Hi DeStilleGast! Myself and many other YouTubers I work with have been utilizing this mod forever! I personally love freezecam. Is there any way you can update this? I would gladly donate to the cause if that's what you need. Now that our stories are becoming more elaborate in our series, we could really use the update. I'll PM this message to you as well so we can talk more.
1.8 is a massive update for modders, as the rendering system has been completely re-written, and also every update has code that usually breaks the current version of the mod. Don't expect this to update anytime soon :3