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lines 6-159 of file: appendix/whats_new/2025.xrst
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{xrst_begin 2025 app}
{xrst_spell
   dll
   jit
   rpath
   msys
   dev
   Woverloaded
   azmul
   toml
}

Release Notes for 2025
######################



mm-dd
*****

12-30
=====
Previously, CppAD only checked for spelling errors in the documentation.
The `typos`_ package was used
to fix many spelling errors in the code (including example code).
This was done in two commits.

#. The `first commit`_
   only included the errors where typos provided a single correction
   and the error had four or more letters.

#. The second commit included changes that were individually reviewed.
   In addition the file ``typos.toml`` was added
   (this defines some CppAD typos spelling exceptions).

.. _typos: https://github.com/crate-ci/typos

{xrst_spell_off}
.. _first commit: https://github.com/coin-or/CppAD/commit/
   95146e99838fd908833846a85c72dde882b46f6a
{xrst_spell_on}


12-14
=====
#. Let p denote a dynamic parameter, z denote the constant zero,
   and e denote the constant one.
   The number of dynamic parameter operations was reduced by
   recognizing the following special cases (where p is a dynamic parameter:
   {xrst_code text}
      p = p + z
      p = p - z
      p = p * e
      p = p / e
      e = pow(p, z)
      z = pow(z, p)
      z = azmul(z, p)
      z = azmul(p, z)
   {xrst_code}

#. The :ref:`chkpoint_one-name` source code,
   when compiled with g++ version 15.2.1,
   was causing the following warnings:
   {xrst_code text}
      ... rev_sparse_hes ... was hidden [-Woverloaded-virtual=]
      ... rev_sparse_jac ... was hidden [-Woverloaded-virtual=]
      ... for_sparse_jac ... was hidden [-Woverloaded-virtual=]
   {xrst_code}
   This has been fixed.

12-07
=====
#. The :ref:`pow-name` function was identically zero (one),
   when the base (exponent) during recording was the dynamic parameter zero;
   see issue 242. This has been fixed.

#. Update the development tools (see dev_tools.sh in xrst repository).


06-23
=====
The default value for :ref:`cmake@cmake_install_libdirs` was changed from
``lib`` to ``lib;lib64`` so that ``lib64`` is also searched for library files.

04-18
=====
Increase size of matrices in the
:ref:`det_minor<link_det_minor-name>` speed tests.

04-01
=====
Fix a :ref:`conditional expressions<CondExp-name>`  bug that affect
:ref:`optimize-name` and :ref:`subgraph_sparsity-name` .
optimizing functions with

03-21
=====
If :ref:`cmake@cppad_tape_addr_type` was chosen to be `size_t` ,
a multiple definition of ``setup_random`` compiler error would occur.
This has been fixed.


02-09
=====
Systems that use windows dll files,
(msys, cygwin, and windows) would always build a static
version of the cppad library; i.e., the
`cmake@cppad_static_lib` flag was ignored in this case.
This has been changed so that the cppad_static_lib flag is always respected.
The default value for *cppad_static_lib* on msys, cygwin, and windows is true
and on other systems it is false; i.e., if you do not specify cppad_static_lib
you will get the same result as before this change.


02-02
=====
The rpath in may not have been set properly in
:ref:`cmake@cmake_install_libdirs@cppad_lib` because ``CMAKE_INSTALL_RPATH``
was not set. This has been fixed its value is printed
during the cmake command.

01-24
=====
#. Fix linking the pthread examples ( e.g. :ref:`pthread_get_started.cpp-name` )
   when the pthread library is in a non-standard location.
#. Fix linking the standard thread examples
   ( e.g. :ref:`sthread_get_started.cpp-name` )
   when the standard thread library required the pthread library.

01-17
=====
#. The :ref:`cmake@cppad_link_flags` option was added to the cmake command.

#. The detection of when ``unsigned int`` and ``size_t`` were the same,
   by the cmake command, was incorrect in cases where
   the compiler flags affected this result.

#. Fix some errors of the form *function_name*\ ``(unsigned int)``
   cannot be overloaded with *function_name*\ ``(size_t)`` .

#. The :ref:`dll_lib.cpp@Restrictions` ,
   on when the dll_lib.cpp example is tested were documented.

#. The :ref:`example_jit@Restrictions` was added to the
   jit example documentation.

01-10
=====
Split the external links at the top of the user guide into:
:ref:`user_guide@Git Repository` ,
:ref:`user_guide@Versions` ,
:ref:`user_guide@Other Links` .

{xrst_end 2025}