Solr 4.0-ALPHA was released on 3 Jul 2012. Stable version will be available soon. Some of Solr 4.0 Release Highlights are Partial updates and Solr cloud As Lucene and Solr are slowly showing up on the horizon, partial document update may be very useful for indexing documents. Can anyone suggest a sample php code or php solr client that can perform the partial update within an Apache Solr 4.0. dhanesh
