diff --git a/README.md b/README.md
index 9af1871..24804ff 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ In this repository we are presenting the **SAS Packages Framework** which allows
 
 ### Current version:
 
-**The latest version** of SPF is **`20221215`**.  
+**The latest version** of SPF is **`20230112`**.  
 
 To get started with SAS Packages try this [**`Getting Started with SAS Packages`**](https://github.com/yabwon/SAS_PACKAGES/blob/main/SPF/Documentation/Getting_Started_with_SAS_Packages.pdf "Getting Started with SAS Packages") presentation (see the `./SPF/Documentation` directory).
 
diff --git a/SPF/Documentation/SAS(r) packages - the way to share (a how to)- Paper 4725-2020 - extended.pdf b/SPF/Documentation/SAS(r) packages - the way to share (a how to)- Paper 4725-2020 - extended.pdf
index d96690d..02fdb41 100644
Binary files a/SPF/Documentation/SAS(r) packages - the way to share (a how to)- Paper 4725-2020 - extended.pdf and b/SPF/Documentation/SAS(r) packages - the way to share (a how to)- Paper 4725-2020 - extended.pdf differ
diff --git a/SPF/Macros/extendpackagesfileref.sas b/SPF/Macros/extendpackagesfileref.sas
index 83d8efb..bc1345c 100644
--- a/SPF/Macros/extendpackagesfileref.sas
+++ b/SPF/Macros/extendpackagesfileref.sas
@@ -6,7 +6,7 @@
              when empty the "packages" value is used */
 )/secure
 /*** HELP END ***/
-des = 'Macro to list directories pointed by "packages" fileref, version 20221215. Run %extendPackagesFileref(HELP) for help info.'
+des = 'Macro to list directories pointed by "packages" fileref, version 20230112. Run %extendPackagesFileref(HELP) for help info.'
 ;
 
 %if %QUPCASE(&packages.) = HELP %then
@@ -22,7 +22,7 @@ des = 'Macro to list directories pointed by "packages" fileref, version 20221215
     %put ###       This is short help information for the `extendPackagesFileref` macro            #;
     %put #-----------------------------------------------------------------------------------------#;;
     %put #                                                                                         #;
-    %put # Macro to list directories pointed by 'packages' fileref, version `20221215`             #;
+    %put # Macro to list directories pointed by 'packages' fileref, version `20230112`             #;
     %put #                                                                                         #;
     %put # A SAS package is a zip file containing a group                                          #;
     %put # of SAS codes (macros, functions, data steps generating                                  #;
diff --git a/SPF/Macros/generatepackage.sas b/SPF/Macros/generatepackage.sas
index bae3941..a9b77ba 100644
--- a/SPF/Macros/generatepackage.sas
+++ b/SPF/Macros/generatepackage.sas
@@ -23,7 +23,7 @@
                     default value 1 means "delete tests work" */
 )/ secure minoperator
 /*** HELP END ***/
-des = 'Macro to generate SAS packages, version 20221215. Run %generatePackage() for help info.'
+des = 'Macro to generate SAS packages, version 20230112. Run %generatePackage() for help info.'
 ;
 %if (%superq(filesLocation) = ) OR (%qupcase(&filesLocation.) = HELP) %then
   %do;
@@ -38,7 +38,7 @@ des = 'Macro to generate SAS packages, version 20221215. Run %generatePackage()
     %put ###      This is short help information for the `generatePackage` macro         #;
     %put #-------------------------------------------------------------------------------#;
     %put #                                                                               #;
-    %put # Macro to generate SAS packages, version `20221215`                            #;
+    %put # Macro to generate SAS packages, version `20230112`                            #;
     %put #                                                                               #;
     %put # A SAS package is a zip file containing a group                                #;
     %put # of SAS codes (macros, functions, data steps generating                        #;
@@ -152,6 +152,11 @@ filename &_LIC_.   "&filesLocation./license.sas" lrecl = 1024;
         otherwise;
       end;
     run;
+    /* package generation timestamp, in iso8601 YYYY-MM-DDThh:mm:ss */
+    %local packageGenerated;
+    %let packageGenerated = %sysfunc(datetime(), E8601DT19.);
+    %put NOTE: &=packageGenerated.;
+
     options &qlenmax_fstimer_tmp.;
  
     /* test for required descriptors */
@@ -680,8 +685,8 @@ proc contents data = &filesWithCodes.;
 run;
 */
 title1 "Package location is: &filesLocation.";
-title2 "User: &SYSUSERID., datetime: %qsysfunc(datetime(), datetime21.), SAS version: &SYSVLONG4.";
-title3 "Package encoding: '&packageEncoding.', session encoding: '&SYSENCODING.'.";
+title2 "User: &SYSUSERID., Datetime: &packageGenerated., SAS version: &SYSVLONG4.";
+title3 "Package encoding: '&packageEncoding.', Session encoding: '&SYSENCODING.'.";
 title4 " ______________________________ ";
 title5 "List of files for package: &packageName. (version &packageVersion.), license: &packageLicense.";
 title6 "MD5 hashed fileref of package lowcase name: &_PackageFileref_.";
@@ -772,7 +777,7 @@ data _null_;
     end;
   file &zipReferrence.(packagemetadata.sas) encoding = &packageEncoding.;
 
-  length packageName $ 32 packageVersion $ 24
+  length packageName $ 32 packageVersion packageGenerated $ 24
          packageTitle packageAuthor packageMaintainer $ 2048
          packageEncoding $ 8 packageLicense $ 128;
   packageName       = quote(strip(symget('packageName')),'"');
@@ -782,6 +787,7 @@ data _null_;
   packageMaintainer = quote(strip(symget('packageMaintainer')),'"');
   packageEncoding   = quote(strip(symget('packageEncoding')),'"');
   packageLicense    = quote(strip(symget('packageLicense')),'"');
+  packageGenerated  = quote(strip(symget('packageGenerated')),'"');
 
   put ' data _null_; '; /* simple "%local" returns error while loading package */
   put '  call symputX("packageName",       ' packageName       ', "L");';
@@ -790,7 +796,8 @@ data _null_;
   put '  call symputX("packageAuthor",     ' packageAuthor     ', "L");';
   put '  call symputX("packageMaintainer", ' packageMaintainer ', "L");';
   put '  call symputX("packageEncoding",   ' packageEncoding   ', "L");';
-  put '  call symputX("packageLicense",    ' packageLicense   ', "L");';
+  put '  call symputX("packageLicense",    ' packageLicense    ', "L");';
+  put '  call symputX("packageGenerated",  ' packageGenerated  ', "L");';
   put ' run; ';
 
   stop;
@@ -893,7 +900,7 @@ data _null_;
   put ' %put NOTE: ' @; put "Loading package &packageName., version &packageVersion., license &packageLicense.; ";
 
