============================================
Nagg version 1.1.1 released on May 8, 2012.
============================================

1. Introduction
===============

This document describes the NPP Aggregation tool, nagg, and contains
information on platforms tested, changes since last release and any known
problems.

If you have any questions or comments, please send them to:
    help@hdfgroup.org


2. Platforms Tested
===================
Linux 2.6 32bit and 64bits with gcc 4.1.2 and icc 12.0.4


3. New features and bug fixes since Version 1.1.0
=================================================
    Configuration
    -------------
    - Added detection if getopt_long is available. getopt_long is used to
      implement the --xxx style of command options. (AKC 2012/5/7).
    
    Features
    --------
    - Added support for long options of --help, --directory, --help, --number,
      --simple, and --type. (AKC 2012/5/7)
      
    Bug Fixes
    ---------
    - JPSS-41 2012/04/27  Attempts to resize fixed dimension datasets for
      larger aggregations fail.  nagg will now handle datasets with either 
      fixed or unlimited dimensions.  The datasets in the output file will 
      have the same dimension type as those in the first input file (for 
      each aggregation). 
    - JPSS-42 2012/05/04  With some input files an uninitialized granule stucture
      member was used for a conditional expression, resulting in a segmentation 
      fault.  The member is now initialized before use in the expression.

    Limits
    ------
    - See nagg.docx (html, pdf) in the same directory for proposed functionality.
    Current release has the following limitations: 
       * Environment variables or command line options for compliance 
         with file naming convention presume valid types and packaging as
	 defined in the "nagg.h" file.
       * Grouping by time rather than number of granules (-A flag) is not
         supported (e.g., 7 minute 59 second granules starting at a given time
	 rather than just at the earliest granule encountered.)
       * Warnings or failures if granule gaps exceed some threshold are not
         supported.
       * Compression on output is not supported.
       * Options to choose repair granule are not supported; for now, the one
         with the latest version is used.
       * Option to replace existing granule with repair granule is not
         supported.  
       * Restrictions on flags and input parameters:
            Directory input is not supported.
           -l - not supported
           -A - not supported
           -d - not suported

      
4. Known problems
=================
    Output file names generated do not have the product IDs appeared in sorted
    order. (AKC 2012/04/09).
    -d option is accepted but is not supported, that is, has no effect.
    (AKC 2012/3/29).