CHANGELOG

== Version 3.4.1 ==
_Release date - Aug 22, 2025_

* Bugfix: Fix a significant oversight in **GrackleConfig.cmake**
  https://github.com/grackle-project/grackle/pull/330
* Bugfix: H2 self shielding length scale factor fix
  https://github.com/grackle-project/grackle/pull/325
* Bugfix: address a bug in calc_temp_cloudy_g.F
  https://github.com/grackle-project/grackle/pull/367
* Enhancement: Standard Status Reporting Machinery
  https://github.com/grackle-project/grackle/pull/269
* Enhancement: Remove pygrackle/api.py & pygrackle/utilities/api.py
  https://github.com/grackle-project/grackle/pull/352
* Enhancement: Rename pygrackle -> gracklepy (so we can upload to PyPI)
  https://github.com/grackle-project/grackle/pull/371 
* Build-System: (core lib) introduce CMakePresets.json to enable compiler warnings in a CI job https://github.com/grackle-project/grackle/pull/334
* Build-System: (core lib) Relocated all CMake dependency information into dependencies.cmake https://github.com/grackle-project/grackle/pull/296
* Build-System: (core lib) assorted tweaks: https://github.com/grackle-project/grackle/pull/326 https://github.com/grackle-project/grackle/pull/329 https://github.com/grackle-project/grackle/pull/337 
* Build-System: (gracklepy) tweak cython handling https://github.com/grackle-project/grackle/pull/319 https://github.com/grackle-project/grackle/pull/328
* Build-System: (gracklepy) Introduce dependency groups https://github.com/grackle-project/grackle/pull/347
* Testing: Support running subset of gracklepy test without an editable install
  https://github.com/grackle-project/grackle/pull/335
* Testing: Move `test_chemistry_struct_synched` between test suites
  https://github.com/grackle-project/grackle/pull/327
* Documentation: gracklepy test instruction tweaks
  https://github.com/grackle-project/grackle/pull/309
* Assorted tweaks to appearance of doc website
  https://github.com/grackle-project/grackle/pull/285
  https://github.com/grackle-project/grackle/pull/291
  https://github.com/grackle-project/grackle/pull/346
* Documentation: Fix spacing issues in docs
  https://github.com/grackle-project/grackle/pull/340
* Documentation: Simplify GitHub hyperlinks for repository locations in docs
  https://github.com/grackle-project/grackle/pull/300
* Documentation: Add more detail to gracklepy build documentation
  https://github.com/grackle-project/grackle/pull/294
* Documentation: Added missing He
  https://github.com/grackle-project/grackle/pull/362
* Documentation: Added chemistry network table
  https://github.com/grackle-project/grackle/pull/361
* Infrastructure: Optimize circleci workflows
  https://github.com/grackle-project/grackle/pull/338
* Infrastructure: Introduce an extremely simplistic `.pre-commit-config.yaml` file
  https://github.com/grackle-project/grackle/pull/348
* Infrastructure: Introduce GHA to upload Gracklepy wheels to PyPI
  https://github.com/grackle-project/grackle/pull/320
  https://github.com/grackle-project/grackle/pull/355
  https://github.com/grackle-project/grackle/pull/356
* Infrastructure: Bump pypa/cibuildwheel version
  https://github.com/grackle-project/grackle/pull/360
  https://github.com/grackle-project/grackle/pull/363
  https://github.com/grackle-project/grackle/pull/365
  https://github.com/grackle-project/grackle/pull/372
* Infrastructure: Move test-data retrieval logic into ``scripts/ci/fetch-test-data.py``
  https://github.com/grackle-project/grackle/pull/307
* Address flake8 warnings (in files that it previously ignored)
  https://github.com/grackle-project/grackle/pull/368
  https://github.com/grackle-project/grackle/pull/369
* Infrastructure: Use builtin GitHub feature to nicely redirect to Code of
  Conduct
  https://github.com/grackle-project/grackle/pull/342
* Infrastructure: Convert README.md to README.rst (and deduplicate content on
  the website landing page)
  https://github.com/grackle-project/grackle/pull/350
  https://github.com/grackle-project/grackle/pull/351

