Is this way to decompress ZSTD (v1.5.2) in Luau here to stay?

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#1

Roblox has relatively recently introduced the ability to decompress ZSTD compressed data using JSONDecode. I’m curious if this feature will be a permanent addition because I’d like to incorporate it into various projects, most notably a RBXM deserializer in Luau.

Example code:

game.HttpService:JSONDecode('{"m": null, "t": "buffer", "zbase64": ""}') --> ZSTD_getFrameContentSize returned error Unspecified error code
2 Likes
#2

Roblox typically deprecates features rather than removing them to avoid breaking older games. You should be fine.

#3

Usually this is the case with things that are announced/instance related, however, this was discovered via reverse engineering and no official announcement was made about it.

#4

Unless Roblox changes how JSONDecode works or how RBXM files are saved, you should be fine.