diff --git a/htdocs/projet/class/api_tasks.class.php b/htdocs/projet/class/api_tasks.class.php
index 3f333763e48..914148ffeeb 100644
--- a/htdocs/projet/class/api_tasks.class.php
+++ b/htdocs/projet/class/api_tasks.class.php
@@ -29,6 +29,7 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/timespent.class.php';
 /**
  * API class for projects
  *
+ * @since	5.0.0	Initial implementation
  * @access protected
  * @class  DolibarrApiAccess {@requires user,external}
  */
@@ -63,6 +64,8 @@ class Tasks extends DolibarrApi
 	 *
 	 * Return an array with task information
 	 *
+	 * @since	5.0.0	Initial implementation
+	 *
 	 * @param   int         $id                     ID of task
 	 * @param   int         $includetimespent       0=Return only task. 1=Include a summary of time spent, 2=Include details of time spent lines
 	 * @return	array|mixed                         data without useless information
@@ -101,6 +104,8 @@ class Tasks extends DolibarrApi
 	 *
 	 * Get a list of tasks
 	 *
+	 * @since	5.0.0	Initial implementation
+	 *
 	 * @param string		   $sortfield			Sort field
 	 * @param string		   $sortorder			Sort order
 	 * @param int			   $limit				Limit for list
@@ -190,6 +195,8 @@ class Tasks extends DolibarrApi
 	/**
 	 * Create task object
 	 *
+	 * @since	5.0.0	Initial implementation
+	 *
 	 * @param   array   $request_data   Request data
 	 * @phan-param ?array<string,string> $request_data
 	 * @phpstan-param ?array<string,string> $request_data
@@ -273,6 +280,8 @@ class Tasks extends DolibarrApi
 	/**
 	 * Get time spent of a task
 	 *
+	 * @since	23.0.0	Initial implementation
+	 *
 	 * @param 	int   				$id         Id of task
 	 * @return	array<int,mixed>				Array of timespent lines
 	 *
@@ -306,6 +315,8 @@ class Tasks extends DolibarrApi
 	/**
 	 * Get roles a user is assigned to a task with
 	 *
+	 * @since	5.0.0	Initial implementation
+	 *
 	 * @param   int   $id           Id of task
 	 * @param   int   $userid       Id of user (0 = connected user)
 	 * @return	array				Array of roles
@@ -483,6 +494,8 @@ class Tasks extends DolibarrApi
 	/**
 	 * Update task general fields (won't touch time spent of task)
 	 *
+	 * @since	5.0.0	Initial implementation
+	 *
 	 * @param 	int   	$id             	Id of task to update
 	 * @param 	array 	$request_data   	Data
 	 * @phan-param ?array<string,string> $request_data
@@ -532,6 +545,8 @@ class Tasks extends DolibarrApi
 	/**
 	 * Delete task
 	 *
+	 * @since	5.0.0	Initial implementation
+	 *
 	 * @param   int     $id         Task ID
 	 *
 	 * @return  array
@@ -568,6 +583,8 @@ class Tasks extends DolibarrApi
 	/**
 	 * Get time spent of a task
 	 *
+	 * @since	23.0.0	Initial implementation
+	 *
 	 * @param int   $id                     Id of task
 	 * @param int   $timespent_id           Id of timespent
 	 *
@@ -609,6 +626,8 @@ class Tasks extends DolibarrApi
 	 * You can test this API with the following input message
 	 * { "date": "2016-12-31 23:15:00", "duration": 1800, "user_id": 1, "note": "My time test" }
 	 *
+	 * @since	5.0.0	Initial implementation
+	 *
 	 * @param   int         	$id                 Task ID
 	 * @param   datetime|string	$date               Date (YYYY-MM-DD HH:MI:SS in GMT)
 	 * @param   int         	$duration           Duration in seconds (3600 = 1h)
@@ -677,6 +696,8 @@ class Tasks extends DolibarrApi
 	 * You can test this API with the following input message
 	 * { "date": "2016-12-31 23:15:00", "duration": 1800, "user_id": 1, "note": "My time test" }
 	 *
+	 * @since	17.0.0	Initial implementation
+	 *
 	 * @param   int         $id                 Task ID
 	 * @param   int         $timespent_id       Time spent ID (llx_element_time.rowid)
 	 * @param   datetime    $date               Date (YYYY-MM-DD HH:MI:SS in GMT)
@@ -731,6 +752,8 @@ class Tasks extends DolibarrApi
 	/**
 	 * Delete time spent for a task of a project.
 	 *
+	 * @since	17.0.0	Initial implementation
+	 *
 	 * @param   int         $id                 Task ID
 	 * @param   int         $timespent_id       Time spent ID (llx_element_time.rowid)
 	 *
@@ -992,6 +1015,8 @@ class Tasks extends DolibarrApi
 	 *
 	 * Return an array with contact information
 	 *
+	 * @since	23.0.0	Initial implementation
+	 *
 	 * @param int    $id     ID of task
 	 * @param string $type   Type of the contact
 	 * @return array<int,mixed>		Array with cleaned properties
@@ -1026,6 +1051,8 @@ class Tasks extends DolibarrApi
 	/**
 	 * Adds a contact to a task
 	 *
+	 * @since	23.0.0	Initial implementation
+	 *
 	 * @param int    $id             Task ID
 	 * @param int    $fk_socpeople   Id of thirdparty contact (if source = 'external') or id of user (if source = 'internal') to link
 	 * @param string $type_contact   Type of contact (code). Must a code found into table llx_c_type_contact. For example: BILLING
@@ -1073,6 +1100,8 @@ class Tasks extends DolibarrApi
 	/**
 	 * Delete a contact type of given task
 	 *
+	 * @since	23.0.0	Initial implementation
+	 *
 	 * @param int    $id         Id of task to update
 	 * @param int    $contactid  Row key of the contact in the array contact_ids.
 	 * @param string $type       Type of the contact (BILLING, SHIPPING, CUSTOMER).