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What's new in X 10.21.0-alpha.4

Get ready for the new dark mode, now with 2 options – dim and lights out – and an automatic setting!

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About X 10.21.0-alpha.4

The X app is the trusted global digital town square for everyone.

With X, you can:

- Post content for the world to see and join public conversations
- Stay up to date on breaking news and follow your interests
- Stay better informed with extra context from Community Notes
- Go live with Spaces for audio or stream live video
- Communicate privately with Direct Messages
- Subscribe to X Premium to expand your reach, get a blue checkmark, and more
- Earn a living creating exclusive content for your paid subscribers and share in the ad revenue generated in replies to your posts
- Create and join Communities around topics and interests, from sports to music to technology
- Upload and watch videos up to 3 hours in length
- Write and read long form posts like essays and blogs
- Connect directly with your customers to help your business grow

X 10.21.0-alpha.4 Play Store screenshots (8)

Screenshots from version 12.39.0-prod.01

X 10.21.0-alpha.4X 10.21.0-alpha.4X 10.21.0-alpha.4X 10.21.0-alpha.4X 10.21.0-alpha.4X 10.21.0-alpha.4X 10.21.0-alpha.4X 10.21.0-alpha.4

X 10.21.0-alpha.4 Play Store trailer

Download X 10.21.0-alpha.4

This release may come in several variants. Consult our handy FAQ to see which download is right for you.

Variant
Arch
Version
DPI
10.21.0-alpha.4 BUNDLE 3 S
310210204
December 14, 2023
arm64-v8a
Android 6.0+
480dpi
All Releases
X 12.39.0-prod.01
October 31, 2026

Version:12.39.0-prod.01

Uploaded:October 31, 2026 at 6:18PM UTC

File size:145.53 MB

Downloads:11,446

X 12.40.0-alpha.01
October 31, 2026

Version:12.40.0-alpha.01

Uploaded:October 31, 2026 at 6:18PM UTC

File size:145.15 MB

Downloads:1,663

X 12.39.0-beta.02
October 29, 2026

Version:12.39.0-beta.02

Uploaded:October 29, 2026 at 12:09PM UTC

File size:145.26 MB

Downloads:2,441

X 12.39.0-beta.01
October 29, 2026

Version:12.39.0-beta.01

Uploaded:October 29, 2026 at 5:26AM UTC

File size:145.28 MB

Downloads:1,070

X 12.38.1-prod.01
October 29, 2026

Version:12.38.1-prod.01

Uploaded:October 29, 2026 at 5:26AM UTC

File size:134.54 MB

Downloads:5,222

X 12.38.0-beta.01
October 26, 2026

Version:12.38.0-beta.01

Uploaded:October 26, 2026 at 8:59AM UTC

File size:134.28 MB

Downloads:2,695

X 12.37.2-prod.01
October 24, 2026

Version:12.37.2-prod.01

Uploaded:October 24, 2026 at 3:39AM UTC

File size:127.71 MB

Downloads:10,050

X 12.37.1-prod.01
October 23, 2026

Version:12.37.1-prod.01

Uploaded:October 23, 2026 at 11:02PM UTC

File size:55.93 MB

Downloads:634

X 12.37.0-prod.01
October 23, 2026

Version:12.37.0-prod.01

Uploaded:October 23, 2026 at 4:31PM UTC

File size:127.72 MB

Downloads:843

X 12.36.0-beta.01
October 21, 2026

Version:12.36.0-beta.01

Uploaded:October 21, 2026 at 7:03AM UTC

File size:124.07 MB

Downloads:1,749

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