   put ' %put NOTE: ' @; put '*** %superq(packageTitle) ***; ';
-  put ' %put NOTE- ' @; put "Generated: %sysfunc(datetime(), datetime21.); ";
+  put ' %put NOTE- ' @; put "Generated: &packageGenerated.; ";
   put ' %put NOTE- ' @; put 'Author(s): %superq(packageAuthor); ';
   put ' %put NOTE- ' @; put 'Maintainer(s): %superq(packageMaintainer); ';
   put ' %put NOTE- ;';
@@ -1094,8 +1101,10 @@ data _null_;
       put '        if (LP_find ne 0) or (LP_find = 0 and . < versN < verRN) then                         ';
       put '         do;                                                                                  ';
       put '          missingPackagr = 1;                                                                 ';
-      put '          put "ERROR: SAS package: " req "is missing! Download it and" ;                      ';
-      put '          put ''ERROR- use  %loadPackage('' name ", requiredVersion = " verR ") to load it." ;';
+      put '          put "ERROR: SAS package: " req "is missing! Download it by hand or if the SAS session";';
+      put '          put "ERROR- has access to the Internet and the package is available at SASPAC repository";';
+      put '          put ''ERROR- use %installPackage('' name +(-1) "(" verR +(-1) ")) to install it."/; ';
+      put '          put ''ERROR- Use %loadPackage('' name +(-1) ", requiredVersion=" verR +(-1) ") to load it."/;';
       put '         end ;                                                                                ';
       put '      end ;                                                                                   ';
       put '      if missingPackagr then call symputX("packageRequiredErrors", 1, "L");                   ';
@@ -1107,8 +1116,10 @@ data _null_;
       put '      do req = ' / packageReqPackages / ' ;                                                   ';
       put '        name = lowcase(strip(kscanx(req, 1, "(")));                                           ';
       put '        vers = compress(kscanx(req,-1, "("), ".", "KD");                                      ';
-      put '        put "ERROR: SAS package " req "is missing! Download/install it and" ;                 ';
-      put '        put ''ERROR- use %loadPackage('' name ", requiredVersion = " vers ") to load it." ;   ';
+      put '        put "ERROR: SAS package " req "is missing! Download it by hand or if the SAS session";';
+      put '        put "ERROR- has access to the Internet and the package is available at SASPAC repository";';
+      put '        put ''ERROR- use %installPackage('' name +(-1) "(" vers +(-1) ")) to install it."/;   ';
+      put '        put ''ERROR- Use %loadPackage('' name +(-1)", requiredVersion=" vers +(-1) ") to load it."/;';
       put '      end ;                                                                                   ';
       put '    end;                                                                                      ';
       put '  stop;                                                                                       ';
@@ -1322,7 +1333,7 @@ data _null_;
       ' !! ''      %put %str(  )when set to the value of `HELP` (upcase letters!) displays this help message.;''' /
 
       ' !! ''      %put - `depList` [technical] contains the list of dependencies required by the package.;''' /
-      ' !! ''      %put - %str(  )for _this_ macro the default value is: `';
+      ' !! ''      %put %str(  )for _this_ instance of the macro the default value is: `';
           %if %superq(packageReqPackages) ne %then
             %do;
               do i = 1 to countw(packageReqPackages, ",", "Q");
@@ -1330,9 +1341,9 @@ data _null_;
                 put reqPackage @;
               end;
             %end; 
-      put '`.;''' /
-      ' !! ''      %put The macro generated: '' !! put(dtCASLudf, datetime19.-L) !! ";"' /
-      ' !! ''      %put with the SAS Packages Framework version 20221215.;''' / 
+      put +(-1) '`.;''' /
+      ' !! ''      %put The macro generated: '' !! put(dtCASLudf, E8601DT19.-L) !! ";"' /
+      ' !! ''      %put with the SAS Packages Framework version 20230112.;''' / 
       ' !! ''      %put ****************************************************************************;''' /
       ' !! ''    %GOTO theEndOfTheMacro;''' / 
       ' !! ''    %end;''' ;
@@ -1495,7 +1506,7 @@ data _null_;
           '      %put %str(  )when set to the value of `ERROR` (the default) prints Error message.;         ' /
 
           '      %put - `depList` [technical] contains the list of dependencies required by the package.;   ' /
-          '      %put - %str(  )for _this_ macro the default value is: `';
+          '      %put %str(  )for _this_ instance of the macro the default value is: `';
           %if %superq(packageReqPackages) ne %then
             %do;
               do i = 1 to countw(packageReqPackages, ",", "Q");
@@ -1503,9 +1514,9 @@ data _null_;
                 put reqPackage @;
               end;
             %end; 
-      put '`.;' /
-          '      %put The macro generated: ''' " !! put(dtIML, datetime19.-L) !! " ''';                   ' / 
-          '      %put with the SAS Packages Framework version 20221215.;                                  ' / 
+      put +(-1) '`.;' /
+          '      %put The macro generated: ''' " !! put(dtIML, E8601DT19.-L) !! " ''';                   ' / 
+          '      %put with the SAS Packages Framework version 20230112.;                                  ' / 
           '      %put ****************************************************************************;       ' /
           '    %GOTO theEndOfTheMacro;                                                                    ' / 
           '    %end;                                                                                      ' / 
@@ -1630,7 +1641,7 @@ data _null_;
   put ' %put NOTE: ' @; put "Data for package &packageName., version &packageVersion., license &packageLicense.; ";
 
   put ' %put NOTE: ' @; put '*** %superq(packageTitle) ***; ';
-  put ' %put NOTE- ' @; put "Generated: %sysfunc(datetime(), datetime21.); ";
+  put ' %put NOTE- ' @; put "Generated: &packageGenerated.; ";
   put ' %put NOTE- ' @; put 'Author(s): %superq(packageAuthor); ';
   put ' %put NOTE- ' @; put 'Maintainer(s): %superq(packageMaintainer); ';
   put ' %put NOTE- ;';
@@ -1938,7 +1949,7 @@ data _null_;
   put ' %put NOTE: '"Preview of the &packageName. package, version &packageVersion., license &packageLicense.;";
 
   put ' %put NOTE: ' @; put '*** %superq(packageTitle) ***; ';
-  put ' %put NOTE- ' @; put "Generated: %sysfunc(datetime(), datetime21.); ";
+  put ' %put NOTE- ' @; put "Generated: &packageGenerated.; ";
   put ' %put NOTE- ' @; put 'Author(s): %superq(packageAuthor); ';
   put ' %put NOTE- ' @; put 'Maintainer(s): %superq(packageMaintainer); ';
   put ' %put NOTE- ;';
@@ -2054,7 +2065,7 @@ data _null_;
   put ' %put NOTE: '"Help for package &packageName., version &packageVersion., license &packageLicense.;";
 
   put ' %put NOTE: ' @; put '*** %superq(packageTitle) ***; ';
-  put ' %put NOTE- ' @; put "Generated: %sysfunc(datetime(), datetime21.); ";
+  put ' %put NOTE- ' @; put "Generated: &packageGenerated.; ";
   put ' %put NOTE- ' @; put 'Author(s): %superq(packageAuthor); ';
   put ' %put NOTE- ' @; put 'Maintainer(s): %superq(packageMaintainer); ';
   put ' %put NOTE- ;';
@@ -2113,7 +2124,7 @@ data _null_;
     put '  end ;                                                                 ';
   %end;
 
-  put 'put "***"; put "* SAS package generated by generatePackage, version 20221215 *"; put "***";';
+  put 'put "***"; put "* SAS package generated by generatePackage, version 20230112 *"; put "***";';
 
   put 'run;                                                                      ' /;
 
