Gamspy

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- General
- Validate whether the solver is installed only for local backend.
- Change the default value of sense to Sense.FEASIBILITY.
- Support output in Container constructor.
- Fix debugging_level bug.
- Add additional checks for the validity of the license.
- Allow generateGamsString function only if the debugging level is set to "keep".
- Fix socket communication issue on license error.
- Distinguish GamspyException from FatalError. The user might catch GamspyException and continue but FatalError should never be caught.
- Fix singleton assignment bug.
- Allow an alternative syntax for variable/equation attributes (e.g. b[t].stage = 30).
- Add support for MaxPool2d/MinPool2d/AvgPool2d.
- Add support for flatten_dims for flattening n domains into 1 domain.
- Show class members groupwise in the table of contents (first methods, then properties).
- Use the new license server endpoint to verify the license type.
- Don't do extra unnecessary GAMSPy to GAMS synch after addGamsCode.
- Fix incorrect domain information of symbols created by addGamsCode
- Fix network license issue on NEOS Server.
- Replace non-utf8 bytes of stdout.
- Testing
- Remove license uninstall test to avoid crashing parallel tests on the same machine.
- Add tests for the generated solve strings for different type of problems.
- Add a test for Container output argument.
- Add tests for debugging_level.
- Add tests to verify the validity of the license.
- Add memory check script for the performance CI step.
- Add tests for the alternative syntax for variable/equation attributes.
- Add tests for pooling layers and flatten_dims
- Documentation
- Fix broken links in the documentation.
- Add a ci step to check doc links.
- Improve the wording of debugging document.
- Add pooling and flatten_dims docs.

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- General
- Fix frozen solve with non-scalar symbols.
- Fix the definition update problem while redefining an equation with definition argument.
- Introduce default directories to keep license information on upgrade.
- Add --existing-solvers and --install-all-solvers options for gamspy install solver.
- Add --uninstall-all-solvers option for gamspy uninstall solver.
- Show license path on gamspy show license command.
- Simplify the implementation of the copy container operation.
- Add Conv2d formulation for convenience
- Map GAMSPy problem types to NEOS problem types before sending the job.
- Upgrade gamspy_base and gamsapi versions to 47.6.0.
- Testing
- Add test for the frozen solve with non-scalar symbols.
- Add a test to verify the behaviour of equation redefinition with definition argument.
- Test the usage of a license that is in one of the default paths.
- Fix the issue related to reading equation records from a gdx file.
- Add tests to verify the records after reading them from a gdx file.
- Add tests for installing/uninstalling solvers.
- Add tests to verify correctness of Conv2d formulation
- Add a test to verify GAMSPy -> NEOS mapping.
- Add an execution error test.
- Documentation
- Update the documentation of install/uninstall command line arguments.
- Add a section for NN formulations

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- General
- Fix starting from a loadpoint for GAMS Engine backend.
- Fix solver options issue for GAMS Engine backend.
- Fix solver options issue for NEOS backend.
- Support external equation for GAMS Engine backend.
- Change the behaviour of expert synch mode.
- Update quick start guide with latex to pdf output.
- Fix quote issue in paths.
- Activation functions now return added equations as well.
- skip_intrinsic option added for log_softmax.
- Allow installing/uninstalling multiple solvers at once.
- Make miro_protect an option.
- Show a better help message on gamspy -h command.
- Fix missing links in api reference.
- Set default problem type as MIP instead of LP.
- Allow UniverseAlias in assignments.
- Add performance ci step to check model generation time difference.
- Update gamspy_base and gamsapi to 47.5.0.
- Documentation
- Add a warning about the manipulation of records via .records.
- Fix model attribute return type.
- Testing
- Add sat problem to the example models.

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- General
- Include variable infeasibilities in model.computeInfeasibilities().
- Remove cone equation type.
- Fix empty space issue in paths.
- Documentation
- Add gamspy probe and gamspy retrieve to the cli reference page.
- Fix typo in miro docs.

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- General
- Fix GAMS Engine get_logs return values according to the status code.
- Allow explicit port definition via environment variable to communicate with GAMS.
- Replace GamsWorkspace with GAMSPy workspace implementation.
- Remove unnecessary validation for system_directory.
- Better formatting for gamspy list solvers and gamspy list solvers -a.
- Change the structure installing licenses on offline machines.
- Fix UniverseAlias bug.
- Check standard locations for GAMS MIRO.
- Simplify toLatex output.
- Make name optional for addX syntax of adding symbols.
- Add __mod__ overload for all operables.
- Fix domain forwarding issue when trying to forward records to the same set.
- Do not convert eps to zero by default.
- Add Sand and Sor operations.
- Ensure that external equations contain == operation.
- Testing
- Use the Container that is created in the setup phase instead of creating a new one.
- Remove unnecessary init files in tests.
- Add a test for invalid port.
- Explicitly close the Container for jobs executed by ProcessPoolExecutor.
- Add a test for long running jobs with network license.
- Add tests for gamspy probe and gamspy retrieve license.
- Add test to use UniverseAlias object as domain.
- Add tests to verify that symbol creation with no name is possible.
- Documentation
- Add what is gamspy page to docs.
- Update indexing docs.
- Add a link to model library on the landing page.
- Encourage the use of the Discourse platform instead of sending direct emails to gamspygams.com.
- Add instructions on how to install a license on an offline machine.
- Update what is gamspy page model example.
- Change the order of symbol declaration and data specification in the quick start guide.
- Add equation listing, variable listing, and interoperabiltiy sections to quick start guide.
- Add gamspy.exceptions to the api reference.
- Change the order of indexing, lag-lead operations, ord-card operations and number.
- Add gamspy.NeosClient to the api reference.
- Add model attributes to docstring.

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- General
- Retry login with exponential backoff in GAMS Engine backend.
- Allow to set all model attributes that can be set before solve in GAMS.
- Fix equation listing, variable listing parsing when listing file is specified.
- Testing
- Use contextmanager to create atomic conda environments.
- Add tests for model attribute options.
- Documentation
- Fix links in the api reference.
- Add an example that shows how to embed NN to an optimization problem.