diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 91babc17efe..b9aab4928c1 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -284,11 +284,12 @@ repos:
           (dev/build/perl/virtualmin/dolibarr.pl
           )$
         args: [ --tabs, --nola ]
-  - repo: https://github.com/henryykt/pre-commit-perl
-    rev: v0.0.5
-    hooks:
-      - id: perlcritic
-        # virtualmin excuded - reason https://github.com/Dolibarr/dolibarr/pull/36370#issuecomment-3565101823
-        exclude: (?x)^
-          (dev/build/perl/virtualmin/dolibarr.pl
-          )$
+
+  #- repo: https://github.com/henryykt/pre-commit-perl
+  #  rev: v0.0.5
+  #  hooks:
+  #    - id: perlcritic
+  #      # virtualmin excluded - reason https://github.com/Dolibarr/dolibarr/pull/36370#issuecomment-3565101823
+  #      exclude: (?x)^
+  #        (dev/build/perl/virtualmin/dolibarr.pl
+  #        )$
diff --git a/dev/build/.gitignore b/dev/build/.gitignore
index 54c5d8be9c3..6c69990aaf4 100644
--- a/dev/build/.gitignore
+++ b/dev/build/.gitignore
@@ -7,3 +7,4 @@
 /dolibarr-*.zip
 /*.exe
 /html
+/makepack-dolibarr.pl.bak
diff --git a/dev/build/generate_filelist_xml.php b/dev/build/generate_filelist_xml.php
index 9ecf3751344..fb0b976a12d 100755
--- a/dev/build/generate_filelist_xml.php
+++ b/dev/build/generate_filelist_xml.php
@@ -40,6 +40,8 @@ if (substr($sapi_type, 0, 3) == 'cgi') {
 
 define('DOL_DOCUMENT_ROOT', dirname(dirname($path)).'/htdocs');
 
+$algo = 'sha256';
+
 require_once $path."../../htdocs/master.inc.php";
 require_once DOL_DOCUMENT_ROOT."/core/lib/files.lib.php";
 
@@ -231,7 +233,7 @@ if ($release) {
 	$gitcommit = trim($fileforgitcontent);
 
 	fputs($fp, '<?xml version="1.0" encoding="UTF-8" ?>'."\n");
-	fputs($fp, '<checksum_list version="'.$release.'" date="'.dol_print_date(dol_now(), 'dayhourrfc').'" generator="'.$script_file.'" gitcommit="'.$gitcommit.'">'."\n");
+	fputs($fp, '<checksum_list version="'.$release.'" date="'.dol_print_date(dol_now(), 'dayhourrfc').'" generator="'.$script_file.'" algo="'.$algo.'" gitcommit="'.$gitcommit.'">'."\n");
 
 	foreach ($includeconstants as $countrycode => $tmp) {
 		fputs($fp, '<dolibarr_constants country="'.$countrycode.'">'."\n");
@@ -265,9 +267,9 @@ if ($release) {
 			$needtoclose = 1;
 		}
 		if (filetype($file) == "file") {
-			$md5 = md5_file($file);
-			$checksumconcat[] = $md5;
-			fputs($fp, '    <md5file name="'.basename($file).'" size="'.filesize($file).'">'.$md5.'</md5file>'."\n");
+			$hashoffile = hash_file($algo, $file);
+			$checksumconcat[] = $hashoffile;
+			fputs($fp, '    <'.$algo.'file name="'.basename($file).'" size="'.filesize($file).'">'.$hashoffile.'</'.$algo.'file>'."\n");
 		}
 	}
 	if ($needtoclose) {
@@ -277,10 +279,10 @@ if ($release) {
 	fputs($fp, '</dolibarr_htdocs_dir>'."\n");
 
 	asort($checksumconcat); // Sort list of checksum
-	$md5htdocsdir = md5(join(',', $checksumconcat));
+	$hashhtdocsdir = hash($algo, join(',', $checksumconcat));
 
 	fputs($fp, '<dolibarr_htdocs_dir_checksum>'."\n");
-	fputs($fp, $md5htdocsdir."\n");
+	fputs($fp, $hashhtdocsdir."\n");
 	fputs($fp, '</dolibarr_htdocs_dir_checksum>'."\n\n");
 
