The constantly-used IMM 5476 has just been updated. The new form – released in the last few days – bears the date code 2021-04. However, as of at least mid-June, the “current” form was still 2021-02.
Current form link: https://www.canada.ca/content/dam/ircc/migration/ircc/english/pdf/kits/forms/imm5476e.pdf
Version saved by the Internet Archive on June 23, 2021: https://web.archive.org/web/20210623052910/https://www.canada.ca/content/dam/ircc/migration/ircc/english/pdf/kits/forms/imm5476e.pdf