Merge pull request #287 from stan-dev/issue/release-notes-2.0.0

Issue/release notes 2.0.0

RELEASE-NOTES.txt

@@ -1,22 +1,89 @@
 STAN RELEASE NOTES
 ======================================================================
 
-HOW TO (developer notes on how to release, last column is ordering)
-----------------------------------------------------------------------
- 1.  Stan C++ M.m.p frozen        (stan/src)                     
- 2.  Stan manual M.m.p frozen     (stan/docs/stan-reference/)
- 3.  RStan M.m.p frozen           (stan/rstan)                   > 1
- 4.  Stan web pages M.m.p frozen  (stan/web)
- 5.  tag release vM.m.p in git, push to Google Code              > 1--4
- 6.  Build Stan tarball and upload to Google Code->Download      > 5
- 7.  Build manual pdf & upload to Google Code->Download          > 5
- 8.  Build Rstan & upload to Google Code->Download, Google URL   > 5
- 9.  Upload web pages to mc-stan.org                             > 1--8
-10.  Announce                                                    > 9
+v2.0.0 (16 October 2013)
+======================================================================
+
+This list is incomplete.  The 2.0.0 update is a huge fix, and this
+list just represents what was clearly called out in pull requests.
+
+Enhancements
+----------------------------------
+* all new hierarchical command-line interface
+* compiler flags to build with Xcode 5 (which has too-small template-depth)
+* BFGS optimization
+* print variable name when initialization fails
+* reserved function names (breaks backward compatibility)
+* deprecate direct use of lp__ in favor of increment_log_prob()
+* unfolded softmax for more efficiency, optimized and vectorized categorical
+* new Cholesky factor data type
+* upgraded to Boost 1.54 and Eigen 3.2.0
+* added flag to suppress Jacobian adjustment in log prob (for
+  optimizers)
+* added Rayleigh distribution
+* added Bessel (and modified Bessel) functions of first and second
+  kind
+* added Pochhammer functions (rising/falling factorials)
+* completed vectorization of univariate distributions
+* trapped use of "." in variable names and print error
+* moved RStan into its own subproject
+* rewrote writer interface for samples
+* added delete method to chainables to allow exceptions in
+  constructors
+* added sort and rank functions
+* improved doc and coding for GP example models
+* shuffle function signature tests for test speed
+* new gradient functionality for memory allocation and cleaning
+  and to reduce code duplication
+
+Bug Fixes
+----------------------------------
+* remove function signatures from undocumented functions
+* fixed broken abs(real) signature;  deprecated abs(real) in favor
+  of fabs(real)
+* error checking for dirichlet
+* fix bin/print to be row major
+* suppress warnings for unused variables; cleanup truly unused ones
+* fixed pow() boundary conditions with negative base, fractional
+exponent
+* fix model tests and error codes
+* fix command-line return codes to be more compliant
+* fix build parameter names to be more compliant with conventions
+* fix integer vs. real problems in some RNGs
+* fix print so that it prints expression values, not just names
+* fix Newton optimization backtrack to eventually terminate with
+  failure rather than looping infinitely
+* fix CSV output from command for matrices (was transposed)
+* fixes to allow Stan to build under Cygwin 
+* fix double indexing on LHS of assignment
+* fix nested expression prints to allow indexed array sizes in
+  declarations
+* fix parameterization of gamma RNG
+* reserved model's class name as variable
+* added vector size test in assignment
+* fixed mixture examples
+* fixed rep_vector to work with integer value
+* fixed parser error message 
+* fixed use of Boost NaN tests
+* initialze local variables to NaN to prevent segfaults if used
+  before defined
+* remove unused includes from model header
+* fix signed/unsigned warnings in tests and code
+* validate that init=0 is valid starting value and raise error if not
+* fix diag_pre_multiply loop bound
+
+
+Doc
+---------------------------------
+* made all user-suggested cleanups and changes to doc
+* new basic programming section
+* new chapter for new command line
+
 
 
 v1.3.0 (12 April 2013)
 ======================================================================
+
 Enhancements
 ----------------------------------