@@ -2332,6 +2343,7 @@ filename &zipReferrence. clear;
   %put NOTE: Calculating SHA256 check sum.;
   %put NOTE- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^;
   %put NOTE-;
+
   filename &zipReferrence. "&filesLocation./%lowcase(&packageName.).zip";
   filename &zipReferrence. list;
   %local notesSourceOptions;
@@ -2341,12 +2353,20 @@ filename &zipReferrence. clear;
     set sashelp.vfunc(keep=fncname);
     where fncname = "HASHING_FILE";
     call execute('
-      data the_SHA256_hash_id;
-        SHA256 = HASHING_FILE("SHA256", "&zipReferrence.", 4);
-        label SHA256 = "The SHA256 hash digest for package &packageName.:";
-        put / @7 SHA256= / " ";
-      run;');
-    call execute('proc print data = the_SHA256_hash_id noobs label; run;');
+      data the_SHA256_hash_id;' !!
+        /* F - file */
+        " SHA256 = 'F*' !! HASHING_FILE('SHA256', pathname('&zipReferrence.','F'), 0); " !!
+        ' TYPE="F"; ' !!
+        ' put / @7 SHA256= / " "; output; ' !!
+        /* C  - content */
+        " SHA256 = 'C*' !! HASHING_FILE('SHA256', '&zipReferrence.', 4); " !!
+        ' TYPE="C"; ' !!
+        ' put / @7 SHA256= / " "; output; ' !!
+        ' label ' !! 
+        '  SHA256 = "The SHA256 hash digest for package &packageName.:" ' !!
+        '  TYPE= "Type of hash digest / F = file / C = content"; ' !!
+      'run;');
+    call execute('proc print data = the_SHA256_hash_id noobs label split="/"; run;');
     stop;
   run;
   options &notesSourceOptions.;
diff --git a/SPF/Macros/helppackage.sas b/SPF/Macros/helppackage.sas
index 8a6a408..e81f715 100644
--- a/SPF/Macros/helppackage.sas
+++ b/SPF/Macros/helppackage.sas
@@ -24,7 +24,7 @@
                                        */
 )/secure
 /*** HELP END ***/
-des = 'Macro to get help about SAS package, version 20221215. Run %helpPackage() for help info.'
+des = 'Macro to get help about SAS package, version 20230112. Run %helpPackage() for help info.'
 ;
 %if (%superq(packageName) = ) OR (%qupcase(&packageName.) = HELP) %then
   %do;
@@ -39,7 +39,7 @@ des = 'Macro to get help about SAS package, version 20221215. Run %helpPackage()
     %put ###       This is short help information for the `helpPackage` macro            #;
     %put #-------------------------------------------------------------------------------#;
     %put #                                                                               #;
-    %put # Macro to get help about SAS packages, version `20221215`                      #;
+    %put # Macro to get help about SAS packages, version `20230112`                      #;
     %put #                                                                               #;
     %put # A SAS package is a zip file containing a group                                #;
     %put # of SAS codes (macros, functions, data steps generating                        #;
@@ -169,7 +169,7 @@ TODO:
 - add MD5(&packageName.) value hash instead "package" word in filenames [DONE]
 */
 
-/* Macros to install SAS packages, version 20221215  */
+/* Macros to install SAS packages, version 20230112  */
 /* A SAS package is a zip file containing a group of files
    with SAS code (macros, functions, data steps generating 
    data, etc.) wrapped up together and %INCLUDEed by
diff --git a/SPF/Macros/installpackage.sas b/SPF/Macros/installpackage.sas
index 44b982d..5c1038f 100644
--- a/SPF/Macros/installpackage.sas
+++ b/SPF/Macros/installpackage.sas
@@ -14,7 +14,7 @@
 /secure
 minoperator 
 /*** HELP END ***/
-des = 'Macro to install SAS package, version 20221215. Run %%installPackage() for help info.'
+des = 'Macro to install SAS package, version 20230112. Run %%installPackage() for help info.'
 ;
 %if (%superq(packagesNames) = ) OR (%qupcase(&packagesNames.) = HELP) %then
   %do;
@@ -29,7 +29,7 @@ des = 'Macro to install SAS package, version 20221215. Run %%installPackage() fo
     %put ###       This is short help information for the `installPackage` macro                      #;
     %put #--------------------------------------------------------------------------------------------#;;
     %put #                                                                                            #;
-    %put # Macro to install SAS packages, version `20221215`                                          #;
+    %put # Macro to install SAS packages, version `20230112`                                          #;
     %put #                                                                                            #;
     %put # A SAS package is a zip file containing a group                                             #;
     %put # of SAS codes (macros, functions, data steps generating                                     #;
@@ -458,7 +458,7 @@ des = 'Macro to install SAS package, version 20221215. Run %%installPackage() fo
 
 /* Macro to list SAS packages in packages folder. 
 
-  Version 20221215 
+  Version 20230112 
 
   A SAS package is a zip file containing a group 
   of SAS codes (macros, functions, data steps generating 
diff --git a/SPF/Macros/listpackages.sas b/SPF/Macros/listpackages.sas
index 16085b9..b920893 100644
--- a/SPF/Macros/listpackages.sas
+++ b/SPF/Macros/listpackages.sas
@@ -1,7 +1,7 @@
 /*+listPackages+*/
 
 %macro listPackages()/secure PARMBUFF
-des = 'Macro to list SAS packages from `packages` fileref, type %listPackages(HELP) for help, version 20221215.'
+des = 'Macro to list SAS packages from `packages` fileref, type %listPackages(HELP) for help, version 20230112.'
 ;
 %if %QUPCASE(&SYSPBUFF.) = %str(%(HELP%)) %then
   %do;
@@ -16,7 +16,7 @@ des = 'Macro to list SAS packages from `packages` fileref, type %listPackages(HE
     %put ###       This is short help information for the `listPackages` macro                     #;
     %put #-----------------------------------------------------------------------------------------#;;
     %put #                                                                                         #;
-    %put # Macro to list available SAS packages, version `20221215`                                #;
+    %put # Macro to list available SAS packages, version `20230112`                                #;
     %put #                                                                                         #;
     %put # A SAS package is a zip file containing a group                                          #;
     %put # of SAS codes (macros, functions, data steps generating                                  #;
@@ -166,7 +166,7 @@ options ls = &ls_tmp. ps = &ps_tmp. &notes_tmp. &source_tmp.;
 
 /* Macro to generate SAS packages.
 
