Changes 8.3.16:
* Fix bugs in indexing of in-doubt HOT-updated tuples
* Fix multiple bugs in GiST index page split processing
* Fix possible buffer overrun in tsvector_concat()
* Fix crash in xml_recv when processing a "standalone" parameter
* Avoid possibly accessing off the end of memory in "ANALYZE" and in
  SJIS-2004 encoding conversion
* Fix race condition in relcache init file invalidation
* Fix memory leak at end of a GiST index scan
* Fix performance problem when constructing a large, lossy bitmap
* Fix array- and path-creating functions to ensure padding bytes are zeroes
* Work around gcc 4.6.0 bug that breaks WAL replay
* Fix dump bug for VALUES in a view
* Disallow SELECT FOR UPDATE/SHARE on sequences
  This operation doesn't work as expected and can lead to failures.
* Defend against integer overflow when computing size of a hash table
* Fix cases where "CLUSTER" might attempt to access already-removed
  TOAST data
* Fix portability bugs in use of credentials control messages for
  "peer" authentication
* Fix SSPI login when multiple roundtrips are required
* Fix typo in pg_srand48 seed initialization
* Avoid integer overflow when the sum of LIMIT and OFFSET values
  exceeds 2^63
* Add overflow checks to int4 and int8 versions of generate_series()
* Fix trailing-zero removal in to_char()
* Fix pg_size_pretty() to avoid overflow for inputs close to 2^63
* In pg_ctl, support silent mode for service registrations on Windows
* Fix psql's counting of script file line numbers during COPY from a
  different file
* more...

(adam)