Cant index using elasticsearch 8

Failed to index after upgrade to elastic 8.1.0, reverted to 7.17.1 work again.
Unrecognized parameter, something depreceated?

debian@b06dd1767b73:/var/www/html$ ./occ fulltextsearch:test 
 
.Testing your current setup:  
Creating mocked content provider. ok  
Testing mocked provider: get indexable documents. (2 items) ok  
Loading search platform. (Elasticsearch) ok  
Testing search platform. ok  
Locking process ok  
Removing test. ok  
Pausing 3 seconds 1 2 3 ok  
Initializing index mapping. fail  
Error detected, unlocking process ok 
In Connection.php line 693:
                                                                                                                                                                                                                                          
  {"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"request [/nextcloudfts] contains unrecognized parameter: [include_type_name]"}],"type":"illegal_argument_exception","reason":"request [/nextcloudfts] contains   
  unrecognized parameter: [include_type_name]"},"status":400}                                                                                                                                                                             
                                                                                                                                                                                                                                          

fulltextsearch:test [--output [OUTPUT]] [-j|--json] [-d|--platform_delay PLATFORM_DELAY]

confirmed, deprecated
https://www.elastic.co/guide/en/elasticsearch/reference/master/migrating-8.0.html

Start by running ./occ fulltextsearch:test against Elasticsearch 8.1.0 and follow the failure during index mapping initialization. Inspect the code responsible for that mapping request, focusing on the reported include_type_name parameter; done means the setup test succeeds with Elasticsearch 8 while preserving the supported behavior indicated by the issue.