v2.17.0

v2.17.0 (05 September 2017)

Bug Fixes

• Call the correct unconstrain function for covariance matrices from writer
  method (#2386)
• Better error messages (#2280, #2359)
• Deal better with 0-length simplexes (#2365)
• undefined behavior with uninitialized bool (#2344)

New User-Facing Features

• append_array function (stan-dev/math#481)
• "data" type prefix qualifier for function arguments (#2369, #2376)
• new algebraic solver (#2380, #2300, #2339)
• standalone functions (#2310)

New Internal Features

• C++11 support (#2364)
• Boost 1.64.0
• Inline many functions to allow use in multiple translation units (#2082)

Documentation

• Updates to the Gaussian Processes chapter in the manual (#2372)