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### 1.1 Debian specific changes

This document describes the Debian version of TOPCAT, which differs in a few properties from the original. Some rarely used or non-free support modules were removed:

- HTM (non-free library),
- PLASTIC (outdated and superceded by SAMP),
- Data structures and formats: HDS, HDX, NDX, GBIN, and Mirage,
- Remote data access via Astrogrid (MySpace) and SRB,
- Image display via SOG, Diva, JSky.

Please file a bug report if you think that some of this support shall be brought back.

Also, the Debian version of topcat uses external libraries which are different from the libraries shipped with the original TOPCAT distribution, with the fits Java library (`nom.tam.fits`; Debian package `libfits-java`) as the most important one. This may trigger bugs that do not appear in the original version. Please report problems with the Debian version of TOPCAT to the Debian bug database with the `reportbug` tool.

Automated update check is disabled by default for user privacy. Use the Debian update mechanism to keep TOPCAT up to date.

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TOPCAT - Tool for OPerations on Catalogues And Tables
Starlink User Note253
TOPCAT web page: http://www.starlink.ac.uk/topcat/
Author email: m.b.taylor@bristol.ac.uk
Mailing list: topcat-user@jiscmail.ac.uk