-   Version 20221215
+   Version 20230112
 
    A SAS package is a zip file containing a group 
    of SAS codes (macros, functions, data steps generating 
diff --git a/SPF/Macros/loadpackage.sas b/SPF/Macros/loadpackage.sas
index f36264d..9b31eb8 100644
--- a/SPF/Macros/loadpackage.sas
+++ b/SPF/Macros/loadpackage.sas
@@ -31,7 +31,7 @@
                                        */
 )/secure 
 /*** HELP END ***/
-des = 'Macro to load SAS package, version 20221215. Run %loadPackage() for help info.'
+des = 'Macro to load SAS package, version 20230112. Run %loadPackage() for help info.'
 minoperator
 ;
 %if (%superq(packageName) = ) OR (%qupcase(&packageName.) = HELP) %then
@@ -47,7 +47,7 @@ minoperator
     %put ###      This is short help information for the `loadPackage` macro             #;
     %put #-------------------------------------------------------------------------------#;
     %put #                                                                               #;
-    %put # Macro to *load* SAS packages, version `20221215`                              #;
+    %put # Macro to *load* SAS packages, version `20230112`                              #;
     %put #                                                                               #;
     %put # A SAS package is a zip file containing a group                                #;
     %put # of SAS codes (macros, functions, data steps generating                        #;
diff --git a/SPF/Macros/loadpackages.sas b/SPF/Macros/loadpackages.sas
index 89dfe9d..c1235ea 100644
--- a/SPF/Macros/loadpackages.sas
+++ b/SPF/Macros/loadpackages.sas
@@ -11,7 +11,7 @@
                  */
 )/secure 
 /*** HELP END ***/
-des = 'Macro to load multiple SAS packages at one run, version 20221215. Run %loadPackages() for help info.'
+des = 'Macro to load multiple SAS packages at one run, version 20230112. Run %loadPackages() for help info.'
 parmbuff
 ;
 %if (%superq(packagesNames) = ) OR (%qupcase(&packagesNames.) = HELP) %then
@@ -27,7 +27,7 @@ parmbuff
     %put ###      This is short help information for the `loadPackageS` macro            #;
     %put #-------------------------------------------------------------------------------#;
     %put #                                                                               #;
-    %put # Macro wrapper for the loadPackage macro, version `20221215`                   #;
+    %put # Macro wrapper for the loadPackage macro, version `20230112`                   #;
     %put #                                                                               #;
     %put # A SAS package is a zip file containing a group                                #;
     %put # of SAS codes (macros, functions, data steps generating                        #;
diff --git a/SPF/Macros/previewpackage.sas b/SPF/Macros/previewpackage.sas
index 3073694..a13c8f8 100644
--- a/SPF/Macros/previewpackage.sas
+++ b/SPF/Macros/previewpackage.sas
@@ -23,7 +23,7 @@
                                        */
 )/secure
 /*** HELP END ***/
-des = 'Macro to preview content of a SAS package, version 20221215. Run %previewPackage() for help info.'
+des = 'Macro to preview content of a SAS package, version 20230112. Run %previewPackage() for help info.'
 ;
 %if (%superq(packageName) = ) OR (%qupcase(&packageName.) = HELP) %then
   %do;
@@ -38,7 +38,7 @@ des = 'Macro to preview content of a SAS package, version 20221215. Run %preview
     %put ###    This is short help information for the `previewPackage` macro            #;
     %put #-------------------------------------------------------------------------------#;
     %put #                                                                               #;
-    %put # Macro to get previwe of a SAS packages, version `20221215`                    #;
+    %put # Macro to get previwe of a SAS packages, version `20230112`                    #;
     %put #                                                                               #;
     %put # A SAS package is a zip file containing a group                                #;
     %put # of SAS codes (macros, functions, data steps generating                        #;
diff --git a/SPF/Macros/unloadpackage.sas b/SPF/Macros/unloadpackage.sas
index 1b7d060..06b351f 100644
--- a/SPF/Macros/unloadpackage.sas
+++ b/SPF/Macros/unloadpackage.sas
@@ -20,7 +20,7 @@
                                        */
 )/secure
 /*** HELP END ***/
-des = 'Macro to unload SAS package, version 20221215. Run %unloadPackage() for help info.'
+des = 'Macro to unload SAS package, version 20230112. Run %unloadPackage() for help info.'
 ;
 %if (%superq(packageName) = ) OR (%qupcase(&packageName.) = HELP) %then
   %do;
@@ -35,7 +35,7 @@ des = 'Macro to unload SAS package, version 20221215. Run %unloadPackage() for h
     %put ###      This is short help information for the `unloadPackage` macro           #;
     %put #-------------------------------------------------------------------------------#;
     %put #                                                                               #;
-    %put # Macro to unload SAS packages, version `20221215`                              #;
+    %put # Macro to unload SAS packages, version `20230112`                              #;
     %put #                                                                               #;
     %put # A SAS package is a zip file containing a group                                #;
     %put # of SAS codes (macros, functions, data steps generating                        #;
diff --git a/SPF/Macros/verifypackage.sas b/SPF/Macros/verifypackage.sas
index ab6118f..d51735b 100644
--- a/SPF/Macros/verifypackage.sas
+++ b/SPF/Macros/verifypackage.sas
@@ -13,7 +13,7 @@
                                          hashing_file() function, SAS 9.4M6 */
 )/secure 
 /*** HELP END ***/
-des = 'Macro to verify SAS package with the hash digest, version 20221215. Run %verifyPackage() for help info.'
+des = 'Macro to verify SAS package with the hash digest, version 20230112. Run %verifyPackage() for help info.'
 ;
 %if (%superq(packageName) = ) OR (%qupcase(&packageName.) = HELP) %then
   %do;
@@ -28,7 +28,7 @@ des = 'Macro to verify SAS package with the hash digest, version 20221215. Run %
     %put ###      This is short help information for the `verifyPackage` macro           #;
     %put #-------------------------------------------------------------------------------#;
     %put #                                                                               #;
-    %put # Macro to verify SAS package with it hash digest, version `20221215`           #;
+    %put # Macro to verify SAS package with it hash digest, version `20230112`           #;
     %put #                                                                               #;
     %put # A SAS package is a zip file containing a group                                #;
     %put # of SAS codes (macros, functions, data steps generating                        #;
@@ -138,13 +138,21 @@ des = 'Macro to verify SAS package with the hash digest, version 20221215. Run %
           filename &_PackageFileref_. list;
           
           data _null_;
-            SHA256 = HASHING_FILE("SHA256", "&_PackageFileref_.", 4);
-            providedHash = "&hash.";
+            length providedHash $ 100;
+            providedHash = strip(symget("hash"));
+            select;
+              when ( 'F*' = upcase(substr(providedHash,1,2)) ) /* F = file digest */                
+                SHA256 = 'F*' !! HASHING_FILE("SHA256", pathname("&_PackageFileref_.",'F'), 0);
+              when ( 'C*' = upcase(substr(providedHash,1,2)) ) /* C = content digest */                
+                SHA256 = 'C*' !! HASHING_FILE("SHA256", "&_PackageFileref_.", 4);
+              otherwise /* legacy approach, without C or F, digest value equivalent to C */
+                SHA256 = HASHING_FILE("SHA256", "&_PackageFileref_.", 4);
+            end;
             put "Provided Hash: " providedHash;
             put "SHA256 digest: " SHA256;
             put " ";
             
-            if SHA256 = providedHash then
+            if upcase(SHA256) = upcase(providedHash) then
               do;
                 put "NOTE: Package verification SUCCESSFUL."; 
                 put "NOTE- Generated hash is EQUAL to the provided one."; 
diff --git a/SPF/SPFinit.md b/SPF/SPFinit.md
index 23835b6..4861021 100644
--- a/SPF/SPFinit.md
+++ b/SPF/SPFinit.md
@@ -21,7 +21,7 @@ A **SAS package** is an automatically generated, single, stand alone *zip* file
 
 The *purpose of a package* is to be a simple, and easy to access, code sharing medium, which will allow: on the one hand, to separate the code complex dependencies created by the developer from the user experience with the final product and, on the other hand, reduce developer's and user's unnecessary frustration related to a remote deployment process.
 
-In this repository we are presenting the **SAS Packages Framework** which allows to develop and use SAS packages. The latest version of SPF is **`20221215`**.  
+In this repository we are presenting the **SAS Packages Framework** which allows to develop and use SAS packages. The latest version of SPF is **`20230112`**.  
 
 **To get started with SAS Packages** try this [**`Getting Started with SAS Packages`**](https://github.com/yabwon/SAS_PACKAGES/blob/main/SPF/Documentation/Getting_Started_with_SAS_Packages.pdf "Getting Started with SAS Packages") presentation (see the `./SPF/Documentation` directory).
 
