Congratulations, can't wait to try it and I wish you the best luck
with EMC2.3 next year :-)

just a basic question: does the x86-64 version have any performance
benefits in interrupt rate or other processing? Or only marginal?

On 11/5/07, Jeff Epler <[EMAIL PROTECTED]> wrote:
> I'm pleased to announce the first release of the EMC 2.2 series, EMC
> 2.2.0.  After about a year of development, many new features are
> available in this release.  The documentation (particularly the HTML
> documentation) is greatly improved, and a partial translation of the
> documentation into the french language is available.
>
> Please join us on IRC in the usual place (irc.freenode.net / #emc)
> if you have any questions, or just to help us celebrate!
>
>
> I am the release manager for the emc 2.2.x release cycle.  As a result,
> you'll need to add my "gpg key" to the list of keys that will
> authenticate packages on your system.  Do so by issuing these commands
> in the terminal:
>     gpg --keyserver pgpkeys.mit.edu --recv-key 96935D7D
>     gpg -a --export 96935D7D | sudo apt-key add -
> after the second step you will be prompted for your password in order to
> run the administrative command "apt-key add".  If you don't perform this
> step, you will get a warning about "unauthenticated software" when
> installing bugfix releases.
>
>
> Because (minor) changes to configuration files are needed, your
> existing install will not automatically be updated to 2.2.  If you want
> to run 2.2, you will have to change to the EMC 2.2 repository by
> following these instructions:
>
>     Run System/Administration/Synaptic Package Manager
>     Go to Settings/Repositories
>
>     In the list of Channels are two lines for linuxcnc.org.
>
>     For each of them:
>       Select the line and click Edit
>       on the Components line, change emc2 or emc2.1 to emc2.2
>       Click OK
>
>     Close the "Software Preferences" window
>     Click "Reload" as instructed
>     Click "Mark All Upgrades"
>     Click "Apply"
>
>
> A new EMC 2.2 Live CD will be released in the next week or so.
>
>
> CVS users can get this release by checking out the RELEASE_2_2_0 tag.
>
>
> Once you have done the upgrade, you will need to update any custom
> configurations by following these instructions:
>     http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl/emcinfo.pl?UPDATING
>
>
> As noted previously, support for Ubuntu 5.10 "Breezy Badger" has been
> dropped from this release.  The currently supported version is Ubuntu
> 6.06 LTS "Dapper Drake".  If you are running a Breezy Badger system, you
> must reinstall with Dapper Drake, or follow these instructions to update
> online:
>     http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Breezy_Upgrading
>
>
> More detailed changelog:
>   * G41.1, G42.1, G43.1 to take tool parameters from gcode instead of tool
>     table
>   * split libposemath and libemcini from libnml
>   * new inifile item: [HAL]SHUTDOWN, a .hal file run at a clean shutdown of 
> emc
>   * new component: deadzone
>   * new component: tristate_float
>   * new component: random
>   * new components: clarke2 clark3 clarkeinv
>   * hexapod visualization
>   * scara robot sample configuration with visualization
>   * opengl machine visualization for several "robots"
>   * new m5i20 firmwares
>   * M66 - digital input control (wait & read external HAL inputs)
>   * userspace "comp"
>   * hal-8255 driver for a PCI multiple-8255 card
>   * tapered in/out on multipass threading canned cycle
>   * debug and print output from the interpreter
>   * named parameters in the interpreter
>   * puma robot kinematics
>   * sample configuration for a puma robot
>   * reduce quantization of the encoder module's velocity output
>   * MDI history manipulation and save in AXIS
>   * home to index on STG1
>   * number of samples in halscope can be specified at runtime
>   * add 'source' command to halcmd
>   * add tcl interface to halcmd commands (tcl/hal.so)
>   * add "-U" (force unload) to halrun script
>   * new component: lut5
>   * image-to-gcode: roughing passes
>   * rs274.author: automatic arc recognition (used by image-to-gcode)
>   * Filters can now show progress bars in the AXIS window as they run
>   * U,V,W linear axes with fully coordinated motion
>   * probing in A,B,C,U,V,W axes is now allowed
>   * AXIS: touch-off in any coordinate system
>   * AXIS: allow starting an editor on the loaded gcode or tool table from the
>     File menu
>   * AXIS: A much better Velocity display
>   * AXIS: Preferences set on the View menu are saved for the next EMC run
>   * Rigid tapping G33.1
>   * Feed Per Revolution and Constant Surface Speed for lathes
>   * Index-only homing for configurations where homing on a switch is
>     inconvenient
>   * G28/G30 now move only the specified axes to the home/reference point
>   * Improved error messages for incorrect arcs
>   * All combinations of inch/metric machines running inch/metric programs work
>     correctly when using the tool table.  The tool table is always in machine
>     units.
>   * Now any combination of XYZABCUVW axes can be defined, and trying to move
>     an undefined axis causes a proper error message
>   * Tool change position can have an ABC component.  Previously rotary axes
>     always moved to 0 for a tool change.
>   * Spindle speed override
>   * Optional stop
>   * Analog jogging in halui (for joysticks etc.)
>   * Fix several-second unresponsiveness when switching between two guis
>     (even if one of them was halui)
>   * AXIS: Show machine limits with red dashed lines
>   * Pluto step/direction driver (ALPHA QUALITY DRIVER)
>   * Halscope display now shows the trace name and parameters for each trace
>   * Halscope "roll" mode
>   * Halscope "AC coupling" of signals
>   * for SMP configurations, run EMC's realtime parts on the highest numbered
>     CPU, since this can be isolated from the rest of linux using isolcpus=
>   * x86_64 port
>   * powerpc port (sim only)
>   * fixed a bug that caused helixes with a small circular component to have
>     too low a feed rate
>
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