diff --git a/application/cmdbabstract.class.inc.php b/application/cmdbabstract.class.inc.php
index 3d6bbbb78..bf7065db1 100644
--- a/application/cmdbabstract.class.inc.php
+++ b/application/cmdbabstract.class.inc.php
@@ -508,32 +508,6 @@ HTML
 		return $aHeaderBlocks;
 	}
 
-	/**
-	 * Display history tab of an object
-	 *
-	 * @deprecated 3.0.0 will be removed in 3.1, see N°3824
-	 *
-	 * @param bool $bEditMode
-	 * @param int $iLimitCount
-	 * @param int $iLimitStart
-	 *
-	 * @param \WebPage $oPage
-	 *
-	 * @throws \CoreException
-	 *
-	 */
-	public function DisplayBareHistory(WebPage $oPage, $bEditMode = false, $iLimitCount = 0, $iLimitStart = 0)
-	{
-		DeprecatedCallsLog::NotifyDeprecatedPhpMethod();
-		// history block (with as a tab)
-		$oHistoryFilter = new DBObjectSearch('CMDBChangeOp');
-		$oHistoryFilter->AddCondition('objkey', $this->GetKey(), '=');
-		$oHistoryFilter->AddCondition('objclass', get_class($this), '=');
-		$oBlock = new HistoryBlock($oHistoryFilter, 'table', false);
-		$oBlock->SetLimit($iLimitCount, $iLimitStart);
-		$oBlock->Display($oPage, 'history');
-	}
-
 	/**
 	 * Display properties tab of an object
 	 *
@@ -1179,8 +1153,6 @@ HTML
 		$oPage->SetCurrentTab('UI:PropertiesTab');
 		$this->DisplayBareProperties($oPage, $bEditMode);
 		$this->DisplayBareRelations($oPage, $bEditMode);
-		// TODO 3.0.0: What to do with this?
-		//$this->DisplayBareHistory($oPage, $bEditMode);
 
 		// Note: Adding the JS snippet which enables the image upload should have been done directly by the ActivityPanel which would have kept the independance principle
 		// of the UIBlock. For now we keep it this way in order to move on and trace this known limitation in N°3736.
diff --git a/application/displayblock.class.inc.php b/application/displayblock.class.inc.php
index 1c3a92a9f..dc682d766 100644
--- a/application/displayblock.class.inc.php
+++ b/application/displayblock.class.inc.php
@@ -1698,145 +1698,6 @@ JS
 
