Below, we describe the major new features in the subsequent versions of LatentGOLD. We start with version 2.0 because version 1.0 from 1999 was a beta version that was not distributed.
2000: Version 2.0
- Cluster module
- DFactor module
- Regression module
2003: Version 3.0
- Choice module
- Options for saving models and output
- Enhanced algorithms
- Extended missing value options
- Bootstrap L2 goodness-of-fit statistic
- Inactive covariates option
- R2 measures for indicators and dependent variables
- Parameter restrictions in Regression module
2005: Version 4.0
- Complex sampling (or Survey) options
- Multilevel latent class analysis
- Continuous latent variables (CFactors)
- Knownclass option
- Bootstrap -2LL difference statistic (BLRT)
- Various order restrictions on parameters
- Zero-inflated models
- Linkage with SI-CHAID program
2008: Version 4.5
- Syntax module
- Latent Markov models
- (Mixture) factor analysis and IRT
- Flexible parameter restrictions
- Imputation options
- Monte Carlo simulation options
2013: Version 5.0
- Major speed improvement by parallel computing
- Step3 module
- Markov GUI module
- Obtaining scoring equations
- Selection and holdout options
- Flexible Step3 modeling via Syntax
- Continuous-time latent Markov models
- Log-linear scale models
- Score tests
- User-defined Wald tests
- Power computation for Wald tests
- Expanded bivariate residuals
2016: Version 5.1
- 64-bit version
- Paired comparison Wald tests
- Power computation for likelihood-ratio tests
- Standard error correction for Step3 models
- Expanded (multiple) imputation options
2021: Version 6.0
- LC tree models
- Three-step LCA with differential item functioning (DIF)
- Bakk-Kuha stepwise LCA
- Mixture and multi-group exploratory factor analysis
- B-spline effects for independent variables
- Vuong-Lo-Mendell-Rubin tests
- Marginal effects output
- User-defined expressions
2025: Version 6.1
- New licensing system
- Three-step analysis with continuous latent variables
- (Mixture) structural equation modeling (SEM)
- Parametric survival models
- Markov option in Step3 GUI
- Expanded batch mode options