But the Vatican did aborogate all existing indulgences, requiring any that were not included in the new norms to be specifically renewed. The fourth edition
of Enchiridion indulgentiarum: normae et concessiones is current and the other three and prior are abrogated. There are some grants given since 1999 that are also current.
1 June 28, 1968
2 October 1968
3 May 18, 1986
4 July 16, 1999
All those prayers giving so many days indulgence are no longer is used:Regarding partial indulgences, with the abolishment of the former determination of days and years, a new norm or measurement has been established which takes into consideration the action itself of the faithful Christian who performs a work to which an indulgence is attached.
Since by their acts the faithful can obtain, in addition to the merit which is the principal fruit of the act, a further remission of temporal punishment in proportion to the degree to which the charity of the one performing the act is greater, and in proportion to the degree to which the act itself is performed in a more perfect way, it has been considered fitting that this remission of temporal punishment which the Christian faithful acquire through an action should serve as the measurement for the remission of punishment which the ecclesiastical authority bountifully adds by way of partial indulgence.
From: * INDULGENTIARUM DOCTRINA* (Apostolic Constitution On Indulgences Pope Paul VI (January 1, 1967)
ewtn.com/library/PAPALDOC/P6INDULG.HTM