 }
 
-/**
- * Helper class to manage 'blocks' of HTML pieces that are parts of a page and contain some list of cmdb objects
- *
- * Each block is actually rendered as a <div></div> tag that can be rendered synchronously
- * or as a piece of Javascript/JQuery/Ajax that will get its content from another page (ajax.render.php).
- * The list of cmdbObjects to be displayed into the block is defined by a filter
- * Right now the type of display is either: list, count or details
- * - list produces a table listing the objects
- * - count produces a paragraphs with a sentence saying 'cont' objects found
- * - details display (as  table) the details of each object found (best if only one)
- *
- * @deprecated 3.0.0 will be removed in 3.1, see N°3824
- */
-class HistoryBlock extends DisplayBlock
-{
-	protected $iLimitCount;
-	protected $iLimitStart;
-	
-	public function __construct(DBSearch $oFilter, $sStyle = 'list', $bAsynchronous = false, $aParams = array(), $oSet = null)
-	{
-		DeprecatedCallsLog::NotifyDeprecatedPhpMethod();
-		parent::__construct($oFilter, $sStyle, $bAsynchronous, $aParams, $oSet);
-		$this->iLimitStart = 0;
-		$this->iLimitCount = 0;
-	}
-
-	public function SetLimit($iCount, $iStart = 0)
-	{
-		$this->iLimitStart = $iStart;
-		$this->iLimitCount = $iCount;
-	}
-
-	public function GetRenderContent(WebPage $oPage, array $aExtraParams = [], string $sId = null)
-	{
-		$sHtml = '';
-		$bTruncated = false;
-		$oSet = new CMDBObjectSet($this->m_oFilter, array('date' => false));
-		if (!$oPage->IsPrintableVersion()) {
-			if (($this->iLimitStart > 0) || ($this->iLimitCount > 0)) {
-				$oSet->SetLimit($this->iLimitCount, $this->iLimitStart);
-				if (($this->iLimitCount - $this->iLimitStart) < $oSet->Count()) {
-					$bTruncated = true;
-				}
-			}
-		}
-		$sHtml .= "<!-- filter: ".($this->m_oFilter->ToOQL())."-->\n";
-		switch ($this->m_sStyle) {
-			case 'toggle':
-				// First the latest change that the user is allowed to see
-				do {
-					$oLatestChangeOp = $oSet->Fetch();
-				} while (is_object($oLatestChangeOp) && ($oLatestChangeOp->GetDescription() == ''));
-
-				if (is_object($oLatestChangeOp)) {
-					// There is one change in the list... only when the object has been created !
-					$sDate = $oLatestChangeOp->GetAsHTML('date');
-					$oChange = MetaModel::GetObject('CMDBChange', $oLatestChangeOp->Get('change'));
-					$sUserInfo = $oChange->GetAsHTML('userinfo');
-					$sHtml .= $oPage->GetStartCollapsibleSection(Dict::Format('UI:History:LastModified_On_By', $sDate, $sUserInfo));
-					$sHtml .= $this->GetHistoryTable($oPage, $oSet);
-					$sHtml .= $oPage->GetEndCollapsibleSection();
-				}
-				break;
-
-			case 'table':
-			default:
-			if ($bTruncated)
-			{
-				$sFilter = htmlentities($this->m_oFilter->serialize(), ENT_QUOTES, 'UTF-8');
-				$sHtml .= '<div id="history_container"><p>';
-				$sHtml .= Dict::Format('UI:TruncatedResults', $this->iLimitCount, $oSet->Count());
-				$sHtml .= ' ';
-				$sHtml .= '<a href="#" onclick="DisplayHistory(\'#history_container\', \''.$sFilter.'\', 0, 0); return false;">'.Dict::S('UI:DisplayAll').'</a>';
-				$sHtml .= $this->GetHistoryTable($oPage, $oSet);
-				$sHtml .= '</p></div>';
-				$oPage->add_ready_script("$('#{$sId} table.listResults tr:last td').addClass('truncated');");
-			}
-			else
-			{
-				$sHtml .= $this->GetHistoryTable($oPage, $oSet);
-			}
-			$oPage->add_ready_script(InlineImage::FixImagesWidth());
-		
-			$oPage->add_ready_script("$('.case-log-history-entry-toggle').on('click', function () { $(this).closest('.case-log-history-entry').toggleClass('expanded');});");
-			$oPage->add_ready_script(
-<<<EOF
-$('.history_entry').each(function() {
-	var jMe = $(this);
-	var oContent = $(this).find('.history_html_content');
-	if (jMe.height() < oContent.height())
-	{
-			jMe.prepend('<span class="history_truncated_toggler"></span>');
-			jMe.find('.history_truncated_toggler').on('click', function() {
-				jMe.toggleClass('history_entry_truncated');
-			});
-	}
-});
-EOF
-			);
-		}
-		return new Html($sHtml);
-	}
-	
-	protected function GetHistoryTable(WebPage $oPage, DBObjectSet $oSet)
-	{
-		$sHtml = '';
-		// First the latest change that the user is allowed to see
-		$oSet->Rewind(); // Reset the pointer to the beginning of the set
-		$aChanges = array();
-		while($oChangeOp = $oSet->Fetch())
-		{
-			$sChangeDescription = $oChangeOp->GetDescription();
-			if ($sChangeDescription != '')
-			{
-				// The change is visible for the current user
-				$changeId = $oChangeOp->Get('change');
-				$aChanges[$changeId]['date'] = $oChangeOp->Get('date');
-				$aChanges[$changeId]['userinfo'] = $oChangeOp->Get('userinfo');
-				if (!isset($aChanges[$changeId]['log']))
-				{
-					$aChanges[$changeId]['log'] = array();
-				}
-				$aChanges[$changeId]['log'][] = $sChangeDescription;
-			}
-		}
-		$aAttribs = array('date' => array('label' => Dict::S('UI:History:Date'), 'description' => Dict::S('UI:History:Date+')),
-						  'userinfo' => array('label' => Dict::S('UI:History:User'), 'description' => Dict::S('UI:History:User+')),
-						  'log' => array('label' => Dict::S('UI:History:Changes') , 'description' => Dict::S('UI:History:Changes+')),
-						 );
-		$aValues = array();
-		foreach($aChanges as $aChange)
-		{
-			$aValues[] = array('date' => AttributeDateTime::GetFormat()->Format($aChange['date']), 'userinfo' => htmlentities($aChange['userinfo'], ENT_QUOTES, 'UTF-8'), 'log' => "<ul><li>".implode('</li><li>', $aChange['log'])."</li></ul>");
-		}
-		$sHtml .= $oPage->GetTable($aAttribs, $aValues);
-		return $sHtml;
-	}
-}
-
 /**
  * Displays the 'Actions' menu for a given (list of) object(s)
  * The 'style' of the list (see constructor of DisplayBlock) can be either 'list' or 'details'
diff --git a/application/template.class.inc.php b/application/template.class.inc.php
index 41b30bfda..6c9a8566b 100644
--- a/application/template.class.inc.php
+++ b/application/template.class.inc.php
@@ -234,7 +234,6 @@ class DisplayTemplate
 		$sTemplate = '<div class="page_header">
 		<div class="actions_details"><a href="#"><span>Actions</span></a></div>
 		<h1>$class$: <span class="hilite">$name$</span></h1>
-		<itopblock blockclass="HistoryBlock" type="toggle" encoding="text/oql">SELECT CMDBChangeOp WHERE objkey = $id$ AND objclass = \'$class$\'</itopblock>
 		</div>
 		<img src="../../images/connect_to_network.png" style="margin-top:-10px; margin-right:10px; float:right">
 		<itoptabs>
diff --git a/application/templates/audit_category.html b/application/templates/audit_category.html
index 379c506c2..55f1ed6cc 100644
--- a/application/templates/audit_category.html
+++ b/application/templates/audit_category.html
@@ -1,7 +1,6 @@
 <div class="page_header">
 	<itopblock blockclass="MenuBlock" type="popup" encoding="text/oql" label="Actions">SELECT $class$ WHERE id = $id$</itopblock>
 	<h1>$class$: <span class="hilite">$name$</span></h1>
-	<itopblock blockclass="HistoryBlock" type="toggle" encoding="text/oql">SELECT CMDBChangeOp WHERE objkey = $id$ AND objclass = '$class$'</itopblock>
 </div>
 <img src="../../images/clean.png" style="margin-top:-20px; margin-right:10px; float:right">
 <itopblock blockclass="DisplayBlock" asynchronous="false" type="bare_details" encoding="text/oql">SELECT $class$ WHERE id = $id$</itopblock>
diff --git a/js/utils.js b/js/utils.js
index 1424d01c4..78907be06 100644
--- a/js/utils.js
+++ b/js/utils.js
@@ -583,18 +583,6 @@ function ExportInitButton(sSelector) {
 	});
 }
 