== Version 3.4 ==
_Release date - May 14, 2025_

  * Enhancement: headers can now be directly included in C++ source files (without wrapping them in `extern "C"` blocks)
    https://github.com/grackle-project/grackle/pull/199
  * Enhancement: Updating behavior of `HydrogenFractionByMass` parameter
    https://github.com/grackle-project/grackle/pull/200
  * Enhancement: Introduce `gr_initialize_field_data` function
    https://github.com/grackle-project/grackle/pull/205
    https://github.com/grackle-project/grackle/pull/233
  * Enhancement: Introduce `GR_SUCCESS` and `GR_FAIL` as named constants for status-reporting
    https://github.com/grackle-project/grackle/pull/217
  * Enhancement: `get_temperature_units` and `get_velocity_units` now accept `const* code_units` as an argument
    https://github.com/grackle-project/grackle/pull/230
  * Enhancement: Introduce `gr_required_units` function
    https://github.com/grackle-project/grackle/pull/209
  * Enhancement: Introduce `gr_check_consistency` function
    https://github.com/grackle-project/grackle/pull/279
  * Enhancement: allow unsupported simulation types to work with grackle yt fields.
    https://github.com/grackle-project/grackle/pull/213
  * Bugfix: fix import VisibleDeprecationWarning numpy 2.0
    https://github.com/grackle-project/grackle/pull/240
  * Bugfix: Tweaks required for 3.4 release (Fortran Binding bugfix and a few removals)
    https://github.com/grackle-project/grackle/pull/265
  * Bugfix: Backport some minor bugfixes
    https://github.com/grackle-project/grackle/pull/289
  * Bugfix: Fix bugs in $H_2$ self-shielding implementations in solve_rate_cool_g.F
    https://github.com/grackle-project/grackle/pull/299
  * Infrastructure: Refactoring so all autogenerated files are put in separate dir
    https://github.com/grackle-project/grackle/pull/203
  * Infrastructure: Introducing Experimental Supplementary CMake Build System
    https://github.com/grackle-project/grackle/pull/182
    https://github.com/grackle-project/grackle/pull/238
  * Infrastructure: Fixup query_version.py
    https://github.com/grackle-project/grackle/pull/242
  * Infrastructure: mach file for fedora
    https://github.com/grackle-project/grackle/pull/252
  * Infrastructure: Rename `config` directory so that it's now called `support`
    https://github.com/grackle-project/grackle/pull/305
  * Infrastructure: Address Less Common CMake Configuration Issues
    https://github.com/grackle-project/grackle/pull/310
  * Infrastructure: Mention Enzo-E as an example for auto-install
    https://github.com/grackle-project/grackle/pull/314
  * Infrastructure: Testing Refactor
    https://github.com/grackle-project/grackle/pull/215
  * Infrastructure: Convert reaction rate test to gold standard model
    https://github.com/grackle-project/grackle/pull/236
  * Infrastructure: Update grackle data files submodule.
    https://github.com/grackle-project/grackle/pull/239
  * Infrastructure: Transition `Pygrackle` from `setuptools` to `scikit-build-core`
    https://github.com/grackle-project/grackle/pull/208
  * Infrastructure: Example Google Test created
    https://github.com/grackle-project/grackle/pull/243
  * Infrastructure: Answer test refactor
    https://github.com/grackle-project/grackle/pull/245
  * Infrastructure: Convert `cxx_grid_example` to a googletest test-case
    https://github.com/grackle-project/grackle/pull/254
  * Infrastructure: Tweaking code example tests
    https://github.com/grackle-project/grackle/pull/258
  * Infrastructure: Make `pytest` invokable from the root directory
    https://github.com/grackle-project/grackle/pull/282
  * Infrastructure: Add instructions for running the corelib tests
    https://github.com/grackle-project/grackle/pull/284
  * Infrastructure: 2 minor (but important) googletest-related CMake tweaks
    https://github.com/grackle-project/grackle/pull/295
  * Infrastructure: gracefully handle `yt_grackle` test-case when `YT_DATA_DIR` isn't defined
    https://github.com/grackle-project/grackle/pull/302
  * Documentation: Better Describe Local Functions - with `"sphinx_tabs"`
    https://github.com/grackle-project/grackle/pull/206
  * Documentation: Adopt ReadTheDocs theme
    https://github.com/grackle-project/grackle/pull/221
  * Documentation: add a list of software that uses Grackle to the `README.md` file
    https://github.com/grackle-project/grackle/pull/225
  * Documentation: Updating the README
    https://github.com/grackle-project/grackle/pull/293
  * Deprecation: Deprecate public headers other than `grackle.h` and `grackle.def`
    https://github.com/grackle-project/grackle/pull/229
    https://github.com/grackle-project/grackle/pull/288
  * Deprecation: Deprecated classic build system (scheduled for removal in the next PR)
    https://github.com/grackle-project/grackle/pull/304
  * Infrastructure: Moved public headers into a separate directory.
    https://github.com/grackle-project/grackle/pull/188
  * Enhancement: Remove the lone `cimport numpy` line
    https://github.com/grackle-project/grackle/pull/224
  * Enhancement: Centralized configuration information within __config__.py.in
    https://github.com/grackle-project/grackle/pull/244
  * Intrastructure: Fix ReadTheDocs doc CI build
    https://github.com/grackle-project/grackle/pull/257
  * Infrastructure: CI: shift core-library tests to a separate "job"
    https://github.com/grackle-project/grackle/pull/283
  * Infrastructure: Circleci tweaks -- from Gold Standard Update
    https://github.com/grackle-project/grackle/pull/298
    https://github.com/grackle-project/grackle/pull/308
  * Infrastructure: `src/example/Makefile` cleanup
    https://github.com/grackle-project/grackle/pull/311
  * Enhancement: Introduce a warning discouraging people from using ``pygrackle.utilities.data_path.grackle_data_dir`` in external code
    https://github.com/grackle-project/grackle/pull/297