 
@@ -308,9 +310,9 @@ if ($release) {
 			$needtoclose = 1;
 		}
 		if (filetype($file) == "file") {
-			$md5 = md5_file($file);
-			$checksumconcat[] = $md5;
-			fputs($fp, '    <md5file name="'.basename($file).'" size="'.filesize($file).'">'.$md5.'</md5file>'."\n");
+			$hashoffile = hash_file($algo, $file);
+			$checksumconcat[] = $hashoffile;
+			fputs($fp, '    <'.$algo.'file name="'.basename($file).'" size="'.filesize($file).'">'.$hashoffile.'</'.$algo.'file>'."\n");
 		}
 	}
 	if ($needtoclose) {
@@ -320,10 +322,10 @@ if ($release) {
 	fputs($fp, '</dolibarr_scripts_dir>'."\n");
 
 	asort($checksumconcat); // Sort list of checksum
-	$md5scriptsdir = md5(join(',', $checksumconcat));
+	$hashscriptsdir = hash($algo, join(',', $checksumconcat));
 
 	fputs($fp, '<dolibarr_scripts_dir_checksum>'."\n");
-	fputs($fp, $md5scriptsdir."\n");
+	fputs($fp, $hashscriptsdir."\n");
 	fputs($fp, '</dolibarr_scripts_dir_checksum>'."\n\n");
 }
 
@@ -371,10 +373,10 @@ foreach ($arrayofunalterablefiles as $entry) {
 				$needtoclose = 1;
 			}
 			if (filetype($file) == "file") {
-				$md5 = md5_file($file);
-				$checksumconcat[] = $md5;
+				$hashoffile = hash_file($algo, $file);
+				$checksumconcat[] = $hashoffile;
 				if ($release) {
-					fputs($fp, '    <md5file name="'.basename($file).'" size="'.filesize($file).'">'.$md5.'</md5file>'."\n");
+					fputs($fp, '    <'.$algo.'file name="'.basename($file).'" size="'.filesize($file).'">'.$hashoffile.'</'.$algo.'file>'."\n");
 				}
 			}
 		}
@@ -407,10 +409,10 @@ foreach ($arrayofunalterablefiles as $entry) {
 			$needtoclose = 1;
 		}
 		if (filetype($file) == "file") {
-			$md5 = md5_file($file);
-			$checksumconcat[] = $md5;
+			$hashoffile = hash_file($algo, $file);
+			$checksumconcat[] = $hashoffile;
 			if ($release) {
-				fputs($fp, '    <md5file name="'.basename($file).'" size="'.filesize($file).'">'.$md5.'</md5file>'."\n");
+				fputs($fp, '    <'.$algo.'file name="'.basename($file).'" size="'.filesize($file).'">'.$hashoffile.'</'.$algo.'file>'."\n");
 			}
 		}
 		if ($needtoclose) {
@@ -423,13 +425,13 @@ foreach ($arrayofunalterablefiles as $entry) {
 }
 
 asort($checksumconcat); // Sort list of checksum
-$md5unalterable_files = md5(join(',', $checksumconcat));
+$hashunalterable_files = hash($algo, join(',', $checksumconcat));
 
 if ($release) {
 	fputs($fp, '</dolibarr_unalterable_files>'."\n");
 
 	fputs($fp, '<dolibarr_unalterable_files_checksum>'."\n");
-	fputs($fp, $md5unalterable_files."\n");
+	fputs($fp, $hashunalterable_files."\n");
 	fputs($fp, '</dolibarr_unalterable_files_checksum>'."\n\n");
 
 	// End of file
@@ -443,9 +445,9 @@ print "\n";
 if ($release) {
 	if (empty($buildzip)) {
 		print "File ".$outputfile." generated.\n";
-		print "Signature for htdocs files: ".$md5htdocsdir."\n";
-		print "Signature for scripts files: ".$md5scriptsdir."\n";
-		print "Signature for the ".count($checksumconcat)." unalterable files: ".$md5unalterable_files."\n";
+		print "Signature for htdocs files: ".$hashhtdocsdir."\n";
+		print "Signature for scripts files: ".$hashscriptsdir."\n";
+		print "Signature for the ".count($checksumconcat)." unalterable files: ".$hashunalterable_files."\n";
 	} else {
 		if ($buildzip == '1' || $buildzip == 'zip') {
 			$result = dol_compress_file($outputfile, $outputfile.'.zip', 'zip');
@@ -464,7 +466,7 @@ if ($release) {
 }
 
 if ($checklock) {
-	print "Signature for unalterable files: ".$md5unalterable_files."\n";
+	print "Signature for unalterable files: ".$algo." ".$hashunalterable_files."\n";
 
