On 12 July 2021, while testing a stream with GrimWatch, prop posted screenshots of the Season 1 client mods. 1 2 3 The list was fabric-api, appleskin, optifabric, modmenu, Simple Voice Chat (1.17.1-1.0.0) and OptiFine 1.17.1. Prop reposted it on 25 September 2021, which helped IRIS get in. 4
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