Notes
A few more issues have been discovered since the r487 release, and so we're releasing another patch release to correct these. There are fixes for three regressions plus a workaround for a graphics driver issue. One of the regressions is that due to an oversight, the addition of the model origin in r477 defaulted the Z origin to 'middle', whereas it should default to 'back' to work the same as it did before. This is now fixed so existing projects should continue to work as they did prior to r477, but if you already saved your project since then, it's straightforward to update it yourself - just make sure any 3D models that aren't appearing in the right place have the Z origin set to 'back' and it should work the same as it did before.
In case you missed it, see the original r487 release notes here.