 	$lockedfile = DOL_DOCUMENT_ROOT.'/../dev/lockedfiles.txt';
 	$checksuminlockedfile = '';
@@ -475,15 +477,15 @@ if ($checklock) {
 		// Now we check the content of lockedfiles.txt
 		$arraylocked = file($lockedfile);
 		foreach ($arraylocked as $line) {
-			$tmparray = preg_split("/\s+/", $line, 3);
-			if ($tmparray[0] == $checklockmajorversion) {
-				$checksuminlockedfile = $tmparray[2];
+			$tmparray = preg_split("/\s+/", $line, 4);
+			if ($tmparray[0] == $checklockmajorversion && $tmparray[2] == $algo) {
+				$checksuminlockedfile = $tmparray[3];
 			}
 		}
 		if (empty($checksuminlockedfile)) {
-			print "The major version ".$checklockmajorversion." is not locked on the scope ".$checksource." (file found but no matching entry found into dev/lockedfiles.txt).\n";
-		} elseif ($checksuminlockedfile != $md5unalterable_files) {
-			print "The major version ".$checklockmajorversion." is locked on scope '".$checksource."' to checksum ".$checksuminlockedfile."\n";
+			print "The major version ".$checklockmajorversion." is not locked on the scope '".$checksource."' (file found but no matching entry found into dev/lockedfiles.txt).\n";
+		} elseif ($checksuminlockedfile != $hashunalterable_files) {
+			print "The major version ".$checklockmajorversion." is locked on scope '".$checksource."' to checksum ".$algo." ".$checksuminlockedfile."\n";
 			if ($checklockmajorversion != $checksource) {
 				print "The checksum now differs from the locked one, so we return an error.\n";
 				print "\n";
diff --git a/dev/build/makepack-dolibarr.pl b/dev/build/makepack-dolibarr.pl
index 6aa331f050d..29b1285cce0 100755
--- a/dev/build/makepack-dolibarr.pl
+++ b/dev/build/makepack-dolibarr.pl
@@ -14,7 +14,7 @@
 #----------------------------------------------------------------------------
 ## no critic (InputOutput::ProhibitExplicitStdin,InputOutput::RequireBriefOpen)
 
-use strict;
+#use strict;
 use warnings;
 use Cwd;
 use Term::ANSIColor;
diff --git a/dev/lockedfiles.txt b/dev/lockedfiles.txt
index 687076e05ab..656c64e857e 100644
--- a/dev/lockedfiles.txt
+++ b/dev/lockedfiles.txt
@@ -2,6 +2,6 @@
 This file is the list of the signatures of some set of files locked to block a commit if files are tried to be modified for a given version.
 It is used by the CI or the script to check and guarantee that no change is done on a given scope of files.
 
-Version		Scope						Signature (generated by dev/build/generate_filelist_xml.php) that must remain unchanged for this couple version/scope
+Version		Scope						Algo	Signature (generated by dev/build/generate_filelist_xml.php) that must remain unchanged for this couple version/scope
 
-x.0.0		unalterable_files			123456
+23.0.0		unalterable_files			sha256	123456
diff --git a/htdocs/blockedlog/admin/filecheck.php b/htdocs/blockedlog/admin/filecheck.php
index 7045dc93e3b..87c976b9f7f 100644
--- a/htdocs/blockedlog/admin/filecheck.php
+++ b/htdocs/blockedlog/admin/filecheck.php
@@ -233,6 +233,9 @@ if (empty($error) && !empty($xml)) {
 	$file_list = array();
 	$out = '';
 