-/**
- * @deprecated 3.0.0 will be removed in 3.1, see N°3824
- */
-function DisplayHistory(sSelector, sFilter, iCount, iStart) {
-	$(sSelector).block();
-	var oParams = {operation: 'history_from_filter', filter: sFilter, start: iStart, count: iCount};
-	$.post(GetAbsoluteUrlAppRoot()+'pages/ajax.render.php', oParams, function (data) {
-			$(sSelector).html(data).unblock();
-		}
-	);
-}
-
 /**
  * @deprecated 3.0.0 N°4367 deprecated, use {@see CombodoSanitizer.EscapeHtml} instead
  *
diff --git a/pages/ajax.render.php b/pages/ajax.render.php
index 92a294296..784cf477c 100644
--- a/pages/ajax.render.php
+++ b/pages/ajax.render.php
@@ -1281,31 +1281,6 @@ JS
 			AjaxRenderController::DisplayAboutBox($oPage);
 			break;
 
-		/** @deprecated 3.0.0 Will be removed in 3.1, see N°3824 */
-		case 'history':
-			$oPage->SetContentType('text/html');
-			$id = (int)utils::ReadParam('id', 0);
-			$iStart = (int)utils::ReadParam('start', 0);
-			$iCount = (int)utils::ReadParam('count', MetaModel::GetConfig()->Get('max_history_length'));
-			$oObj = MetaModel::GetObject($sClass, $id);
-			$oObj->DisplayBareHistory($oPage, false, $iCount, $iStart);
-			//$oPage->add_ready_script("$('#history table.listResults').tableHover(); $('#history table.listResults').tablesorter( {
-			// widgets: ['myZebra', 'truncatedList']} );");
-			break;
-
-		/** @deprecated 3.0.0 Will be removed in 3.1, see N°3824 */
-		case 'history_from_filter':
-			$oPage->SetContentType('text/html');
-			$oHistoryFilter = DBSearch::unserialize($sFilter);
-			$iStart = (int)utils::ReadParam('start', 0);
-			$iCount = (int)utils::ReadParam('count', MetaModel::GetConfig()->Get('max_history_length'));
-			$oBlock = new HistoryBlock($oHistoryFilter, 'table', false);
-			$oBlock->SetLimit($iCount, $iStart);
-			$oBlock->Display($oPage, 'history');
-			//$oPage->add_ready_script("$('#history table.listResults').tableHover(); $('#history table.listResults').tablesorter( {
-			// widgets: ['myZebra', 'truncatedList']} );");
-			break;
-
 		case 'full_text_search':
 			$aFullTextNeedles = utils::ReadParam('needles', array(), false, 'raw_data');
 			$sFullText = trim(implode(' ', $aFullTextNeedles));