Sub-release 2.0.1

Windows Vista and XP/Server2003 Users
Important Reversion

This sub-release does not add any new functionality to the database engine. It contains a number of fixes to bugs discovered since the release.

Minor improvements:

Gentoo or FreeBSD are now detected during configuration (Ref.: Tracker CORE-1047). Contributions by Alex Peshkoff and D. Petten.
It was discovered that the background garbage collector was unnecessarily reading back versions of active records (Ref.: Tracker CORE-1071). That was removed by Vlad Horsun.
Since Firebird 1.5.3, neither the relation name nor the alias was being returned for columns participating in a GROUP BY aggregation with joins. It has been fixed, particularly to assist the IB Object data access layer to properly support its column search features on output sets.

Windows Vista and XP/Server2003 Users

Bugfix (CORE-1133) "The XNET (IPC) communication protocol would not work across session boundaries" affects those attempting to access databases using the local protocol on Windows Vista as well as those using remote terminal services locally on XP or Server 2003. This fix, done in v.2.0.1, should remove the problems encountered under these conditions.

Important Reversion

An important reversion to 1.5 behaviour has occurred in sub-release 2.0.1, as follows:

In Firebird 2.0, a deliberate restriction was imposed to prevent anyone from dropping, altering or recreating a PSQL module if it had been used since the database was opened. An attempt to prepare the DDL statement would result in an “Object in Use” exception.

Many people complained that the restriction was unacceptable because they depended on performing these metadata changes “on the fly”. The restriction has therefore been removed. However, the reversion in no way implies that performing DDL on active PSQL modules is “safer” in Firebird 2.0.1 and higher than it was in V.1.5.