+	//$algo = 'md5';		// For v22-
+	$algo = 'sha256';		// For v23+
+
 	// Forced constants
 	if (is_object($xml->dolibarr_constants[0]) || $mode == 'unalterable') {
 		$out .= load_fiche_titre($langs->trans("ForcedConstants"));
@@ -349,6 +352,7 @@ if (empty($error) && !empty($xml)) {
 		$onlymodifiedorremoved = 0;
 	}
 
+
 	// Scan htdocs
 	if (is_object($listoffilestoanalyze)) {
 		// @phan-suppress-next-line PhanTypeArraySuspicious
@@ -361,15 +365,15 @@ if (empty($error) && !empty($xml)) {
 
 		// Fill file_list with files in signature, new files, modified files
 		getFilesUpdated($file_list, $listoffilestoanalyze, '', DOL_DOCUMENT_ROOT, $checksumconcat); // Fill array $file_list
-		'@phan-var-force array{insignature:string[],missing?:array<array{filename:string,expectedmd5:string,expectedsize:string}>,updated:array<array{filename:string,expectedmd5:string,expectedsize:string,md5:string}>} $file_list';
+		'@phan-var-force array{insignature:string[],missing?:array<array{filename:string,expectedhash:string,expectedsize:string,algo:string}>,updated:array<array{filename:string,expectedhash:string,expectedsize:string,hash:string,algo:string}>} $file_list';
 
 		// Complete with list of new files into $file_list['added']
-		if ($onlymodifiedorremoved) {
+		if (empty($onlymodifiedorremoved)) {
 			foreach ($scanfiles as $valfile) {
 				$tmprelativefilename = preg_replace('/^'.preg_quote(DOL_DOCUMENT_ROOT, '/').'/', '', $valfile['fullname']);
 				if (!in_array($tmprelativefilename, $file_list['insignature'])) {
-					$md5newfile = @md5_file($valfile['fullname']); // Can fails if we don't have permission to open/read file
-					$file_list['added'][] = array('filename' => $tmprelativefilename, 'md5' => $md5newfile);
+					$hashnewfile = @hash_file($algo, $valfile['fullname']); // Can fails if we don't have permission to open/read file
+					$file_list['added'][] = array('filename' => $tmprelativefilename, 'hash' => $hashnewfile, 'algo' => $algo);
 				}
 			}
 		}
@@ -398,7 +402,7 @@ if (empty($error) && !empty($xml)) {
 					$out .= dol_print_size((int) $file['expectedsize']);
 				}
 				$out .= '</td>'."\n";
-				$out .= '<td class="center">'.dol_escape_htmltag($file['expectedmd5']).'</td>'."\n";
+				$out .= '<td class="center">'.dol_escape_htmltag($file['expectedhash']).'</td>'."\n";
 				$out .= "</tr>\n";
 			}
 		} else {
@@ -432,8 +436,8 @@ if (empty($error) && !empty($xml)) {
 				$out .= '<tr class="oddeven">';
 				$out .= '<td>'.$i.'</td>'."\n";
 				$out .= '<td>'.dol_escape_htmltag($file['filename']).'</td>'."\n";
-				$out .= '<td class="center">'.dol_escape_htmltag($file['expectedmd5']).'</td>'."\n";
-				$out .= '<td class="center">'.dol_escape_htmltag($file['md5']).'</td>'."\n";
+				$out .= '<td class="center">'.dol_escape_htmltag($file['expectedhash']).'</td>'."\n";
+				$out .= '<td class="center">'.dol_escape_htmltag($file['hash']).'</td>'."\n";
 				$out .= '<td class="right">';
 				if ($file['expectedsize']) {
 					$out .= dol_print_size((int) $file['expectedsize']);
@@ -490,8 +494,8 @@ if (empty($error) && !empty($xml)) {
 						$out .= ' '.$form->textwithpicto('', $htmltext, 1, 'help', '', 0, 2, 'helprm'.$i);
 					}
 					$out .= '</td>'."\n";
-					$out .= '<td class="center">'.dol_escape_htmltag((string) $file['expectedmd5']).'</td>'."\n";  // @phan-suppress-current-line PhanTypeInvalidDimOffset
-					$out .= '<td class="center">'.dol_escape_htmltag($file['md5']).'</td>'."\n";
+					$out .= '<td class="center">'.dol_escape_htmltag((string) $file['expectedhash']).'</td>'."\n";  // @phan-suppress-current-line PhanTypeInvalidDimOffset
+					$out .= '<td class="center">'.dol_escape_htmltag($file['hash']).'</td>'."\n";
 					$size = dol_filesize(DOL_DOCUMENT_ROOT.'/'.$file['filename']);
 					$totalsize += $size;
 					$out .= '<td class="right">'.dol_print_size($size).'</td>'."\n";
@@ -525,14 +529,14 @@ if (empty($error) && !empty($xml)) {
 	if (is_object($xml->dolibarr_scripts_dir[0])) {
 		$file_list = array();
 		$ret = getFilesUpdated($file_list, $xml->dolibarr_htdocs_dir[0], '', ???, $checksumconcat);		// Fill array $file_list
-		'@phan-var-force array{insignature:string[],missing?:array<array{filename:string,expectedmd5:string,expectedsize:string}>,updated:array<array{filename:string,expectedmd5:string,expectedsize:string,md5:string}>} $file_list';
+		'@phan-var-force array{insignature:string[],missing?:array<array{filename:string,expectedhash:string,expectedsize:string,algo:string}>,updated:array<array{filename:string,expectedhash:string,expectedsize:string,hash:string,algo:string}>} $file_list';
 	}*/
 
