I have gone through the resolved JIRAs for 0.11, and here is what I believe needs to go into the documentation. Please, let me know if I missed anything. Also, I have not looked and anything that has not yet been committed:
Bloom filter UDF: https://issues.apache.org/jira/browse/PIG-2328
Clear command in Grunt: https://issues.apache.org/jira/browse/PIG-2706 - this is already in the docs
RANK operator: https://issues.apache.org/jira/browse/PIG-2353 - this is already in docs
UDF convinience classes: https://issues.apache.org/jira/browse/PIG-2547
More efficient tuple support: https://issues.apache.org/jira/browse/PIG-2359
Pluggable progress notification: https://issues.apache.org/jira/browse/PIG-2525
Merge join after ORDER BY: https://issues.apache.org/jira/browse/PIG-2673
Measure time spent in UDF: https://issues.apache.org/jira/browse/PIG-2855
Storage func improvements: https://issues.apache.org/jira/browse/PIG-1891
UDFs to flatten bags: https://issues.apache.org/jira/browse/PIG-2166
Make Tuple iterable: https://issues.apache.org/jira/browse/PIG-2724
New accumulate interface: https://issues.apache.org/jira/browse/PIG-2651
RUBY UDF: https://issues.apache.org/jira/browse/PIG-2317 . Looks like this is also in 0.10. Was documentation for this committed to 10?
Re-aliasing: https://issues.apache.org/jira/browse/PIG-438 . Looks like this is also in 0.10. Was documentation for this committed to 10?
Groovy UDFs: https://issues.apache.org/jira/browse/PIG-2763 Docs already committed
Native cube operator: https://issues.apache.org/jira/browse/PIG-2710 - docs at: http://goo.gl/SpUad
Better map support: https://issues.apache.org/jira/browse/PIG-2600 - This needs release notes to include in docs.
Bill Graham 2012-10-22, 20:57
Olga Natkovich 2012-10-22, 21:56