@@ -39,7 +39,7 @@ After assigning the directory do not change them when using the SPF since it may
 ##       This is short help information for the `installPackage` macro <a name="installpackage"></a>                     
 --------------------------------------------------------------------------------------------
                                                                                             
- Macro to install SAS packages, version `20221215`                                          
+ Macro to install SAS packages, version `20230112`                                          
                                                                                             
  A SAS package is a zip file containing a group                                             
  of SAS codes (macros, functions, data steps generating                                     
@@ -141,7 +141,7 @@ filename packages "C:/SAS_PACKAGES";
 ##       This is short help information for the `helpPackage` macro <a name="helppackage"></a>           
 -------------------------------------------------------------------------------
                                                                                
- Macro to get help about SAS packages, version `20221215`                      
+ Macro to get help about SAS packages, version `20230112`                      
                                                                                
  A SAS package is a zip file containing a group                                
  of SAS codes (macros, functions, data steps generating                        
@@ -212,7 +212,7 @@ filename packages "C:/SAS_PACKAGES"; %* setup a directory for packages;
 ##      This is short help information for the `loadPackage` macro <a name="loadpackage"></a>            
 -------------------------------------------------------------------------------
                                                                                
- Macro to *load* SAS packages, version `20221215`                              
+ Macro to *load* SAS packages, version `20230112`                              
                                                                                
  A SAS package is a zip file containing a group                                
  of SAS codes (macros, functions, data steps generating                        
@@ -353,7 +353,7 @@ If created, those macros are automatically deleted when the `%unloadPackage()` m
 ##      This is short help information for the `loadPackageS` macro <a name="loadpackages"></a>          
 -------------------------------------------------------------------------------
                                                                                
- Macro wrapper for the loadPackage macro, version `20221215`                   
+ Macro wrapper for the loadPackage macro, version `20230112`                   
                                                                                
  A SAS package is a zip file containing a group                                
  of SAS codes (macros, functions, data steps generating                        
@@ -402,7 +402,7 @@ filename packages "C:/SAS_PACKAGES"; %* setup a directory for packages;
 ##      This is short help information for the `unloadPackage` macro <a name="unloadpackage"></a>          
 -------------------------------------------------------------------------------
                                                                                
- Macro to unload SAS packages, version `20221215`                              
+ Macro to unload SAS packages, version `20230112`                              
                                                                                
  A SAS package is a zip file containing a group                                
  of SAS codes (macros, functions, data steps generating                        
@@ -467,7 +467,7 @@ filename packages "C:/SAS_PACKAGES"; %* setup a directory for packages;
 ##       This is short help information for the `listPackages` macro <a name="listpackages"></a>                    
 -----------------------------------------------------------------------------------------
                                                                                          
- Macro to list available SAS packages, version `20221215`                                
+ Macro to list available SAS packages, version `20230112`                                
                                                                                          
  A SAS package is a zip file containing a group                                          
  of SAS codes (macros, functions, data steps generating                                  
@@ -508,7 +508,7 @@ filename packages "C:/SAS_PACKAGES"; %* setup a directory for packages;
 ##      This is short help information for the `verifyPackage` macro <a name="verifypackage"></a>         
 -------------------------------------------------------------------------------
                                                                                
- Macro to verify SAS package with it hash digest, version `20221215`           
+ Macro to verify SAS package with it hash digest, version `20230112`           
                                                                                
  A SAS package is a zip file containing a group                                
  of SAS codes (macros, functions, data steps generating                        
@@ -562,7 +562,7 @@ filename packages "C:/SAS_PACKAGES"; %* set-up a directory for packages;
 ##    This is short help information for the `previewPackage` macro <a name="previewpackage"></a>
 -------------------------------------------------------------------------------
 
- Macro to get previwe of a SAS packages, version `20221215`
+ Macro to get previwe of a SAS packages, version `20230112`
 
  A SAS package is a zip file containing a group
  of SAS codes (macros, functions, data steps generating
@@ -629,7 +629,7 @@ filename packages "C:/SAS_PACKAGES"; %* setup a directory for packages;
 ##      This is short help information for the `generatePackage` macro <a name="generatepackage"></a>        
 -------------------------------------------------------------------------------
                                                                                
- Macro to generate SAS packages, version `20221215`                            
+ Macro to generate SAS packages, version `20230112`                            
                                                                                
  A SAS package is a zip file containing a group                                
  of SAS codes (macros, functions, data steps generating                        
@@ -813,7 +813,7 @@ All files have to have `.sas` extension. Other files are ignored.
 ##      This is short help information for the `extendPackagesFileref` macro <a name="extendpackagesfileref"></a>        
 -----------------------------------------------------------------------------------------
 
- Macro to list directories pointed by 'packages' fileref, version `20221215`             
+ Macro to list directories pointed by 'packages' fileref, version `20230112`             
                                                                                          
  A SAS package is a zip file containing a group                                          
  of SAS codes (macros, functions, data steps generating                                  
diff --git a/SPF/SPFinit.sas b/SPF/SPFinit.sas
index c3dd9ce..2470c66 100644
--- a/SPF/SPFinit.sas
+++ b/SPF/SPFinit.sas
@@ -42,7 +42,7 @@
    - to unload, or
    - to generate SAS packages.
 
-  Version 20221215.
+  Version 20230112.
   See examples below.
 
   A SAS package is a zip file containing a group of files
@@ -86,7 +86,7 @@
                                        */
 )/secure 
 /*** HELP END ***/
-des = 'Macro to load SAS package, version 20221215. Run %loadPackage() for help info.'
+des = 'Macro to load SAS package, version 20230112. Run %loadPackage() for help info.'
 minoperator
 ;
 %if (%superq(packageName) = ) OR (%qupcase(&packageName.) = HELP) %then
@@ -102,7 +102,7 @@ minoperator
     %put ###      This is short help information for the `loadPackage` macro             #;
     %put #-------------------------------------------------------------------------------#;
     %put #                                                                               #;
-    %put # Macro to *load* SAS packages, version `20221215`                              #;
+    %put # Macro to *load* SAS packages, version `20230112`                              #;
     %put #                                                                               #;
     %put # A SAS package is a zip file containing a group                                #;
     %put # of SAS codes (macros, functions, data steps generating                        #;
@@ -329,7 +329,7 @@ minoperator
                                        */
 )/secure
 /*** HELP END ***/
-des = 'Macro to unload SAS package, version 20221215. Run %unloadPackage() for help info.'
+des = 'Macro to unload SAS package, version 20230112. Run %unloadPackage() for help info.'
 ;
 %if (%superq(packageName) = ) OR (%qupcase(&packageName.) = HELP) %then
   %do;
@@ -344,7 +344,7 @@ des = 'Macro to unload SAS package, version 20221215. Run %unloadPackage() for h
     %put ###      This is short help information for the `unloadPackage` macro           #;
     %put #-------------------------------------------------------------------------------#;
     %put #                                                                               #;
-    %put # Macro to unload SAS packages, version `20221215`                              #;
+    %put # Macro to unload SAS packages, version `20230112`                              #;
     %put #                                                                               #;
     %put # A SAS package is a zip file containing a group                                #;
     %put # of SAS codes (macros, functions, data steps generating                        #;
@@ -489,7 +489,7 @@ des = 'Macro to unload SAS package, version 20221215. Run %unloadPackage() for h
                                        */
 )/secure
 /*** HELP END ***/
-des = 'Macro to get help about SAS package, version 20221215. Run %helpPackage() for help info.'
+des = 'Macro to get help about SAS package, version 20230112. Run %helpPackage() for help info.'
 ;
 %if (%superq(packageName) = ) OR (%qupcase(&packageName.) = HELP) %then
   %do;
@@ -504,7 +504,7 @@ des = 'Macro to get help about SAS package, version 20221215. Run %helpPackage()
     %put ###       This is short help information for the `helpPackage` macro            #;
     %put #-------------------------------------------------------------------------------#;
     %put #                                                                               #;
-    %put # Macro to get help about SAS packages, version `20221215`                      #;
+    %put # Macro to get help about SAS packages, version `20230112`                      #;
     %put #                                                                               #;
     %put # A SAS package is a zip file containing a group                                #;
     %put # of SAS codes (macros, functions, data steps generating                        #;
@@ -634,7 +634,7 @@ TODO:
 - add MD5(&packageName.) value hash instead "package" word in filenames [DONE]
 */
 