 
 	// Section Globalchecksum
 	asort($checksumconcat); // Sort list of checksum
 
-	$checksumget = md5(implode(',', $checksumconcat));
+	$checksumget = hash($algo, implode(',', $checksumconcat));
 
 	if ($mode == 'unalterable') {
 		$nameofsection = 'dolibarr_unalterable_files_checksum';
@@ -585,7 +589,16 @@ if (empty($error) && !empty($xml)) {
 		$outforlistoffiles .= '<textarea id="listofunalterablefiles" class="hideobject quatrevingtpercent" rows="12">';
 		$i = 0;
 		foreach ($listoffilestoanalyze as $dirtoanalyze) {
-			foreach ($dirtoanalyze->md5file as $filetoanalyze) {
+			$entry = array();
+			if (!empty($dirtoanalyze->md5file)) {
+				$entry = $dirtoanalyze->md5file;
+				$algo = 'md5';
+			} elseif (!empty($dirtoanalyze->sha256file)) {
+				$entry = $dirtoanalyze->sha256file;
+				$algo = 'sha256';
+			}
+
+			foreach ($entry as $filetoanalyze) {
 				if ($i) {
 					$outforlistoffiles .= "\n";
 				}
diff --git a/htdocs/core/lib/files.lib.php b/htdocs/core/lib/files.lib.php
index 130c9542b7e..f05f0dbd0f0 100644
--- a/htdocs/core/lib/files.lib.php
+++ b/htdocs/core/lib/files.lib.php
@@ -3875,12 +3875,12 @@ function dirbasename($pathfile)
  * Function to get list of updated or modified files.
  * $file_list is used as global variable
  *
- * @param array{}|array{insignature:string[],missing?:array<array{filename:string,expectedmd5:string,expectedsize:string}>,updated:array<array{filename:string,expectedmd5:string,expectedsize:string,md5:string}>}	$file_list	Array for response
+ * @param array{}|array{insignature:string[],missing?:array<array{filename:string,expectedhash:string,expectedsize:string,algo:string}>,updated:array<array{filename:string,expectedhash:string,expectedsize:string,hash:string,algo:string}>}	$file_list	Array for response
  * @param   SimpleXMLElement	$dir    	        SimpleXMLElement of files to test
  * @param   string				$path   	        Path of files relative to $pathref. We start with ''. Used by recursive calls.
  * @param   string				$pathref            Path ref (DOL_DOCUMENT_ROOT)
  * @param   string[]			$checksumconcat     Array of checksum
- * @return	array{insignature:string[],missing?:array<array{filename:string,expectedmd5:string,expectedsize:string}>,updated:array<array{filename:string,expectedmd5:string,expectedsize:string,md5:string}>}	$file_list	Array of filenames
+ * @return	array{insignature:string[],missing?:array<array{filename:string,expectedhash:string,expectedsize:string,algo:string}>,updated:array<array{filename:string,expectedhash:string,expectedsize:string,hash:string,algo:string}>}	$file_list	Array of filenames
  */
 function getFilesUpdated(&$file_list, SimpleXMLElement $dir, $path = '', $pathref = '', &$checksumconcat = array())
 {
@@ -3888,24 +3888,33 @@ function getFilesUpdated(&$file_list, SimpleXMLElement $dir, $path = '', $pathre
 
