Metacat

Version: 1.6.0 Release

              Matthew Perry (perry@nceas.ucsb.edu)

Release Notes for 1.6.0:

------------------------

This release comes with more performance improvements, initial support for 

LSIDs (Life Sciences Identifiers) and FGDC standard, more controls for 

Metacat administrators and bug fixes. Below is the list of bug fixes and

performance improvements.

Bug Fixes: 

* Improved the indexing algorithm. Earlier indexing failed for some documents 

  randomly and used to take a lot of time to complete for others. The 

  code for indexing was changed to take care of both these problems.

* Earlier, xmlns prefix was used to determine the namespace of the document. 

  Now schemaLocation is used instead xmlns prefix to determine the namespace 

  of the document as that is a better indicator of document type. 

* INSTR was used in some SQL statements and it is not supported by Postgres. 

  So SQL statements were modified so that INSTR is not used.

* Replication was changed to include replication of deleted documents also. 

New Features:

* Added FGDC schema and XSLT so that Metacat can handle FGDC standard

* Added support for LSID. This includes modifying the stylesheets to 

  display the LSIDs, modifying the build to include a new target 

  'install-ldap'.

* Added following access control levels to Metacat:

    1. Administrators - users who can do the following:

       a. Run replication

       b. Delete any document

       c. Modify any document

       d. run indexing for any document

       e. check the logs

    2. allowedUsers - User who are allowed to submit

    3. deniedUsers - Users not allowed to submit

* Added a new skin for Ecological Society of America. 

Performance:

* Reduced size of xml_nodes by creating a new table for holding nodes from 

  deleted documents and old revisions of the documents. 

* Provided a new variable in metacat.properties where more frequently searched 

  for paths can be specified. Seperate indexes are created for these paths 

  - so that search is faster.