# Crash on startup **URL:** \ **Category:** RapidWeaver Classic\ **Created:** [February 13, 2021, 11:34am UTC](https://forums.realmacsoftware.com/t/crash-on-startup/37483 "2021-02-13T11:34:49Z")\ **Posts on this page:** 1\ **Showing post:** 8
**Author:** ![theDecos](https://avatars.discourse-cdn.com/v4/letter/t/ee59a6/32.png) [@theDecos](https://forums.realmacsoftware.com/u/theDecos)\ **Post date:** [February 16, 2021, 5:43pm UTC](https://forums.realmacsoftware.com/t/crash-on-startup/37483/8 "2021-02-16T17:43:31Z")
Looking looking on the forum I found this post which states that RW 8.1.7 is compatible with OSX 10.11 even if it is better used with 10.12, so I erased RW 8.7 and downloaded RW 8.1.7 which opens perfectly my files and doesn’t crash … so far! > [@Is RapidWeaver 8.1.7 now compatible with OSX 10.11.6?](http://forums.realmacsoftware.com/t/is-rapidweaver-8-1-7-now-compatible-with-osx-10-11-6/26084/3): > > We certainly didn’t intend to cause any confusion by this. That App Store section shows what RW8 was tested on and is compatible with. We always recommend running the latest version of MacOS (usually), especially since RapidWeaver 8 was developed on more recent versions of MacOS. That said, we have a handful of users who run dozens of sites with RW8 on 10.11 and have no issues. Think of it as “it works with 10.11”, but “10.12 is recommended”. That’s all. slight_smile It would be nice to know which version of RW is the last supported on OSX 10.11! --- _[View the full topic](https://forums.realmacsoftware.com/t/crash-on-startup/37483)._