Changes in version 1.0-24 (2026-03-17)                 

    o   Modernize Fortran sources for current compilers (e.g., gfortran/flang):
	replace old-style CHARACTER*n declarations with CHARACTER(LEN=n) and
	remove nonconforming tab characters to reduce -pedantic warnings.
	convert labeled DO/CONTINUE loops to block DO/END DO in several
	routines, improving readability and maintaining compatibility with
	modern Fortran compilers.

    o   Documentation maintenance:
	add missing \\value sections for exported functions and update Rd usage/
	arguments to match code changes.

    o   Vignette maintenance:
	ship a pre-rendered static vignette output (HTML) to avoid long-running or
	fragile vignette rebuilds during R CMD check.

    o   DESCRIPTION / metadata:
	expand Description text and update maintainer/citation information.

                 Changes in version 1.0-21 (2017-04-28)                 

    o   change package= to PACKAGE= when calling .Fortran in R function

    o   to register native routines and to disable symbol search

                 Changes in version 1.0-19 (2014-02-27)                 

    o   added pre2 and prv2 in car object for fitted values with variances

                 Changes in version 1.0-18 (2013-08-22)                 

    o   modified to remove calls to plot.spec for R version 3.1.0

    o   add inst/COPYRIGHTS

                 Changes in version 1.0-17 (2013-06-21)                 

    o   delete LAPACK source files dgetrs.f and dgetrf.f, instead call these subroutines in LAPACK 

    o   update author field in DESCRIPTION

                 Changes in version 1.0-16 (2013-06-13)                 

    o   The estimates of all the other variances (in this case the forecast value variance) must by multiplied by this residual variance.

    o   Lazy Fortran programmers often specify Fortran dimensions as 1 rather than * or a real bound: d1rply.f, d2rply.f, d3rply.f, d4rply.f, d5rply.f, d6rply.f, d7rply.f, d8rply.f, d9rply.f 

                 Changes in version 1.0-12 (2012-07-25)                 

    o   changed the Fortran subroutine cspec to the calculation of the spectrum

    o   added a new parameter frmult in function spectrum which can be used to muliply the frequency range

    o   added AIC and BIC values in the output of function car  

                       Changes in version 1.0-11                        

    o   changed the limit of number of observations from 500 to 5000

                 Changes in version 1.0-10 (2012-04-05)                 

    o   in R function car, to avoid array overrun, change the following lines
	phi <- .Fortran("setupdate",
	        phi1=double(order),
	to 
	phi <- .Fortran("setupdate",
	        phi1=double(20),

                 Changes in version 1.0-9 (2012-01-15)                  

    o   modify plot.spec.ls

    o   change R function names plot.spec.car and plot.spec.ls.

                 Changes in version 1.0-8 (2011-11-22)                  

    o   The package failed test/build on Mac machines with version 1.0-6 and 1.0.7. Removed machine.f and used the envirn.f in version 1.0-5, and add getmin.f and store.f in version 1.0-5. 

                 Changes in version 1.0-7 (2011-11-18)                  

    o   modify car.R to generate machine.txt with an extra end line as a workaround for Fortran machine.f failure on Mac machines

                 Changes in version 1.0-6 (2011-11-15)                  

    o   add Fortran source file diagram

    o   add Fortran source file machine.f to read the machine dependent information written by R function car_control

    o   replace sgefa.f with dgetrf.f, and sgesl.f with dgetrs.f in lycsr.f and mepad.f (sgefa.f and sgesl.f are indeed dgefa.f and dgesl.f, respectively, in Netlib). 

    o   remove unused Fortran source file sgesa.f, sgesl.f, dpodi.f, envron.f

                 Changes in version 1.0-5 (2011-08-28)                  

    o   replace two values computed by calling envron in envirn.f, and remove envron.f. The machine dependent paramaters in envirn.f caused a failure of test/build on Windows machines.

                 Changes in version 1.0-4 (2011-07-23)                  

    o   commented out print/write in Fortran subroutines, and add IMPLICIT NONE

                        Changes in version 1.0-3                        

    o   changes from 1.0-1: pass a parameter TRACE in R function to Fortran (TRA), which controls printout. Also minorly improve R functions   

                 Changes in version 1.0-1 (2006-09-29)                  

    o   In Makevars, replace PKG_LIBS=$(LAPACK_LIBS) $(BLAS_LIBS) with
	PKG_LIBS=$(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS) 
	           Note on `cts' VERSION 1.0-2 (2006-12-11)

    o   This version was used for some calculations with time deformation, not for package development purpose   

                  Changes in version 1.0 (2006-06-22)                   

    o   submitted the package to CRAN