As discussed on the opensim-dev mailing list, this is to avoid a demonstrated ODE collider segfault when stress-testing a simulator running more than one region using the bundled pCampbot.exe
As before, the ODE revision used is r1755 - only the collider has changed.
Tests so far reveal little performance change.
However, if noticeable issues do arise, please report on mantis and/or the opensim-dev mailing list.
The previous libraries are temporarily in bin/Physics-previous-ode-libs
These can be copied back to bin if one wants to compare behaviour with the previous libraries.
Justin Clark-Casey (justincc)