corporate research, dissertations | Psychometrics, complex models | Budget-conscious researchers | amos latest version
If you are on , the upgrade is less critical unless you need Apple Silicon native speed or the missing data dashboard. However, for team environments where collaborators use different OS versions, standardizing on Amos 29 avoids file compatibility issues. While Amos 28 and 27 are still widely
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