 	//$exclude = 'install';
 
-	foreach ($dir->md5file as $file) {    // $file is a simpleXMLElement
+	$entry = array();
+	if (!empty($dir->md5file)) {
+		$entry = $dir->md5file;
+		$algo = 'md5';
+	} elseif (!empty($dir->sha256file)) {
+		$entry = $dir->sha256file;
+		$algo = 'sha256';
+	}
+
+	foreach ($entry as $file) {    // $file is a simpleXMLElement
 		$filename = $path.$file['name'];
 		$file_list['insignature'][] = $filename;
 		$expectedsize = (empty($file['size']) ? '' : $file['size']);
-		$expectedmd5 = (string) $file;
+		$expectedhash = (string) $file;
 
 		if (!file_exists($pathref.'/'.$filename)) {
-			$file_list['missing'][] = array('filename' => $filename, 'expectedmd5' => $expectedmd5, 'expectedsize' => $expectedsize);
+			$file_list['missing'][] = array('filename' => $filename, 'expectedhash' => $expectedhash, 'expectedsize' => $expectedsize, 'algo' => (string) $algo);
 		} else {
-			$md5_local = md5_file($pathref.'/'.$filename);
+			$hash_local = hash_file($algo, $pathref.'/'.$filename);
 
 			if ($conffile == '/etc/dolibarr/conf.php' && $filename == '/filefunc.inc.php') {	// For install with deb or rpm, we ignore test on filefunc.inc.php that was modified by package
-				$checksumconcat[] = $expectedmd5;
+				$checksumconcat[] = $expectedhash;
 			} else {
-				if ($md5_local != $expectedmd5) {
-					$file_list['updated'][] = array('filename' => $filename, 'expectedmd5' => $expectedmd5, 'expectedsize' => $expectedsize, 'md5' => (string) $md5_local);
+				if ($hash_local != $expectedhash) {
+					$file_list['updated'][] = array('filename' => $filename, 'expectedhash' => $expectedhash, 'expectedsize' => $expectedsize, 'hash' => (string) $hash_local, 'algo' => (string) $algo);
 				}
-				$checksumconcat[] = $md5_local;
+				$checksumconcat[] = $hash_local;
 			}
 		}
 	}
diff --git a/htdocs/langs/en_US/admin.lang b/htdocs/langs/en_US/admin.lang
index 9db09151994..3fdd9cf9031 100644
--- a/htdocs/langs/en_US/admin.lang
+++ b/htdocs/langs/en_US/admin.lang
@@ -16,7 +16,7 @@ FileCheck=Fileset integrity check
 FileCheckDesc=This tool checks the integrity of your files and application setup by comparing each file with the official version. It also verifies certain setup constants. Use this tool to detect if any files have been modified (e.g., by a hacker).
 FileIntegrityIsStrictlyConformedWithReference=File integrity strictly matches the reference.
 FileIntegrityIsOkButFilesWereAdded=File integrity check passed, but some new files were added.
-FileIntegrityIsKO=File integrity check failed, some files were modified or removed. See the detail lower...
+FileIntegrityIsKO=The check of file integrity has failed, some files were modified or removed. See the detail lower...
 FileIntegritySomeFilesWereRemovedOrModified=File integrity check failed: some files were modified, removed, or added.
 GlobalChecksum=Global checksum
 MakeIntegrityAnalysisFrom=Perform integrity analysis of application files from
@@ -26,7 +26,7 @@ FilesMissing=Missing files
 FilesUpdated=Updated files
 FilesModified=Modified files
 FilesAdded=Added files
-FileCheckDolibarr=Check application file integrity
+FileCheckDolibarr=Check integrity of the application files
 AvailableOnlyOnPackagedVersions=Local integrity file is only available for packaged installations. Use the remote signature if unavailable.
 XmlNotFound=Application XML integrity file not found
 SessionId=Session ID