Here are links to the latest updates from Ofqual (the exams regulator) and the awarding bodies.
Ofqual: Update (17 August)
Ofqual: A-level / GCSE infographic
Ofqual: Grading of vocational and technical qualifications
Pearson: BTEC Infographic
AQA: Summer results: update on awarding grades
OCR: Summer results 2020/Students
Pearson: Results for students and parents 2020