Steps to reproduce the issue

Install new Joomla! 5.2 rc2

Look in side XML manifest files for Joomla! extensions

Expected result

XML manifest files have only files and folders I see in Joomla! 5.2

Actual result

I find XML manifest files with old files and folders. Maybe old joomla 3 left over?

• com_admin, has backend forms folder
• com_banners, has frontend language files
• com_messages, has frontend language files
• com_users, has frontend layouts folder
• com_actionlogs, has backend layouts folder
• com_workflow, has backend access.xml
• lib_joomla, has compat joomla and legacy folders but not folders I see in side libraries
• mod_stats_admin, has 4 languages which are not in Joomla!
• plg_editors_tinymce, has media/editors not media/plg_editors_tinymce

System information (as much as possible)

Joomla! 5.2 rc2

I have checked 5.2-dev branch, same problem

Additional comments

Not high priority. I read https://manual.joomla.org/docs/web-services-api/ and I understand the right way. If annoying just close. Thx