If you’ve forgotten how to upgrade your Apache installation in the least painfull way with a possibility to go back if something goes wrong: Upgrading Apache

• mbox: Message header reading was unnecessarily slow. Fetching a huge header could have resulted in Dovecot eating a lot of CPU. Also searching messages was much slower than necessary.
• mbox, dbox, cydir: Mail root directory was created with 0770 permissions, instead of 0700.
• maildir: Reading uidlist could have ended up in an infinite loop.
• IMAP IDLE: v1.2.7+ caused extra load by checking changes every 0.5 seconds after a change had occurred in mailbox

It took me a while to find out what was wrong here but I solved it. It is my mistake as I did not discover this earlier. The mysqld program when compiling from source is located in ‘/usr/local/mysql/libexec‘ and is properly referenced is you use the ‘mysqld_safe‘ program to start it up. The mysqld binary in ‘/usr/local/mysql/bin‘ is a left-over of the binary install procedure and is no longer used or referenced. This also means that my startup script was incorrect.

As a consequence I’ve changed the startup plist file. Please do the same by first changing the plist file and then do:

sudo launchctl unload /System/Library/LaunchDaemons/com.diymacserver.mysql.plist
sudo launchctl load /System/Library/LaunchDaemons/com.diymacserver.mysql.plist

Then the newer version should be running. You can check this by using the command:

mysqladmin version

Thanks to the vigilant users and my apologies to the others.

Check all the fixes and changes that are listed on the release notes to see what issues are resolved and if you are affected.

I’ve compiled this version and did some simple tests on my test servers and it worked without any problems.

Read the documentation on how to ugrade MySQL.

• Improved before-queue content filter performance. With
  “smtpd_proxy_options = speed_adjust”, the Postfix SMTP server
  receives the entire message before it connects to a before-queue
  content filter. Typically, this allows Postfix to handle the same
  mail load with fewer content filter processes.
• Improved address verification performance. The verify database
  is now persistent by default, and it is automatically cleaned
  periodically, Under overload conditions, the Postfix SMTP server
  no longer waits up to 6 seconds for an address probe to complete.
• Support for reputation management based on the local SMTP client
  IP address. This is typically implemented with “FILTER transportname:”
  actions in access maps or header/body checks, and mail delivery
  transports in master.cf with unique smtp_bind_address values.
• The postscreen daemon (a zombie-blocker in front of Postfix) is
  still too rough for a stable release, and will be made “mature”
  in the Postfix 2.8 development cycle (however you can use Postfix
  2.7 with the Postfix 2.8 postscreen and dnsblog executables and
  master.cf configuration; this code has already proven itself).

No functionality has been removed, but it is a good idea to review
the RELEASE_NOTES file for the usual minor incompatibilities or
limitations.

By the way you still need to edit the ‘src/util/sys_defs.h‘ file.

For instructions on how to upgrade Postfix please read Upgrading Postfix.

Check all the fixes and changes that are listed on the release notes to see what issues are resolved and if you are affected. Most of them are concerning replication.

I’ve compiled this version and did some simple tests on my test servers and it worked without any problems.

Read the documentation on how to ugrade MySQL.

• %variables now support %{host}, %{pid} and %{env:ENVIRONMENT_NAME} everywhere.
• LIST-STATUS capability is now advertised
• maildir: Fixed several assert-crashes.
• imap: LIST “” inbox shouldn’t crash when using namespace with “INBOX.” prefix.
• lazy_expunge now ignores non-private namespaces.

On Leopard there is a small known issue with postfix. To correct it comment out or delete the following line from ‘/etc/postfix/main.cf‘:

inet_interfaces = localhost

Restart postfix (reloading config does not work) with:

sudo postfix stop
sudo postfix start

And all should be fine. If you find another issue please use the comments.

Read more about the specifics for this release here: Changes in MySQL 5.0.89

• Fixed a safe_mode bypass in tempnam() identified by Grzegorz Stachowiak. (CVE-2009-3557, Rasmus)
• Fixed a open_basedir bypass in posix_mkfifo() identified by Grzegorz Stachowiak. (CVE-2009-3558, Rasmus)
• Added “max_file_uploads” INI directive, which can be set to limit the number of file uploads per-request to 20 by default, to prevent possible DOS via temporary file exhaustion, identified by Bogdan Calin. (CVE-2009-4017, Ilia)
• Added protection for $_SESSION from interrupt corruption and improved “session.save_path” check, identified by Stefan Esser. (CVE-2009-4143, Stas)
• Fixed bug #49785 (insufficient input string validation of htmlspecialchars()). (CVE-2009-4142, Moriyoshi, hello at iwamot dot com)

For instructions on how to upgrade PHP please read: Upgrading PHP.