diff --git a/ChangeLog b/ChangeLog
index a8241b7557a..73f9213db94 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -25,6 +25,7 @@ The following changes may create regressions for some external modules, but were
 * The experimental and deprecated module WebserviceClient is completely removed (SOAP technology is deprecated). May be replaced with the stable module Webhook.
 * The dynamic properties ->no_button_delete, ->no_button_edit, ->no_button_copy for $object Product that could be set by an external module must no more
   be set (not allowed by PHP 8.2). A module can already return an array with key 'no_button_delete', 'no_button_edit', 'no_button_copy' for same purpose.
+* The old function dol_bc($var, $moreclass = '') has been removed. If you called it, just stop to call it.
 
 
 ***** ChangeLog for 20.0.0 compared to 19.0 *****
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 632e264ad9d..349df99e188 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -3163,23 +3163,6 @@ function fieldLabel($langkey, $fieldkey, $fieldrequired = 0)
 	return $ret;
 }
 
-/**
- * Return string to add class property on html element with pair/impair.
- *
- * @param	boolean	$var			false or true
- * @param	string	$moreclass		More class to add
- * @return	string					String to add class onto HTML element
- */
-function dol_bc($var, $moreclass = '')
-{
-	global $bc;
-	$ret = ' '.$bc[$var];
-	if ($moreclass) {
-		$ret = preg_replace('/class=\"/', 'class="'.$moreclass.' ', $ret);
-	}
-	return $ret;
-}
-
 /**
  *      Return a formatted address (part address/zip/town/state) according to country rules.
  *      See https://en.wikipedia.org/wiki/Address
@@ -12669,7 +12652,7 @@ function dolGetButtonTitleSeparator($moreClass = "")
 /**
  * get field error icon
  *
- * @param  string  $fieldValidationErrorMsg message to add in tooltip
+ * @param  string  $fieldValidationErrorMsg 	Message to add in tooltip
  * @return string html output
  */
 function getFieldErrorIcon($fieldValidationErrorMsg)
@@ -14678,7 +14661,7 @@ function show_actions_messaging($conf, $langs, $db, $filterobj, $objcon = null,
 
 /**
  * Helper function that combines values of a dolibarr DatePicker (such as Form::selectDate) for year, month, day (and
- * optionally hour, minute, second) fields to return a a portion of URL reproducing the values from the current HTTP
+ * optionally hour, minute, second) fields to return a portion of URL reproducing the values from the current HTTP
  * request.
  *
  * @param 	string $prefix 		Prefix used to build the date selector (for instance using Form::selectDate)
@@ -14713,14 +14696,13 @@ function buildParamDate($prefix, $timestamp = null, $hourTime = '', $gm = 'auto'
  * whether to include the header and footer, and if only the message should be shown without additional details.
  * The function also supports executing additional hooks for customized handling of error pages.
  *
- * @param string $message Custom error message to display. If empty, a default "Record Not Found" message is shown.
- * @param int<0,1> $printheader Determines if the page header should be printed (1 = yes, 0 = no).
- * @param int<0,1> $printfooter Determines if the page footer should be printed (1 = yes, 0 = no).
- * @param int<0,1> $showonlymessage If set to 1, only the error message is displayed without any additional information or hooks.
- * @param mixed $params Optional parameters to pass to hooks for further processing or customization.
+ * @param string 	$message Custom error message to display. If empty, a default "Record Not Found" message is shown.
+ * @param int<0,1> 	$printheader Determines if the page header should be printed (1 = yes, 0 = no).
+ * @param int<0,1> 	$printfooter Determines if the page footer should be printed (1 = yes, 0 = no).
+ * @param int<0,1> 	$showonlymessage If set to 1, only the error message is displayed without any additional information or hooks.
+ * @param mixed 	$params Optional parameters to pass to hooks for further processing or customization.
  * @global Conf $conf Dolibarr configuration object (global)
  * @global DoliDB $db Database connection object (global)
- * @global User $user Current user object (global)
  * @global Translate $langs Language translation object, initialized within the function if not already.
  * @global HookManager $hookmanager Hook manager object, initialized within the function if not already for executing hooks.
  * @global string $action Current action, can be modified by hooks.