If you have lived in the UK for a continuous period of five years up to 31st December 2020 – you were eligible to apply for settled status (known as indefinite leave to remain).
If you have primarily lived in the UK for a period of less than five years – you were eligible to apply for pre-settled status (known as limited leave to remain).
Once you have resided in the UK for a period of five years, you should apply to have your pre-settled status changed to settled status.