# New extension: Bitmaps (Redis)

**URL:** <https://forum.codecrafters.io/t/new-extension-bitmaps-redis/16258>\
**Category:** Announcements\
**Tags:** challenge:redis\
**Created:** [September 3, 2026, 5:53am UTC](https://forum.codecrafters.io/t/new-extension-bitmaps-redis/16258 "2026-09-03T05:53:29Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![yeswanth](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/yeswanth/32/27558_2.png) [@yeswanth](https://forum.codecrafters.io/u/yeswanth)\
**Post date:** [September 3, 2026, 5:53am UTC](https://forum.codecrafters.io/t/new-extension-bitmaps-redis/16258/1 "2026-09-03T05:53:29Z")

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The next extension for the Redis challenge is now live: **Bitmaps**.

A Redis bitmap is a sequence of bits stored as a string, useful for tasks like tracking subscriptions or counting daily active users.

 ![Landing](https://canada1.discourse-cdn.com/flex003/uploads/codecrafters/original/3X/f/c/fc29ca17fdb7c6d5c18daf3c5ce22e6a08eb00ef.jpeg)

By the end of this extension, your Redis implementation will support:

- Creating bitmaps and setting bits with SETBIT
- Retrieving a bit with GETBIT
- Using GET and SET with bitmaps
- Counting set bits with BITCOUNT
- Combining bitmaps with BITOP AND and BITOP OR

Here’s the stage breakdown:

 ![image](https://canada1.discourse-cdn.com/flex003/uploads/codecrafters/original/3X/d/1/d14d41f2dd7b28bab15a96974004ee1e2f478ea7.png)

Please [give this a try](https://app.codecrafters.io/courses/redis/overview) and let us know how it can be improved!

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**Author:** ![Evilsunz](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/evilsunz/32/18602_2.png) [@Evilsunz](https://forum.codecrafters.io/u/Evilsunz)\
**Post date:** [September 3, 2026, 3:22pm UTC](https://forum.codecrafters.io/t/new-extension-bitmaps-redis/16258/3 "2026-09-03T15:22:41Z")

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One question - it’s beign said - that all work on new challenges/extensions will be stopped - or im wrong ? Something changed ?

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**Author:** ![AndrewNikolin](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/andrewnikolin/32/4146_2.png) [@AndrewNikolin](https://forum.codecrafters.io/u/AndrewNikolin)\
**Post date:** [September 10, 2026, 7:05pm UTC](https://forum.codecrafters.io/t/new-extension-bitmaps-redis/16258/4 "2026-09-10T19:05:56Z")

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Unrelated to extension, but since this was shared in the same newsletter wanted to say that i’m very happy to see you guys managed to keep going!

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**Author:** ![smith558](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/smith558/32/4327_2.png) [@smith558](https://forum.codecrafters.io/u/smith558)\
**Post date:** [September 29, 2026, 10:28am UTC](https://forum.codecrafters.io/t/new-extension-bitmaps-redis/16258/5 "2026-09-29T10:28:44Z")

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Also wondering. Able to shed any light on this? @yeswanth Happy about it, of course, though.

> [@Evilsunz](#):
>
> One question - it’s beign said - that all work on new challenges/extensions will be stopped - or im wrong ? Something changed ?

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**Author:** ![yeswanth](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/yeswanth/32/27558_2.png) [@yeswanth](https://forum.codecrafters.io/u/yeswanth)\
**Post date:** [September 30, 2026, 10:32am UTC](https://forum.codecrafters.io/t/new-extension-bitmaps-redis/16258/6 "2026-09-30T10:32:40Z")

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Hey @smith558

I’ve recently started as a CTO at CodeCrafters. My goal is to continue building new content, maintain the platform and also try out new product ideas.

That said, our team is quite small and we’re trying our best to keep up with everything 🙂

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**Author:** ![crstead](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/crstead/32/24770_2.png) [@crstead](https://forum.codecrafters.io/u/crstead)\
**Post date:** [October 1, 2026, 11:38pm UTC](https://forum.codecrafters.io/t/new-extension-bitmaps-redis/16258/7 "2026-10-01T23:38:14Z")

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This is genuinely awesome news. Congratulations!!
