preloaded new version

Project/libraries/Versions/Release-Candidate/1.21.4-rc1.md

@@ -0,0 +1,7 @@
+---
+version-image-link: null
+not_finished: true
+server-jar: https://piston-data.mojang.com/v1/objects/58f4bdb6af6053819d5483deba9e84194e6e2aae/server.jar
+translator: null
+cats: ['1.21','1.21.4']
+---