We must not reset the charset in slave after each statement, otherwise the SET CHARACTER SET is cancelled immediately.
Instead, we write a SET CHARACTER SET DEFAULT to the master's binlog when needed (like we already do for SET FOREIGN_KEY_CHECKS);
such writing is not necessary in 4.1 (in 4.1 the bug does not exist, as the SET ONE_SHOT syntax is used).
I have written a test and it works, but I'm not pushing the test as it requires building with all charsets.
I have noticed differences between what is inserted in the master's table in 4.0 and 4.1, and alerted Bar.

or --with-extra-charsets=complex is given.

  Bug #4558 Escape handling error for ENUM values in SJIS encoding

  Wrong UPPER/LOWER translation for Cyrillic letter tse was fixed.
  bug#5110

into build.mysql.com:/users/rburnett/mysql-4.0

This file was part of the patch for 
Bug #4466  	Nothing in .err when mysql service ends because of malformed my.ini options 

message.mc:
  new file

   when pulling BK trees before.

into hegel.txg.br:/home/miguel/bk/mysql-4.0

into build.mysql.com:/users/rburnett/mysql-4.0

into mysql.com:/space/my/mysql-4.0

   of MySQL (BUG#3860)

into mysql.com:/home/my/mysql-4.0

into mysql.com:/M40/mysql-4.0

Update to new valgrind

lowercase_table.result:
  New results for modified lowercase_table test
lowercase_table.test:
  Added test case for all uppercase database when running under lower_case_table_names.  This really only failed under Windows.  Bug# 4792

sql_base.cc:
  Added code to lowercase database name in insert_fields when lower_case_table_names=1. This fixes bug# 4792

This was a customer request for to get the XP Logo Certification.

Note for LenZ:
Adding to the project libmysqld.dsp the file libmysqld.rc at compilation time will be created
the libmysqld.res and this linked. For every release edit the libmysqld.rc
version number.

into build.mysql.com:/users/rburnett/mysql-4.0

  Fix bug: if there was little file I/O in InnoDB, but the insert buffer was used, it could happen that 'Pending normal aio reads' was bigger than 0, but the I/O handler thread did not get waken up in 600 seconds. This resulted in a hang, and crashing of InnoDB.

into gluh.mysql.r18.ru:/home/gluh/MySQL-BUGS/mysql-4.0

   modifying configure.in for the commercial tarballs
 - added my-innodb-heavy-4G.cnf to the distribution

into mysql.com:/home/mysql_src/mysql-4.0

into gluh.mysql.r18.ru:/home/gluh/MySQL-BUGS/mysql-4.0

wrong results

(ok'd by CTO to fix it in 4.0).
Fix to make mysql-test-run work with all Valgrind versions.

into mysql.com:/home/pem/work/mysql-4.0

(cannot call it a "merge" :)

Abandoned improper use of MyISAM data.
Thanks Ingo!

  Added test case for bug #4256.
join_outer.result:
  Fixed bug #4256.
item_cmpfunc.h:
  Fixed inconsistency of values of used_tables_cache and
  const_item_cache for Item_func_isnull objects.
  This inconsistency caused bug #4256.

into mysql.com:/home/mysql_src/mysql-4.0

in a deadlock-free manner. This splits locking the global read lock in two steps.
This fixes a consequence of this bug, known as:
BUG#4953 'mysqldump --master-data may report incorrect binlog position if using InnoDB'
And a test.

into serg.mylan:/usr/home/serg/Abk/mysql-4.0