# Set category notification state historically

**URL:** https://meta.discourse.org/t/set-category-notification-state-historically/29979
**Category:** Feature
**Created:** [2015年六月14日 02:02 UTC](https://meta.discourse.org/t/set-category-notification-state-historically/29979 "2015-06-14T02:02:43Z")
**Posts on this page:** 1
**Showing post:** 10

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### Author: ![sam](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sam/32/102149_2.png) [@sam](https://meta.discourse.org/u/sam)
#### Post date: [2016年六月28日 08:39 UTC](https://meta.discourse.org/t/set-category-notification-state-historically/29979/10 "2016-06-28T08:39:55Z")

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This is now part done per:

> [@Canceling a Category "Watch"](https://meta.discourse.org/t/canceling-a-category-watch/12124/6):
>
> This is now implemented per: When you unwatch a category you also get a chance to unwatch all the old topics in that category when saving user prefs.

You can historically “unwatch” a category when changing.

However, historically “watching” / “tracking” opens a big can of worms. What if there are 700 thousand topics in a category, setting the read state can be crippling. It would have to have some limits.

I will add untrack tomorrow which should be fairly simple.

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_[View the full topic](https://meta.discourse.org/t/set-category-notification-state-historically/29979)._