Can you clarify Friday abstinence?

can you please tell me when the rule and if the rule about eating fish on Friday has changed?
and where can I find it? if it is in writing. Thanks for all your help.

The following link should assist you in better understanding the Catholic Church’s teaching on the Lenten tradition of abstinence from meat. If you have any further questions or concerns that are not answered by these links, please contact Catholic Answers directly.

Recommended Reading:
Where can I find a history of Friday abstinence from meat?**

DISCLAIMER: The views and opinions expressed in these forums do not necessarily reflect those of Catholic Answers. For official apologetics resources please visit