-/* Macros to install SAS packages, version 20221215  */
+/* Macros to install SAS packages, version 20230112  */
 /* A SAS package is a zip file containing a group of files
    with SAS code (macros, functions, data steps generating 
    data, etc.) wrapped up together and %INCLUDEed by
@@ -657,7 +657,7 @@ TODO:
 /secure
 minoperator 
 /*** HELP END ***/
-des = 'Macro to install SAS package, version 20221215. Run %%installPackage() for help info.'
+des = 'Macro to install SAS package, version 20230112. Run %%installPackage() for help info.'
 ;
 %if (%superq(packagesNames) = ) OR (%qupcase(&packagesNames.) = HELP) %then
   %do;
@@ -672,7 +672,7 @@ des = 'Macro to install SAS package, version 20221215. Run %%installPackage() fo
     %put ###       This is short help information for the `installPackage` macro                      #;
     %put #--------------------------------------------------------------------------------------------#;;
     %put #                                                                                            #;
-    %put # Macro to install SAS packages, version `20221215`                                          #;
+    %put # Macro to install SAS packages, version `20230112`                                          #;
     %put #                                                                                            #;
     %put # A SAS package is a zip file containing a group                                             #;
     %put # of SAS codes (macros, functions, data steps generating                                     #;
@@ -1101,7 +1101,7 @@ des = 'Macro to install SAS package, version 20221215. Run %%installPackage() fo
 
 /* Macro to list SAS packages in packages folder. 
 
-  Version 20221215 
+  Version 20230112 
 
   A SAS package is a zip file containing a group 
   of SAS codes (macros, functions, data steps generating 
@@ -1122,7 +1122,7 @@ des = 'Macro to install SAS package, version 20221215. Run %%installPackage() fo
 /*+listPackages+*/
 
 %macro listPackages()/secure PARMBUFF
-des = 'Macro to list SAS packages from `packages` fileref, type %listPackages(HELP) for help, version 20221215.'
+des = 'Macro to list SAS packages from `packages` fileref, type %listPackages(HELP) for help, version 20230112.'
 ;
 %if %QUPCASE(&SYSPBUFF.) = %str(%(HELP%)) %then
   %do;
@@ -1137,7 +1137,7 @@ des = 'Macro to list SAS packages from `packages` fileref, type %listPackages(HE
     %put ###       This is short help information for the `listPackages` macro                     #;
     %put #-----------------------------------------------------------------------------------------#;;
     %put #                                                                                         #;
-    %put # Macro to list available SAS packages, version `20221215`                                #;
+    %put # Macro to list available SAS packages, version `20230112`                                #;
     %put #                                                                                         #;
     %put # A SAS package is a zip file containing a group                                          #;
     %put # of SAS codes (macros, functions, data steps generating                                  #;
@@ -1287,7 +1287,7 @@ options ls = &ls_tmp. ps = &ps_tmp. &notes_tmp. &source_tmp.;
 
 /* Macro to generate SAS packages.
 
-   Version 20221215
+   Version 20230112
 
    A SAS package is a zip file containing a group 
    of SAS codes (macros, functions, data steps generating 
@@ -1324,7 +1324,7 @@ options ls = &ls_tmp. ps = &ps_tmp. &notes_tmp. &source_tmp.;
                     default value 1 means "delete tests work" */
 )/ secure minoperator
 /*** HELP END ***/
-des = 'Macro to generate SAS packages, version 20221215. Run %generatePackage() for help info.'
+des = 'Macro to generate SAS packages, version 20230112. Run %generatePackage() for help info.'
 ;
 %if (%superq(filesLocation) = ) OR (%qupcase(&filesLocation.) = HELP) %then
   %do;
@@ -1339,7 +1339,7 @@ des = 'Macro to generate SAS packages, version 20221215. Run %generatePackage()
     %put ###      This is short help information for the `generatePackage` macro         #;
     %put #-------------------------------------------------------------------------------#;
     %put #                                                                               #;
-    %put # Macro to generate SAS packages, version `20221215`                            #;
+    %put # Macro to generate SAS packages, version `20230112`                            #;
     %put #                                                                               #;
     %put # A SAS package is a zip file containing a group                                #;
     %put # of SAS codes (macros, functions, data steps generating                        #;
@@ -1453,6 +1453,11 @@ filename &_LIC_.   "&filesLocation./license.sas" lrecl = 1024;
         otherwise;
       end;
     run;
+    /* package generation timestamp, in iso8601 YYYY-MM-DDThh:mm:ss */
+    %local packageGenerated;
+    %let packageGenerated = %sysfunc(datetime(), E8601DT19.);
+    %put NOTE: &=packageGenerated.;
+
     options &qlenmax_fstimer_tmp.;
  
     /* test for required descriptors */
@@ -1981,8 +1986,8 @@ proc contents data = &filesWithCodes.;
 run;
 */
 title1 "Package location is: &filesLocation.";
-title2 "User: &SYSUSERID., datetime: %qsysfunc(datetime(), datetime21.), SAS version: &SYSVLONG4.";
-title3 "Package encoding: '&packageEncoding.', session encoding: '&SYSENCODING.'.";
+title2 "User: &SYSUSERID., Datetime: &packageGenerated., SAS version: &SYSVLONG4.";
+title3 "Package encoding: '&packageEncoding.', Session encoding: '&SYSENCODING.'.";
 title4 " ______________________________ ";
 title5 "List of files for package: &packageName. (version &packageVersion.), license: &packageLicense.";
 title6 "MD5 hashed fileref of package lowcase name: &_PackageFileref_.";
@@ -2073,7 +2078,7 @@ data _null_;
     end;
   file &zipReferrence.(packagemetadata.sas) encoding = &packageEncoding.;
 
-  length packageName $ 32 packageVersion $ 24
+  length packageName $ 32 packageVersion packageGenerated $ 24
          packageTitle packageAuthor packageMaintainer $ 2048
          packageEncoding $ 8 packageLicense $ 128;
   packageName       = quote(strip(symget('packageName')),'"');
@@ -2083,6 +2088,7 @@ data _null_;
   packageMaintainer = quote(strip(symget('packageMaintainer')),'"');
   packageEncoding   = quote(strip(symget('packageEncoding')),'"');
   packageLicense    = quote(strip(symget('packageLicense')),'"');
+  packageGenerated  = quote(strip(symget('packageGenerated')),'"');
 
   put ' data _null_; '; /* simple "%local" returns error while loading package */
   put '  call symputX("packageName",       ' packageName       ', "L");';
@@ -2091,7 +2097,8 @@ data _null_;
   put '  call symputX("packageAuthor",     ' packageAuthor     ', "L");';
   put '  call symputX("packageMaintainer", ' packageMaintainer ', "L");';
   put '  call symputX("packageEncoding",   ' packageEncoding   ', "L");';
-  put '  call symputX("packageLicense",    ' packageLicense   ', "L");';
+  put '  call symputX("packageLicense",    ' packageLicense    ', "L");';
+  put '  call symputX("packageGenerated",  ' packageGenerated  ', "L");';
   put ' run; ';
 
   stop;
@@ -2194,7 +2201,7 @@ data _null_;
   put ' %put NOTE: ' @; put "Loading package &packageName., version &packageVersion., license &packageLicense.; ";
 
