MySQL 6.0.7-alpha が公開されました。
これは、MySQL 6.0 シリーズのアルファー版リリースです。

MySQL 6.0 については以下のURLをご覧ください。
http://www.mysql.com/mysql60/

ダウンロードはこちらから：
http://dev.mysql.com/downloads/mysql/6.0.html

MySQL 6.0 シリーズで導入される新ストレージエンジン、falcon と maria についての情報はこちら：
http://www.mysql.com/why-mysql/white-papers/falcon-getting-started.php
http://www.mysql.com/why-mysql/white-papers/storage-engines-falcon.php
http://dev.mysql.com/doc/refman/6.0/en/se-maria.html


------------------------
以下チェンジログ：



■重要な機能の追加と変更(6.0.7)：

- Important Change: mysqlbinlog now supports --verbose and
--base64-output=DECODE-ROWS options to display row events as
commented SQL statements. (The default otherwise is to display
row events encoded as base-64 strings using BINLOG statements.)
See Section 4.6.7.2, "mysqlbinlog Row Event Display."
(Bug#31455: http://bugs.mysql.com/31455)

■重要な安全上の修正と非互換な修正(6.0.7)：
- Security Enhancement: The server consumed excess memory while
parsing statements with hundreds or thousands of nested
boolean conditions (such as OR (OR ... (OR ... ))). This could
lead to a server crash or incorrect statement execution, or
cause other client statements to fail due to lack of memory.
The latter result constitutes a denial of service.
(Bug#38296: http://bugs.mysql.com/38296)

- Incompatible Change: There were some problems using DllMain()
hook functions on Windows that automatically do global and
per-thread initialization for libmysqld.dll:
+ Per-thread initialization: MySQL internally counts the
number of active threads, which causes a delay in
my_end() if not all threads have exited. But there are
threads that can be started either by Windows internally
(often in TCP/IP scenarios) or by users. Those threads do
not necessarily use libmysql.dll functionality but still
contribute to the open-thread count. (One symptom is a
five-second delay in times for PHP scripts to finish.)
+ Process-initialization: my_init() calls WSAStartup that
itself loads DLLs and can lead to a deadlock in the
Windows loader.
To correct these problems, DLL initialization code now is not
invoked from libmysql.dll by default.
(Bug#37226: http://bugs.mysql.com/37226)

- Incompatible Change: Some performance problems of SHOW ENGINE
INNODB STATUS were reduced by removing used cells and Total
number of lock structs in row lock hash table from the output.
These values are now present only if UNIV_DEBUG is defined at
MySQL build time.
(Bug#36941: http://bugs.mysql.com/36941,
Bug#36942: http://bugs.mysql.com/36942)

- Important Change: The INFORMATION_SCHEMA.FALCON_TABLES table
has been removed.
(Bug#29211: http://bugs.mysql.com/29211,
Bug#34705: http://bugs.mysql.com/34705,
Bug#34706: http://bugs.mysql.com/34706)