As printed in Lexis.com dated February 2001:

"Class Actions. Ch. 13, Class Actions, has
been completely rewritten in this release by
Molly Hatchell, a Tyler appellate practitioner.
The revised chapter has been expanded, and
includes coverage of recent case law
concerning the requirements for bringing a
class action, including that the class be
capable of precise definition. In addition,
practical coverage of the types of actions that
can be brought and pleading requirements are
included. The procedural guides and forms
have been completely updated."