# IRC imaging software Change Log

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[20110304]
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A minor bug is found in the task 'coadd2.cl' that may be used
when the normal coadd is not successful. We updated the script.
If you are using the toolkit package version 20110225, replace
'irc/pkg/bluebox/coadd2.cl' with the new one, then type 'unlearn_all'
or 'unlearn coadd2' to initialize the input parameters. The package
of version 20110304 includes the corrected file.

Note that the procedure is not a part of 'pipeline' processing.
Unless you did not run the program specifically your results
were not affected.

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[20110225]
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(1) The main reduction script 'pipeline' has been divided into
    two scripts: 'pipeline1' & 'pipeline2'.

(2) The reduction order has been changed.

(3) New options for dark subtractions are available.

(4) The latest flat patterns for L15 & L24 have been included.
    (The conversion factors for the flux calibratio listed in the
    Data Users Manual are still valid.)

(5) Handling of masked pixels has been modified.

(6) New tasks for removing the effect of the earth-shine light and
    for coadding frames, which uses the IRAF task 'xregister', have
    been developed.

For more detail of these revisions, please see another document
'README_20110225_detail.txt' included in the tar package. The user
manual will be revised accordingly in a near future.

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[20070914]
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There are many major changes in the program. See IDUM for details.