== Version 3.3 ==
_Release date - May 27, 2024_

  * New Feature: Add temperature floor field
    https://github.com/grackle-project/grackle/pull/159
  * Enhancement: Refactor the `cloudy_data` struct so that the `grid_{dimension,parameters}` members are fixed-size arrays
    https://github.com/grackle-project/grackle/pull/167
  * Enhancement: Add error-check on `grackle_field_data.grid_dx`
    https://github.com/grackle-project/grackle/pull/190, https://github.com/grackle-project/grackle/pull/191
  * Bugfix: Minor tweaks to `initialize_rates.c`
    https://github.com/grackle-project/grackle/pull/168
  * Bugfix: explicitly initialize all struct members to solve plethora of issues
    https://github.com/grackle-project/grackle/pull/166
  * Bugfix: Fix memory leak
    https://github.com/grackle-project/grackle/pull/169
  * Bugfix: Add missing fields to pygrackle
    https://github.com/grackle-project/grackle/pull/173
  * Bugfix: Fix pygrackle H number density and mean molecular weight calculations
    https://github.com/grackle-project/grackle/pull/180
  * Documentation: Add mention of c_local_example to docs
    https://github.com/grackle-project/grackle/pull/174
  * Documentation: Fix a minor typo in documentation related to `grid_dx`
    https://github.com/grackle-project/grackle/pull/176
  * Documentation: Document release procedure and describe versioning policy
    https://github.com/grackle-project/grackle/pull/194
  * Infrastructure: Introduce `c_local_example` and fixed inconsistencies in `c_example`
    https://github.com/grackle-project/grackle/pull/170
  * Infrastructure: Update linux-gnu makefile
    https://github.com/grackle-project/grackle/pull/183
  * Infrastructure: Add `c_local_example` to list of executable removed by `make clean`
    https://github.com/grackle-project/grackle/pull/186
  * Infrastructure: Factor out some file-generation machinery
    https://github.com/grackle-project/grackle/pull/181
  * Deprecation: Removed functions deprecated in version 3.2
    https://github.com/grackle-project/grackle/pull/184

== Version 3.2.1 ==
_Release date - Jul 19, 2023_

  * Bugfix: Add missing return value in local_free_chemistry_data
	https://github.com/grackle-project/grackle/pull/161
  * Bugfix: Add missing declaration of local_free_chemistry_data
	https://github.com/grackle-project/grackle/pull/163

