1. Introduction
---------------
All results and input files are available at 

  http://www.slac.stanford.edu/xorg/hfag/semi/winter04/winter04.shtml

In the  following (in  no particular order),  the updates for winter 2004
with respect to Summer conferences 2003/PDG 2004 are discussed.

As usual, some of the error breakdowns can be found in

  http://www.slac.stanford.edu/xorg/hfag/semi/winter04/winter04.xls
spreadsheet. This is relevant only for the branching fraction B -> X l
nu and |Vub|. 

Not  much  has  changed,  except  for the  new  average  of  inclusive
determinations of |Vub| and that a first attempt has been started to
provide the results in a crude writeup:

  http://www.slac.stanford.edu/xorg/hfag/semi/winter04/writeup.ps


2. Changes to common parameters
-------------------------------

We use the updated input parameters for mixing and lifetimes. For more
information, please see

  http://lepbosc.web.cern.ch/LEPBOSC/combined_results/mar_20b
  
and

  http://lepbosc.web.cern.ch/LEPBOSC/combined_results/mar_20b/changes.txt


3. Average of |Vub| from inclusive measurements on Upsilon(4S)
--------------------------------------------------------------

This is documented in the write-up, available at

  http://www.slac.stanford.edu/xorg/hfag/semi/winter04/writeup.ps


4. Average of |Vub| from exclusive measurements on Upsilon(4S)
--------------------------------------------------------------

Christoph   Schwanda   has   put   together  tables   with   exclusive
determinations of  |Vub|. There  is no average  quoted yet, but  it is
envisioned in the future to provide an average, probably starting from
these results.


5. Conclusion
-------------

Your critical comments will be much appreciated. Please send them to