Getting a warning message in newest MARC module

I haven't commented on this list for a long time, but hit a problem 
today.   I upgraded to the most recent? version of (MARC-Record-2.0.5)   
and using programs that haven't changed in a long time, but run everyday 
on an older version, I'm getting the following message.

Use of uninitialized value in hash element at . . ./Record.pm line 202.
The code at that spot is as following.

for my $tag ( @specs ) {
         my $regex = $field_regex{ $tag };

Before I start digging around, can someone tell me what might have 
changed in this version that would tell me why the message?


> -- 
> Gene Damon
> Director of Library Automation &
> Learning Resources
> Virginia Community College System
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