== Version 3.2 ==
_Release date - May 22, 2023_

  * New Feature: Enhanced dust treatment
	https://github.com/grackle-project/grackle/pull/43,
	https://github.com/grackle-project/grackle/pull/94
  * New Feature: Use Grackle in yt fields
	https://github.com/grackle-project/grackle/pull/62
  * New Feature: New high density cooling table
	https://github.com/grackle-project/grackle/pull/71
  * New Feature: Callable functions for all reaction rates
	https://github.com/grackle-project/grackle/pull/87
  * New Feature: New get_velocity_units and get_temperature_units
	functions https://github.com/grackle-project/grackle/pull/97,
	https://github.com/grackle-project/grackle/pull/96
  * New Feature: Updated H2 self-shielding (reissue of PR #72)
	https://github.com/grackle-project/grackle/pull/98
  * New Feature: New dynamic API
	https://github.com/grackle-project/grackle/pull/130,
	https://github.com/grackle-project/grackle/pull/141
  * Enhancement: Use gamma in mean molecular
	weight. https://github.com/grackle-project/grackle/pull/65
  * Enhancement: Add ability to query the Grackle Version
	https://github.com/grackle-project/grackle/pull/109
  * Enhancement: Embed compiled precision into grackle
	header. https://github.com/grackle-project/grackle/pull/118
  * Enhancement: Convert iteration limit to a runtime parameter
	https://github.com/grackle-project/grackle/pull/124
  * Enhancement: Pygrackle mu improvements
	https://github.com/grackle-project/grackle/pull/54
  * Enhancement: Change redshift interpolation to log(1+z)
	https://github.com/grackle-project/grackle/pull/126
  * Enhancement: Significant Pygrackle refactor
	https://github.com/grackle-project/grackle/pull/88,
	https://github.com/grackle-project/grackle/pull/140
  * Enhancement: Add updated H2-H rate based on Lique (2015)
	https://github.com/grackle-project/grackle/pull/61
  * Enhancement: Add test of synchronization between ``chemistry_data``
	and dynamic
	API. https://github.com/grackle-project/grackle/pull/136
  * Enhancement: Modified the ``chemistry_data`` struct so that the
	``omp_nthreads`` is always a field
	https://github.com/grackle-project/grackle/pull/148
  * Enhancement: Add machine file for tigercpu at Princeton
	https://github.com/grackle-project/grackle/pull/74
  * Enhancement: MacOS Big Sur makefile
	https://github.com/grackle-project/grackle/pull/84
  * Enhancement: Updating makefiles for NASA's HECC machines
	https://github.com/grackle-project/grackle/pull/86
  * Enhancement: Updates for Stampede Builds
	https://github.com/grackle-project/grackle/pull/58
  * Bugfix: Mmw bugfix https://github.com/grackle-project/grackle/pull/79
  * Bugfix: fix energy and pressure units in pygrackle
	https://github.com/grackle-project/grackle/pull/49
  * Bugfix: Update cool1d_multi_g.F
	https://github.com/grackle-project/grackle/pull/59
  * Bugfix: Fixing lifetime issue for grackle_data_path in the Cython
	Grackle wrapper https://github.com/grackle-project/grackle/pull/80
  * Bugfix: Fix velocity_units in freefall.py
	https://github.com/grackle-project/grackle/pull/92
  * Bugfix: fix internal velocity units
	https://github.com/grackle-project/grackle/pull/97
  * Bugfix: Fix line length issues
	https://github.com/grackle-project/grackle/pull/102
  * Bugfix: Avoid use of uninitialized variables when setting the timestep
	in dense gas https://github.com/grackle-project/grackle/pull/103
  * Bugfix: Modify property calculations to respect `grid_start` and
	`grid_stop` https://github.com/grackle-project/grackle/pull/106
  * Bugfix: provide sensible version info without git
	https://github.com/grackle-project/grackle/pull/114
  * Bugfix: Change get_grackle_version to explicitly accept zero
	arguments. https://github.com/grackle-project/grackle/pull/115
  * Bugfix: Changing _inner_range to `static inline` to avoid undefined
	reference https://github.com/grackle-project/grackle/pull/117
  * Bugfix: Remove duplicate precision definition during compile
	https://github.com/grackle-project/grackle/pull/137
  * Bugfix: Changed the type of ``chemistry_data``'s ``grackle_data_file``
	field from ``char*`` to ``const char*``
	https://github.com/grackle-project/grackle/pull/147
  * Bugfix: Replaced ``size_t`` with ``unsigned int`` in the dynamic api
	functions. https://github.com/grackle-project/grackle/pull/149
  * Bugfix: Bugfix: making inline legacy internal grackle functions work
	in C codes https://github.com/grackle-project/grackle/pull/157
  * Documentation: Update comment
	https://github.com/grackle-project/grackle/pull/52
  * Documentation: Add instructions for how to initialize data
	submodule. https://github.com/grackle-project/grackle/pull/82
  * Documentation: Updated Documentation
	https://github.com/grackle-project/grackle/pull/90
  * Documentation: Expand units documentation and remove ceiling on metal
	density https://github.com/grackle-project/grackle/pull/121
  * Documentation: Document optimization issues in Fortran example with
	gfortran 9.2.1 & 9.4.0
	https://github.com/grackle-project/grackle/pull/125
  * Documentation: Add warnings about compiling in single
	precision. https://github.com/grackle-project/grackle/pull/120
  * Documentation: Add documentation for CaseBRecombination
	parameter. https://github.com/grackle-project/grackle/pull/122
  * Documentation: Add clarification to docs on electron
	density. https://github.com/grackle-project/grackle/pull/131
  * Documentation: documentation fixes for later sphinx versions
	https://github.com/grackle-project/grackle/pull/132
  * Documentation: Need cstddef or size_t undefined
	https://github.com/grackle-project/grackle/pull/144
  * Documentation: Expand discussion in documentation of cooling
	units. https://github.com/grackle-project/grackle/pull/154
  * Documentation: Add warning about self-shielding cooling
	tables. https://github.com/grackle-project/grackle/pull/155
  * Infrastructure: Switch from csh to bash in
	configure. https://github.com/grackle-project/grackle/pull/47
  * Infrastructure: add data files as submodule
	https://github.com/grackle-project/grackle/pull/75
  * Infrastructure: Update pygrackle version to 1.0.0 and add
	metadata. https://github.com/grackle-project/grackle/pull/151
  * Deprecation: Functions taking all field arrays as arguments (starting
	in "_") https://github.com/grackle-project/grackle/pull/44
  * Depreaction: Remaining functions starting with "_"
	https://github.com/grackle-project/grackle/pull/139

