0.14    Release
0.14.1  Allow netmasks given as dotted quads
0.15    Colorize Classbits, Mark new bits in network
0.16    25.9.2000 Accept <addr>/<cidr> as first argument
        Print <pre> tag in the script
0.17    Bugfix
0.18    Replace \n with <br> in HTML to make konqueror work. Argh.
0.19    HTML modified again to make Internet Exploder work. Argh ** 2
        Added -v Option
0.2     New Tabular Format. Idea by Kevin Ivory
0.21    
0.22    Don't show -1 if netmask is 32 (Sven Anderson)
0.23    Removed broken prototyping. Thanks to Scott Davis sdavis(a)austin-texas.net
0.31    4/1/2001 Print cisco wildcard (inverse netmask). 
        Idea by Denis Alan Hainsworth denis(a)ans.net
0.32    5/21/2001 - Accepts now inverse netmask as argument (Alan's idea again)
        Fixed missing trailing zeros in sub/supernets
        Warns now when given netmasks are illegal
        Added option to suppress the binary output
        Added help text
0.33	  5/21/2001 Cosmetic
0.34    6/19/2001 Use default netmask of class when no netmask is given
0.35    12/2/2001 Fixed big-endian bug in subnets(). This was reported 
        by Igor Zozulya and Steve Kent. Thank you for your help 
        and access to your sparc machine!


0.36-pre1
+ getopts
+ split_network
+ deaggregate
+ rename dqtobin bintodq
+ netblocks
+ accept hex netmasks (contribution)
+ remove garbage
+ rework argument handling
+ work all the time on integers, not machine type representations (pack)
+ eliminated unnessessary globals
+ replaced is_valid...
+ rewrote  format_bin 
+ various changes
+ applied fix for colorchange in format_bin scott baker

0.36-pre3
removed print_netmask
sticked formatbin and printline together to printline
(this marks new bits in supernets (former version didn't)
use label to decide what sfx to print
0.36-pre4
made subnets supernets           
     split / deaggregate work with new parameters
removed old functions
how to handle /31 and /32?

0.36-pre5
removed debug output in deaggregate

0.36-pre6
started netblocks
rework getclass

0.36 
/31

2004
0.37-pre5
+handle /31 /32
+new html
+wrap_html
+GPL Header 

0.37 2004-05-14
released 0.37 -> debian asked for a bug fix
in 0.35

0.38 2004-10-08 ipcalc did not work on 64bit architectures. 
                Thanks to Foxfair Hu <foxfair(a)FreeBSD.org> for finding this bug