In the beginning of pre incorporation, you may have made mistakes in your name, signature, occupation, address, emails or you got married or you want to change your name to another. Then you have to file change in particulars.
Note: If you an old company, and you are due for Annual return, you must pay your annual returns before you make these changes.
For a recently incorporated company or registered business name, you can start up these changes 48 hrs after incorporation.
For instance, if your ltd coy was registered in December 2020 or January 2020, you can still make these changes without filing annual returns because, you have not elapsed 18 months after incorporation. For business name, if you just recently got it registered like last two months you can still get those particulars changed.

my company was Incorporated in August 2020 can I change a director?

WarrenC:
my company was Incorporated in August 2020 can I change a director?

yes you can.
You are not yet due for annual return filing. So it can be changed.
Annual returns is filed 18months after incorporation. For new companies, that are not yet due they can still file for any changes.