== Version 3.1.1 ==
_Release date - Jul 1, 2019_

  * Enhancement: add function for clearing locally declared grackle data
	struct.
  * Enhancement: added API for Grackle functionality using local data
	structures.
  * Enhancement: added/enhanced documentation for various runtime
	parameters.
  * Enhancement: added make file for ORNL Summit.
  * Bugfix: make sure all parameters correctly printed after
	initialization.
  * Bugfix: correct H mass fraction for tabulated cooling mode.
  * Bugfix: fix memory allocation in C example.
  * Bugfix: fix scaling of H2 photo-dissociation rate by Lyman-Werner
	intensity.
  * Bugfix: fix thread-safety issue with updating UVB rates.
  * Bugfix: OpenMP private variable list updated.
  * Bugfix: correct H number density calculation for self-shielding.
  * Bugfix: fix scaling of H2 and H2+ rates from UV background.

== Version 3.1 ==
_Release date - Apr 3, 2018_

  * New feature: New metal cooling tables that include atomic
	self-shielding corrections for both Haardt & Madau and
	Faucher-Giguere tables.  These tables have “_shielded” appended to
	the filenames.
  * New feature: H2 self-shielding of Lyman-Werner radiation using the
	Wolcott-Green et al. (2011) model. Length scales for H2 column
	density can be calculated using 1) neighboring grid zones (grid
	codes only), 2) a user-supplied array of lengths, or 3) the local
	Jeans length.
  * Enhancement: pygrackle Python wrapper now compatible with Python 3.
	Pygrackle works with Python 3.4 and later. Python 2.7 is still
	supported.
  * Enhancement: Added low-temperature (T < 30 K) term to (HI + HII ->
	H2II + p) rate.
  * Enhancement: Allow UV background parameters, UVbackground_redshift_on,
	UVbackground_redshift_fullon, UVbackground_redshift_drop, and
	UVbackground_redshift_on, to be user-settable and make
	redshift-dependent ramping factor symmetric in redshift.
  * Enhancement: Single consistent tolerance value used in solver.
  * Enhancement: Volumetric and specific heating arrays now setable from
	Python interface.
  * Enhancement: Automated testing using Bitbucket Pipelines.
  * Enhancement: New/updated make files for NCSA Blue Waters and Caltech
	Wheeler.
  * Bugfix: Fixed scaling and unit conversion issues with volumetric and
	specific heating rate arrays and added tests.
  * Bugfix: Fixed scaling issue of metal cooling rates.  Metal cooling
	rates will change by a factor of (1 / 0.76).
  * Bugfix: Source code format fixes for radiative transfer fields.
  * Bugfix: Fixed issue where NaNs occurred in atomic self-shielding when
	redshift is greater than turn-on redshift for UV background.
  * Bugfix: Fixed OpenMP compilation errors.
  * Bugfix: Fixed memory allocation in C example.
  * Bugfix: Fixed precision issues with radiation transfer field
	variables.
  * Bugfix: Fixed bug in answer testing where some tests were not being
	properly compared to existing answers.
  * Documentation improvements.

