Is the process for renewing a retirement visa the same each year in Thailand?

The renewal process for Thailand's retirement visa, while generally stable, can involve stricter scrutiny from immigration officers each year. Various comments highlight that document verification may be more rigorous than in the past, with requirements to prove ongoing compliance with the visa's purpose. Certain individuals have reported being asked for up-to-date documentation, such as proof of sufficient funds (500k THB), and having their entry denied based on improper documentation. There's a growing concern among expats that immigration rules are tightening, which underlines the importance of keeping all visa-related documents up to date to avoid complications.