Subject IBO 5.9.1 Build 2522 has been released

I have gone ahead and made the next release.
All download areas have been updated with the latest.
Thanks to those who assisted me with this release.

Also, please be sure to look at the new piece of documentation in the docs folder.
It is a take-away from my talk at the Firebird Conference in Prague this year.

Optimizing Queries and Transactions

Here is a copy of the latest release notes:

Jason Wharton