   put ' %put NOTE: ' @; put '*** %superq(packageTitle) ***; ';
-  put ' %put NOTE- ' @; put "Generated: %sysfunc(datetime(), datetime21.); ";
+  put ' %put NOTE- ' @; put "Generated: &packageGenerated.; ";
   put ' %put NOTE- ' @; put 'Author(s): %superq(packageAuthor); ';
   put ' %put NOTE- ' @; put 'Maintainer(s): %superq(packageMaintainer); ';
   put ' %put NOTE- ;';
@@ -2395,8 +2402,10 @@ data _null_;
       put '        if (LP_find ne 0) or (LP_find = 0 and . < versN < verRN) then                         ';
       put '         do;                                                                                  ';
       put '          missingPackagr = 1;                                                                 ';
-      put '          put "ERROR: SAS package: " req "is missing! Download it and" ;                      ';
-      put '          put ''ERROR- use  %loadPackage('' name ", requiredVersion = " verR ") to load it." ;';
+      put '          put "ERROR: SAS package: " req "is missing! Download it by hand or if the SAS session";';
+      put '          put "ERROR- has access to the Internet and the package is available at SASPAC repository";';
+      put '          put ''ERROR- use %installPackage('' name +(-1) "(" verR +(-1) ")) to install it."/; ';
+      put '          put ''ERROR- Use %loadPackage('' name +(-1) ", requiredVersion=" verR +(-1) ") to load it."/;';
       put '         end ;                                                                                ';
       put '      end ;                                                                                   ';
       put '      if missingPackagr then call symputX("packageRequiredErrors", 1, "L");                   ';
@@ -2408,8 +2417,10 @@ data _null_;
       put '      do req = ' / packageReqPackages / ' ;                                                   ';
       put '        name = lowcase(strip(kscanx(req, 1, "(")));                                           ';
       put '        vers = compress(kscanx(req,-1, "("), ".", "KD");                                      ';
-      put '        put "ERROR: SAS package " req "is missing! Download/install it and" ;                 ';
-      put '        put ''ERROR- use %loadPackage('' name ", requiredVersion = " vers ") to load it." ;   ';
+      put '        put "ERROR: SAS package " req "is missing! Download it by hand or if the SAS session";';
+      put '        put "ERROR- has access to the Internet and the package is available at SASPAC repository";';
+      put '        put ''ERROR- use %installPackage('' name +(-1) "(" vers +(-1) ")) to install it."/;   ';
+      put '        put ''ERROR- Use %loadPackage('' name +(-1)", requiredVersion=" vers +(-1) ") to load it."/;';
       put '      end ;                                                                                   ';
       put '    end;                                                                                      ';
       put '  stop;                                                                                       ';
@@ -2623,7 +2634,7 @@ data _null_;
       ' !! ''      %put %str(  )when set to the value of `HELP` (upcase letters!) displays this help message.;''' /
 
       ' !! ''      %put - `depList` [technical] contains the list of dependencies required by the package.;''' /
-      ' !! ''      %put - %str(  )for _this_ macro the default value is: `';
+      ' !! ''      %put %str(  )for _this_ instance of the macro the default value is: `';
           %if %superq(packageReqPackages) ne %then
             %do;
               do i = 1 to countw(packageReqPackages, ",", "Q");
@@ -2631,9 +2642,9 @@ data _null_;
                 put reqPackage @;
               end;
             %end; 
-      put '`.;''' /
-      ' !! ''      %put The macro generated: '' !! put(dtCASLudf, datetime19.-L) !! ";"' /
-      ' !! ''      %put with the SAS Packages Framework version 20221215.;''' / 
+      put +(-1) '`.;''' /
+      ' !! ''      %put The macro generated: '' !! put(dtCASLudf, E8601DT19.-L) !! ";"' /
+      ' !! ''      %put with the SAS Packages Framework version 20230112.;''' / 
       ' !! ''      %put ****************************************************************************;''' /
       ' !! ''    %GOTO theEndOfTheMacro;''' / 
       ' !! ''    %end;''' ;
@@ -2796,7 +2807,7 @@ data _null_;
           '      %put %str(  )when set to the value of `ERROR` (the default) prints Error message.;         ' /
 
           '      %put - `depList` [technical] contains the list of dependencies required by the package.;   ' /
-          '      %put - %str(  )for _this_ macro the default value is: `';
+          '      %put %str(  )for _this_ instance of the macro the default value is: `';
           %if %superq(packageReqPackages) ne %then
             %do;
               do i = 1 to countw(packageReqPackages, ",", "Q");
@@ -2804,9 +2815,9 @@ data _null_;
                 put reqPackage @;
               end;
             %end; 
-      put '`.;' /
-          '      %put The macro generated: ''' " !! put(dtIML, datetime19.-L) !! " ''';                   ' / 
-          '      %put with the SAS Packages Framework version 20221215.;                                  ' / 
+      put +(-1) '`.;' /
+          '      %put The macro generated: ''' " !! put(dtIML, E8601DT19.-L) !! " ''';                   ' / 
+          '      %put with the SAS Packages Framework version 20230112.;                                  ' / 
           '      %put ****************************************************************************;       ' /
           '    %GOTO theEndOfTheMacro;                                                                    ' / 
           '    %end;                                                                                      ' / 
@@ -2931,7 +2942,7 @@ data _null_;
   put ' %put NOTE: ' @; put "Data for package &packageName., version &packageVersion., license &packageLicense.; ";
 
   put ' %put NOTE: ' @; put '*** %superq(packageTitle) ***; ';
-  put ' %put NOTE- ' @; put "Generated: %sysfunc(datetime(), datetime21.); ";
+  put ' %put NOTE- ' @; put "Generated: &packageGenerated.; ";
   put ' %put NOTE- ' @; put 'Author(s): %superq(packageAuthor); ';
   put ' %put NOTE- ' @; put 'Maintainer(s): %superq(packageMaintainer); ';
   put ' %put NOTE- ;';
@@ -3239,7 +3250,7 @@ data _null_;
   put ' %put NOTE: '"Preview of the &packageName. package, version &packageVersion., license &packageLicense.;";
 
   put ' %put NOTE: ' @; put '*** %superq(packageTitle) ***; ';
-  put ' %put NOTE- ' @; put "Generated: %sysfunc(datetime(), datetime21.); ";
+  put ' %put NOTE- ' @; put "Generated: &packageGenerated.; ";
   put ' %put NOTE- ' @; put 'Author(s): %superq(packageAuthor); ';
   put ' %put NOTE- ' @; put 'Maintainer(s): %superq(packageMaintainer); ';
   put ' %put NOTE- ;';
@@ -3355,7 +3366,7 @@ data _null_;
   put ' %put NOTE: '"Help for package &packageName., version &packageVersion., license &packageLicense.;";
 
   put ' %put NOTE: ' @; put '*** %superq(packageTitle) ***; ';
-  put ' %put NOTE- ' @; put "Generated: %sysfunc(datetime(), datetime21.); ";
+  put ' %put NOTE- ' @; put "Generated: &packageGenerated.; ";
   put ' %put NOTE- ' @; put 'Author(s): %superq(packageAuthor); ';
   put ' %put NOTE- ' @; put 'Maintainer(s): %superq(packageMaintainer); ';
   put ' %put NOTE- ;';
@@ -3414,7 +3425,7 @@ data _null_;
     put '  end ;                                                                 ';
   %end;
 
-  put 'put "***"; put "* SAS package generated by generatePackage, version 20221215 *"; put "***";';
+  put 'put "***"; put "* SAS package generated by generatePackage, version 20230112 *"; put "***";';
 
   put 'run;                                                                      ' /;
 
