Why was there nothing after os 3.9?

[matthey]

If anything he can create another bootable partition and put the hack fest bb 3 and 4 on that and keep his stable system intact.

The "unofficial" Boing Bag 3 is mostly a collection of bug fixes for AmigaOS 3.9 that had occurred over the years with an easy to use installer. It's stable and I highly recommended it to every AmigaOS 3.9 owner. The "unofficial" Boing Bag 4 is a work in progress with some new fixes and enhancements but also some new bugs. Modules are removed if they are found to be problems. It's more for users that are willing to live with a little less stability but want more enhancements. These users are basically beta testers and it's helpful if they report bugs and wishes to Gulliver and Minuous.

[matthey]

I didn't know the math libraries had changed.

What is different about the Maths libraries in 3.9? Are they any faster?

The big change is 6888x instructions using the fpsp.resource instead of trapping for the 68040 and 68060. This is faster and more multitasking friendly (although not as fast as CPU specific math libraries). There are also various bug fixes for cos, exp, log, acos, asin, pow, etc. The problems serious enough that the developer (it looks like ThoR's *work*) wrote about pow:

"I don't know who wrote this, but I recommend taking a basic course in mathematics and numerics before writing math libraries."

[matthey]

@Minuous
You have been doing a good job with the BoingBags and most users appreciate the effort.

The unofficial BoingBag components are mostly improvements but configuring them on every Amiga variation is error prone, not to mention the old hardware is becoming less reliable.