Changes in version 3.4.2 (2025-05-05) Bug fixes o The functionality for computing standard errors in stdCoxph has been updated, to reflect an update that was made in the survival package version 3.2-9 for handling centering of binary covariates. Changes in version 3.4.1 (2021-05-17) Bug fixes o A minor bug has been corrected in the handling of the argument subsetnew. Changes in version 3.4.0 (2020-02-24) Bug fixes o An error has been corrected in the summary.parfrailty function. User-visible changes o parfrailty now returns the data argument. o Added output elements call and input to stdCoxph, stdGee, stdGlm and stdParfrailty. o The est, score and hessian elements of class("parfrailty") have been named. o A help entry for summary.stdGlm has been added. o Informative error messages have been added in places. Non-visible changes o Less internal calls to coxph.detail in stdCoxph, which makes the function slightly faster. o Replaced class(fit)=="name" with inherits(x=fit, what="name") in places, which should be safer. o Minor changes in the internal handling of formula arguments, to avoid errors if formulas are given implicitly to models, e.g. f <- y~x, fit <- glm(formula=f) Changes in version 3.3.0 (2019-03-15) Bug fixes o A minor bug has been corrected in the calculation of vcov for stdCox. This may have a minor effect on the estimated variance-covariance matrix.