Dear MySQL users,
MySQL Community Server 5.0.90, a new version of the popular Open Source
Database Management System, has been released. This Community release
version number with its MySQL Enterprise Server counterpart.
Please note that the active maintenance of 5.0 has ended,and this
version is mostly
provided because of the fix to security bug#50227 as described below.
The release is now available in source and binary form for a number of
platforms from our download pages at
and mirror sites. Note that not all mirror sites may be up to date at
this point in time, so if you can't find this version on some mirror,
please try again later or choose another download site.
We welcome and appreciate your feedback, bug reports, bug fixes,
This section documents all changes and bugfixes that have been
applied since the last MySQL Community Server release (5.0.89).
If you would like to receive more fine-grained and personalized
update alerts about fixes that are relevant to the version and
features you use, please consider subscribing to MySQL Enterprise
(a commercial MySQL offering). For more details please see
Changes in MySQL 5.0.90
* The version information in RPM package files has been changed:
+ The "level" field of a MySQL version number is now also
included in the RPM version and in the package file name.
+ The RPM "release" value now starts to count from 0.
For example, the Rhel, Sles rpm file of 5.0.90 is named as
* *Security Fix*: For servers built with yaSSL, a preauthorization
buffer overflow could cause memory corruption or a server
crash. We thank Evgeny Legerov from Intevydis for providing us
with a proof-of-concept script that allowed us to reproduce
this bug. (Bug#50227: http://bugs.mysql.com/bug.php?id=50227,
* *Replication*: FLUSH LOGS did not actually close and reopen the
binary log index file.
See also Bug#34582: http://bugs.mysql.com/bug.php?id=34582.
* Some prepared statements could raise an assertion when
* Valgrind warnings for CHECKSUM TABLE were corrected.
* Specifying an index algorithm (such as BTREE) for SPATIAL or
FULLTEXT indexes caused a server crash. These index types do
not support algorithm specification, and it is now disallowed
to do so. (Bug#49250: http://bugs.mysql.com/bug.php?id=49250)
* The optimizer sometimes incorrectly handled conditions of the
form WHERE col_name='const1' AND col_name='const2'.
* Several strmake() calls had an incorrect length argument (too
large by one).
* On Fedora 12, strmov() did not guarantee correct operation for
overlapping source and destination buffer. Calls were fixed to
use an overlap-safe version instead.
* Incomplete reset of internal TABLE structures could cause a
crash with eq_ref table access in subqueries.
* Re-execution of a prepared statement could cause a server
crash. (Bug#48508: http://bugs.mysql.com/bug.php?id=48508)
* The error message for ER_UPDATE_INFO was subject to buffer
overflow or truncation.
* On Solaris, no stack trace was printed to the error log after
a crash. (Bug#47391: http://bugs.mysql.com/bug.php?id=47391)
* Comparison with NULL values sometimes did not produce a
* When compressed MyISAM files were opened, they were always
memory mapped, sometimes causing memory-swapping problems. To
deal with this, a new system variable, myisam_mmap_size, was
added to limit the amount of memory used for memory mapping of
On behalf of the MySQL Build Team,
Database Technology Group
|• MySQL Community Server 5.0.90 has been released||sunanda menon||29 Jan|