Obtaining a Plenary Indulgence on November 2, All Souls:
* make a good confession within a week before or after All Souls
* be free from all attachment to sin, even venial sin, for a plenary indulgence
* visit a church to pray for the faithful departed
* say one “Our Father” and the “Creed” during a visit to the church
* say one “Our Father” and one “Hail Mary” for the Pope’s monthly intentions
* receive Holy Communion, on the same day or soon after
To obtain a Plenary Indulgence from November 1 to 8:
* make a good Confession within a week of before or after All Souls Day
* be free from all attachment to sin, even venial sin, for a plenary indulgence
* visit a cemetery and pray for the dead
* say one “Our Father” and one “Hail Mary” for the monthly intentions set by the Pope
* receive Holy Communion worthily on the same day or soon after
Several indulgences may be gained on the basis of a single confession but only one may be gained after a single good reception Communion and prayer for the Pope’s intentions.
As noted below, this indulgence has been officially extended to all of November, 2021.
the reproach of Christ 
Thank you. I personally think obtaining a plenary indulgence is all but impossible for most of us fallible and error prone mortals due to the “be free from all attachment to sin, even venial sin” requirement. The word “all” doesn’t allow for anything short of perfection, but I still make a valiant effort. It’s one of many reasons I’m so heartened by the Divine Mercy devotion, and Jesus’ promise re: Divine Mercy Sunday, with no such qualifier:
“The soul that will go to Confession and receive Holy Communion will obtain complete forgiveness of sins and punishment”. (699)
I second that emotion. I wonder how we can even know we harbor attachment to venial sin? I like to think I hate my sinfulness tout suite, but I know how capable I am of deceiving myself, so. But it always comes back around to throwing ourselves on God’s mercy, one way or another, and that is indeed an unrivaled comfort.
I think that the provision of detachment from even venial sin is not so strict, for then none of us fallen sinners would qualify. Why have plenary indulgences only for the Saints?
The plenary indulgence is extended for the entire month of November 2021:
https://www.vatican.va/roman_curia/tribunals/apost_penit/documents/rc_trib_appen_pro_20211027_decreto-indulgenze_en.html
Thank you. That is correct.