Fleasion v2.4.0 Update — Env Proxy, Proxy Tab & GLB Export

Fleasion v2.4.0 was released on August 15, 2026. It changes how Roblox is launched and routed by default, adds a full live Proxy workspace, makes shared configs portable, and expands the cache exporter with single-file rigged .glb output. We also hardened FastFlag startup, Sober adoption, cache invalidation, TLS diagnostics and platform-specific launch paths.

The short version: Env Proxy is now the default. Fleasion relaunches Roblox Player or Sober with proxy environment variables aimed at a loopback listener, instead of rewriting the system hosts file and claiming privileged port 443. Roblox Studio remains untouched. The old Hosts File path is still available as a compatibility mode.

What changed in Fleasion v2.4.0

Our source comparison from v2.3.0 to v2.4.0 touches 117 files, with 24,729 additions and 1,788 deletions. Those counts include tests and generated UI code; they are useful as scale, not as a claim that every changed line is a user-facing feature.

Env Proxy is now the default Roblox launch path

In Env Proxy mode, Fleasion starts its local proxy on a high loopback port — normally 127.0.0.1:58443 — and launches Roblox Player with the matching proxy environment. If that port is unavailable on Windows, it chooses another free loopback port. This keeps the routing scoped to the Player Fleasion starts rather than changing resolution for the whole computer.

Three boundaries matter:

• No hosts-file edit or privileged port 443 is required in the default mode. Those belong to the optional legacy Hosts File mode.
• Roblox Studio is not proxied. Fleasion targets Roblox Player on Windows and macOS, and Sober on Linux.
• The Roblox CA bundle is still patched locally. Roblox must trust the certificate generated for the loopback TLS proxy; this is not a system-wide root-certificate install.

The Dashboard can run as your normal user in Env Proxy mode. Elevation may still appear for an explicit repair or the legacy routing mode, but it is no longer the everyday launch requirement.

The new Proxy tab exposes live requests and responses

The seventh Dashboard tab is a technical workspace for inspecting the traffic Fleasion is already handling. You can filter and highlight flows, inspect request and response bodies, pause traffic, edit a held message, forward or drop selected requests, replay a flow, and import or export automatic replacement rules.

Privacy warning: the Proxy tab can expose Roblox login traffic. Never open or stream this tab for another person, and never publish captured headers, cookies, tokens or bodies.

Holding traffic can also delay or break the Player session until a request is forwarded or dropped. Use the tab as a debugging tool, then turn hold off when you are done.

FastFlags apply more reliably, but custom flags can be bannable

Fleasion now primes custom FastFlags more consistently when Roblox starts on Windows and macOS, including launches that pass through Froststrap or AppleBlox. Linux gains global hotkeys; Windows and Linux bindings can use keyboard keys, mouse buttons and the mouse wheel. The binding controller stays active after the Dashboard closes.

That reliability does not make every flag safe. Roblox can ban accounts for custom FastFlags, and Fleasion now requires an explicit risk confirmation before enabling them. Use built-in options conservatively, review imported JSON before applying it, and do not treat a shared flag pack as trusted merely because it loads successfully.

Portable configs keep local assets beside the JSON

A local replacement can now use a portable path such as /Sounds/hit.ogg or /Models/rifle.obj. Fleasion resolves it relative to the config's asset folder, so you can move the config and its files together without preserving the creator's Windows or macOS absolute path.

Nested folders are supported up to 10 levels. Imported or edited config files are watched and refreshed while Fleasion is running, which removes the old close-and-reopen step for most external edits. Keep paths relative, keep the folder structure intact, and inspect any shared config before using it.

Rigged meshes export as GLB and animations keep sparse tracks

The cache exporter can detect an embedded rig and write a single .glb containing mesh geometry, skeleton and skin weights. Mesh v6 and v7 parsing now covers raw and Draco-compressed data more reliably, including high-quality LOD selection. Static .obj replacement workflows still work; GLB is the new export path for rigged data, not a replacement for every OBJ use case.

Animation conversion also preserves sparse body tracks and timing more accurately. Large cache views now perform asset-type probes only for visible rows, reducing the up-front work required to browse a busy session.

Platform and reliability fixes in v2.4.0

• Windows: Store/Xbox GDK launch handling, free-port fallback, targeted firewall and ACL repair, safer Proactor/TLS shutdown and more focused diagnostics.
• macOS: more reliable launch retries, reinstall guidance and logs; Froststrap and AppleBlox launch paths are recognized.
• Linux: stronger Sober discovery and adoption, IPv4 preference with IPv6 fallback, global hotkeys, Arch Linux dependency guidance and XFCE fixes.
• All platforms: per-user Run on Boot, improved config watching, pinned bootstrap traffic tunnelling, cache flush/cancellation and cleaner shutdown.

Run on Boot uses the current user's startup mechanism: Startup registration on Windows, a LaunchAgent on macOS, or XDG autostart on Linux. It does not require a machine-wide service.

Download Fleasion v2.4.0 and verify the file

Use our download page or the official v2.4.0 GitHub release. The release contains three platform binaries:

On macOS, extract the archive, move the app to Applications, then use Open from Finder's context menu if Gatekeeper blocks the first launch. On Linux, make the downloaded file executable with chmod +x Fleasion-v2.4.0-Linux before starting it.

Frequently asked questions

Do I need to run Fleasion v2.4.0 as administrator?
Not for normal Env Proxy use. The Dashboard and loopback proxy run as your user. Elevation is reserved for explicit repair work or the optional legacy Hosts File mode.

Does Env Proxy stop modifying the hosts file?
Yes, in the default mode. It launches Roblox Player or Sober with proxy environment variables instead. Selecting Hosts File mode opts back into the legacy system-wide routing path.

Does Fleasion still patch a certificate?
Yes. It patches Roblox's own ssl/cacert.pem bundle so the client trusts Fleasion's local TLS proxy. Env Proxy removes the default hosts/port-443 requirement, not this Roblox-local trust step.

Is it safe to show someone the Proxy tab?
No. Live traffic can contain login data, cookies or tokens. Never stream it, share captures blindly or hand control of held requests to someone else.

Are custom FastFlags safe from bans?
No guarantee is possible. Roblox can act on custom FastFlags, which is why v2.4.0 displays a risk confirmation. Review every flag and follow Roblox and game rules.

Will old configs still work?
Yes. Absolute local paths still work on the computer that owns them. Portable /Folder/file.ext references are the better choice when a config and its assets need to move together.

Updated August 15, 2026 — verified against the official release notes and the v2.3.0…v2.4.0 source diff.

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Next: Download Fleasion · Install v2.4.0 · How to use the Dashboard · Full changelog · Safety and ban risk