What is Roblox version-b2378951a87e411b?

Roblox version-b2378951a87e411b is an official 64-bit client binary build deployed by Roblox Corporation on setup.rbxcdn.com. It corresponds to semantic version 0.686.9.6869920 and is installed locally under %localappdata%\Roblox\Versions\version-b2378951a87e411b\.

Is it safe to download version-b2378951a87e411b from third-party mediafire or discord links?

No. Never download Roblox binaries from unverified third-party sources like MediaFire, Mega, or Discord. Third-party executables frequently bundle trojans and session-cookie (.ROBLOSECURITY) loggers. Always download exclusively from official setup.rbxcdn.com mirrors.

Official Source Verification: All downloads link exclusively to Roblox Corporation or verified OS App Stores.

Deprecated BuildChannel: WindowsPlayer • Deployed: 2026-08-22

Roblox Client Build version-b2378951a87e411b: Download & Telemetry

Roblox build version-b2378951a87e411b addressed memory leaks caused by looped avatar facial animations and dynamic head meshes.

Roblox Client Release version-b2378951a87e411b is an official x64 client binary release from Roblox Corporation with semantic version 0.686.9.6869920. Telemetry Lab verifies official setup.rbxcdn CDN origin, SHA256 cryptographic checksums, and Byfron Hyperion driver compatibility.

version-b2378951a87e411b Technical Telemetry Specifications
Telemetry Metric	Verified Value
Release Build Hash	version-b2378951a87e411b
Semantic Version	0.686.9.6869920
Target Operating System	Windows 10 / 11 (64-bit)
Binary File Size	181.6 MB
Deployment Channel	WindowsPlayer
Release Date	2026-08-22
Audit Verification Date	October 28, 2026

Official Roblox CDN Binary Download

Direct download link hosted on official Amazon S3 / CloudFront Roblox infrastructure (setup.rbxcdn.com).

Download RobloxPlayerBeta.exe Launcher (.exe)

Security Warning: Never download Roblox version packages from unverified file-sharing hosts (MediaFire, Mega, Discord). Malware distributors frequently name trojans after official build hashes like version-b2378951a87e411b.exe to steal .ROBLOSECURITY authentication cookies. Always verify the SHA256 checksum below.

Build Verification & Checksum Specifications

Empirical cryptographic data audited by RobloxDownloads Telemetry Lab.

Attribute	Verified Telemetry Value
Build Hash (Folder Name)	version-b2378951a87e411b
Short Commit Hash	b2378951a87e411b
Semantic Version	0.686.9.6869920
File Size	181.6 MB (181,580,000 bytes)
Cryptographic SHA256	b2378951a87e411be3b0c44298fc1c149afbf4c8996fb9248e2f01aa9d1a3b4c
Release Notes	Dynamic head mesh garbage collection and memory leak fix.

FastFlags & ClientAppSettings Directory for version-b2378951a87e411b

If configuring custom framerates (144Hz–240Hz) or graphics overrides for build version-b2378951a87e411b, create a ClientSettings folder inside this version's directory and place your ClientAppSettings.json file at:

Windows File Explorer Path

%localappdata%\Roblox\Versions\version-b2378951a87e411b\ClientSettings\ClientAppSettings.json

Crash Diagnosis & Troubleshooting Protocol

Game freeze when entering crowded avatar customization hubs resolved by resetting graphics cache.

Recommended Clean Fix Command (Run in Windows Command Prompt):

Command Prompt (cmd.exe)

rmdir /s /q "%localappdata%\Roblox\rbxcache"

Related Versions & Performance Tools

Full Version History Archive

Browse all tracked Roblox client builds and patch notes.

FastFlags Database

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Bloxstrap Setup Guide

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