== Version 3.0 ==
_Release date - Nov 1, 2016_

  * New feature: New API with fields arrays provided in a struct.
  * New feature: Added support for radiation transfer fields.
  * New feature: Added atomic self-shielding of UV backgrounds.
  * New feature: Added support for providing arrays of volumetric and
	specific heating rates.
  * Enhancement: added Case B recombination cooling rates and updated
	Case A rates.
  * Enhancement: updated testing framework to use pytest parametrized
	tests.
  * Bugfix: fixed kunit normalization for k4 Case B recombination rate.
  * Bugfix: fixed scaling of low-density H2 cooling rate and use newer H2
	LTE rate in all appropriate places.
  * Significant documentation updates and improvements.

== Version 2.2 ==
_Release date - May 18, 2016_

  * New feature: Added OpenMP support.
  * New feature: Added test suite and continuous integration testing.
  * New feature: Added support for old-style Cloudy tables used in Enzo's
	Cloudy cooling routine.  Added cooling table for high density
	metal cooling, cloudy_metals_2008_3D.h5.
  * Enhancement: Many primordial chemistry updates: updated reactions
	rates for H ionization, H- formation/destruction, H2 dissociation,
	H2+ formation, H2 LTE cooling, and HD low density cooling.  Added
	reactions for collisional ionization of H by H and H by He.
  * Enhancement: Refactored and improved pygrackle interface.
  * Bugfix: Fixed conversion of comoving to proper coordinates in
	calculation of temperature field in tabulated mode.  This only
	affected calls to calculate_temperature in tabulated mode, but not
	the actual cooling solver.
  * Removed code for old collisional rates.
  * Reduced size of row temporary variables in chemistry/cooling solver.
  * Fixed makefiles for TACC Stampede and NCSA Blue Waters.
  * Moderate documentation improvements.

== Version 2.1 ==
_Release date - Jun 3, 2015_

  * New feature: Added cooling_cell.py script to simulate the cooling of a
	single cell over time.
  * Enhancement: k19 reaction added to H- calculation.
  * Enhancement: Build system converted to using libtool.
  * Enhancement: Updated value of solar metal mass fraction to be
	consistent with Cloudy.
  * Enhancement: Mean molecular weight calculation in tabulated mode now
	correctly accounts for photo-ionization from UV backgrounds.
  * Bugfix: Metal field only considered in temperature calculation in
	tabulated mode if actually present.

== Version 2.0.1 ==
_Release date - Jan 30, 2015_

  * Enhancement: Physically motivated temperature cutoff for photo-
	electric heating added.
  * Bugfix: Spatially constant photo-electric heating now included in
	purely tabulated cooling mode.
  * Bugfix: Make sure grackle_data_file string is null-terminated.
  * Minor compilation bugfixes.
  * Installation docs updated.

== Version 2.0 ==
_Release date - Oct 1, 2014_

  * Enhancement: All C++ files converted to C for easier integration into
	C and Fortran code
  * Enhancement: Main chemistry data structure moved into grackle
	namespace.  The user is no longer responsible for carrying it.
  * Enhancement: Changeable integer precision compile flag removed for
	greater simplicity
  * Enhancement: Internal chemistry and cooling calculation now always
	done in double precision with gr_float type only used for baryon
	fields.  The Grackle can now be reliably run in 32-bit mode.
  * Enhancement: Changeable Fortran baryon field precision now controlled
	with a custom variable type for better stability
  * Enhancement: Examples now available for C, C++, and Fortran codes
  * Enhancement: Grackle output now configurable so that all processors do
	not have to print info
  * Enhancement: Version and compile options now written to a file at run
	start-up

== Version 1.1 ==
_Release date - Oct 1, 2014_

  * New feature: Static library build option
  * Enhancement: Updated H-, H2, and HD chemistry and cooling rates
  * Enhancement: Sign of returned cooling time is now preserved

== Version 1.0 ==
_Release date - Jan 10, 2014_