0.3.0

SwiftClient 0.3.0 — now with the full client on every Minecraft from 1.21 to 26.3.

Download: SwiftClient-Setup.exe below. If Windows SmartScreen warns, choose More info → Run anyway (the installer is not code-signed yet).

The big one: all of 1.21.x

Until now the SwiftClient mod only built for 26.2 and 26.3, so anyone who picked a 1.21.x release got the performance mods but no capes, no HUD and no SwiftClient menu. SwiftClient now ships a mod for 1.21, 1.21.1 … 1.21.11, 26.2 and 26.3 — fourteen versions in all.

Same design everywhere

The 1.21.x screens were a reduced variant. They now match 26.3 exactly: the vanilla panorama behind the SwiftSMP navy wash, the crowned-mascot logo, the scaled wordmark, the hero Join SwiftSMP button with the server address and PLAY pill, the Mods / Language / SwiftClient pills, the Mojang credits link, and the fade-in. The Right Shift menu gained its type-to-search box, header, open and tab animations, scrolling and scrollbar.

Find mods without leaving the launcher

The Mods tab now searches Modrinth and installs in one click, filtered to Fabric builds for the Minecraft version you have selected. Every file is checked against Modrinth's published sha512 before it lands in your instance, and mods you install this way are yours — the built-in set never touches them.

You will hear about updates

An available update now raises a Windows notification as well as the banner in the window, so it reaches you even with SwiftClient sitting in the background. Signed-in state is also more robust: a damaged or outdated saved account no longer looks like a lost sign-in.

Capes

Cape selection now reports why Mojang refused to confirm a session, which is the difference between a bad sign-in and a server problem — and it is how we will finish chasing the reports of capes not working.

Windows 10/11 · x64 · Minecraft 1.21–26.3

Verify your download

SwiftClient-Setup.exe

• Size: 114,228,459 bytes
• SHA-256: 23eee3d1e3d2b7e13afeec6076ab423206a549f1c11970dbc9f04b7065e695eb

Nothing from Mojang or the mod authors is bundled — Minecraft, its Java runtime and libraries come from Mojang, Fabric from meta.fabricmc.net and the mods from Modrinth, downloaded on your PC at first launch and checked against their published hashes.