@@ -3633,6 +3644,7 @@ filename &zipReferrence. clear;
   %put NOTE: Calculating SHA256 check sum.;
   %put NOTE- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^;
   %put NOTE-;
+
   filename &zipReferrence. "&filesLocation./%lowcase(&packageName.).zip";
   filename &zipReferrence. list;
   %local notesSourceOptions;
@@ -3642,12 +3654,20 @@ filename &zipReferrence. clear;
     set sashelp.vfunc(keep=fncname);
     where fncname = "HASHING_FILE";
     call execute('
-      data the_SHA256_hash_id;
-        SHA256 = HASHING_FILE("SHA256", "&zipReferrence.", 4);
-        label SHA256 = "The SHA256 hash digest for package &packageName.:";
-        put / @7 SHA256= / " ";
-      run;');
-    call execute('proc print data = the_SHA256_hash_id noobs label; run;');
+      data the_SHA256_hash_id;' !!
+        /* F - file */
+        " SHA256 = 'F*' !! HASHING_FILE('SHA256', pathname('&zipReferrence.','F'), 0); " !!
+        ' TYPE="F"; ' !!
+        ' put / @7 SHA256= / " "; output; ' !!
+        /* C  - content */
+        " SHA256 = 'C*' !! HASHING_FILE('SHA256', '&zipReferrence.', 4); " !!
+        ' TYPE="C"; ' !!
+        ' put / @7 SHA256= / " "; output; ' !!
+        ' label ' !! 
+        '  SHA256 = "The SHA256 hash digest for package &packageName.:" ' !!
+        '  TYPE= "Type of hash digest / F = file / C = content"; ' !!
+      'run;');
+    call execute('proc print data = the_SHA256_hash_id noobs label split="/"; run;');
     stop;
   run;
   options &notesSourceOptions.;
@@ -4278,7 +4298,7 @@ TODO: (in Polish)
                  */
 )/secure 
 /*** HELP END ***/
-des = 'Macro to load multiple SAS packages at one run, version 20221215. Run %loadPackages() for help info.'
+des = 'Macro to load multiple SAS packages at one run, version 20230112. Run %loadPackages() for help info.'
 parmbuff
 ;
 %if (%superq(packagesNames) = ) OR (%qupcase(&packagesNames.) = HELP) %then
@@ -4294,7 +4314,7 @@ parmbuff
     %put ###      This is short help information for the `loadPackageS` macro            #;
     %put #-------------------------------------------------------------------------------#;
     %put #                                                                               #;
-    %put # Macro wrapper for the loadPackage macro, version `20221215`                   #;
+    %put # Macro wrapper for the loadPackage macro, version `20230112`                   #;
     %put #                                                                               #;
     %put # A SAS package is a zip file containing a group                                #;
     %put # of SAS codes (macros, functions, data steps generating                        #;
@@ -4391,7 +4411,7 @@ parmbuff
                                          hashing_file() function, SAS 9.4M6 */
 )/secure 
 /*** HELP END ***/
-des = 'Macro to verify SAS package with the hash digest, version 20221215. Run %verifyPackage() for help info.'
+des = 'Macro to verify SAS package with the hash digest, version 20230112. Run %verifyPackage() for help info.'
 ;
 %if (%superq(packageName) = ) OR (%qupcase(&packageName.) = HELP) %then
   %do;
@@ -4406,7 +4426,7 @@ des = 'Macro to verify SAS package with the hash digest, version 20221215. Run %
     %put ###      This is short help information for the `verifyPackage` macro           #;
     %put #-------------------------------------------------------------------------------#;
     %put #                                                                               #;
-    %put # Macro to verify SAS package with it hash digest, version `20221215`           #;
+    %put # Macro to verify SAS package with it hash digest, version `20230112`           #;
     %put #                                                                               #;
     %put # A SAS package is a zip file containing a group                                #;
     %put # of SAS codes (macros, functions, data steps generating                        #;
@@ -4516,13 +4536,21 @@ des = 'Macro to verify SAS package with the hash digest, version 20221215. Run %
           filename &_PackageFileref_. list;
           
           data _null_;
-            SHA256 = HASHING_FILE("SHA256", "&_PackageFileref_.", 4);
-            providedHash = "&hash.";
+            length providedHash $ 100;
+            providedHash = strip(symget("hash"));
+            select;
+              when ( 'F*' = upcase(substr(providedHash,1,2)) ) /* F = file digest */                
+                SHA256 = 'F*' !! HASHING_FILE("SHA256", pathname("&_PackageFileref_.",'F'), 0);
+              when ( 'C*' = upcase(substr(providedHash,1,2)) ) /* C = content digest */                
+                SHA256 = 'C*' !! HASHING_FILE("SHA256", "&_PackageFileref_.", 4);
+              otherwise /* legacy approach, without C or F, digest value equivalent to C */
+                SHA256 = HASHING_FILE("SHA256", "&_PackageFileref_.", 4);
+            end;
             put "Provided Hash: " providedHash;
             put "SHA256 digest: " SHA256;
             put " ";
             
-            if SHA256 = providedHash then
+            if upcase(SHA256) = upcase(providedHash) then
               do;
                 put "NOTE: Package verification SUCCESSFUL."; 
                 put "NOTE- Generated hash is EQUAL to the provided one."; 
@@ -4577,7 +4605,7 @@ des = 'Macro to verify SAS package with the hash digest, version 20221215. Run %
                                        */
 )/secure
 /*** HELP END ***/
-des = 'Macro to preview content of a SAS package, version 20221215. Run %previewPackage() for help info.'
+des = 'Macro to preview content of a SAS package, version 20230112. Run %previewPackage() for help info.'
 ;
 %if (%superq(packageName) = ) OR (%qupcase(&packageName.) = HELP) %then
   %do;
@@ -4592,7 +4620,7 @@ des = 'Macro to preview content of a SAS package, version 20221215. Run %preview
     %put ###    This is short help information for the `previewPackage` macro            #;
     %put #-------------------------------------------------------------------------------#;
     %put #                                                                               #;
-    %put # Macro to get previwe of a SAS packages, version `20221215`                    #;
+    %put # Macro to get previwe of a SAS packages, version `20230112`                    #;
     %put #                                                                               #;
     %put # A SAS package is a zip file containing a group                                #;
     %put # of SAS codes (macros, functions, data steps generating                        #;
@@ -4719,7 +4747,7 @@ des = 'Macro to preview content of a SAS package, version 20221215. Run %preview
              when empty the "packages" value is used */
 )/secure
 /*** HELP END ***/
-des = 'Macro to list directories pointed by "packages" fileref, version 20221215. Run %extendPackagesFileref(HELP) for help info.'
+des = 'Macro to list directories pointed by "packages" fileref, version 20230112. Run %extendPackagesFileref(HELP) for help info.'
 ;
 
 %if %QUPCASE(&packages.) = HELP %then
@@ -4735,7 +4763,7 @@ des = 'Macro to list directories pointed by "packages" fileref, version 20221215
     %put ###       This is short help information for the `extendPackagesFileref` macro            #;
     %put #-----------------------------------------------------------------------------------------#;;
     %put #                                                                                         #;
-    %put # Macro to list directories pointed by 'packages' fileref, version `20221215`             #;
+    %put # Macro to list directories pointed by 'packages' fileref, version `20230112`             #;
     %put #                                                                                         #;
     %put # A SAS package is a zip file containing a group                                          #;
     %put # of SAS codes (macros, functions, data steps generating                                  #;