[Bug 251236] cad/cura bug in 4.7 causes slowdowns in circular perimeters; fixed in 4.8

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251236

            Bug ID: 251236
           Summary: cad/cura bug in 4.7 causes slowdowns in circular
                    perimeters; fixed in 4.8
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: Individual Port(s)
          Assignee: db at FreeBSD.org
          Reporter: sko at rostwald.de
          Assignee: db at FreeBSD.org
             Flags: maintainer-feedback?(db at FreeBSD.org)

In Cura version 4.7 a bug regarding slowdowns in circular perimeters was
introduced (or at list gets triggered much more easily than in earlier
versions):
https://github.com/Ultimaker/Cura/issues/8321

This issue makes v4.7.x hardly usable.
Sticking to v4.5 has become quite "tricky" to say the least, due to the massive
python-induced dependency hell and lots of dependencies being too new and/or
incompatible for the 4.5 version.

Version 4.8 has been released on November 10 that fixes this glitch in the
simplification algorithm. The issue is still open, but is considered to be
solved with 4.8 and changed default settings for Maximum resolution and Maximum
Deviation.

>From the Changelog of 4.8:
Fixed under-simplification (blobs, zits) on some printer models. An oversight
in 4.6.x resulted in an oversimplification (smoothing) of models. The attempted
fix in 4.7.x overcompensated, which gave difficulty (zits, blobs) for some
printer models when the resulting gcode became too intricate. This is now
fixed, though some profiles might need to be updated, since they where made
against 4.6.x, and therefore may rely on the over-simplification.


Would it be possible to fast-forward to 4.8?

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