immersive-portals-0.4(forMc1.16withFabric).jar is a release file of the Minecraft mod Immersive Portals, made for Minecraft 1.16-Snapshot. It was published on March 19, 2020 and is 0.7 MB in size. For the full description, screenshots and every other version, visit the Immersive Portals mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.