# A clear and descriptive title (No issue numbers please) > _This template is rather extensive. Fill out all that you can, if are a new contributor or you're unsure about any section, leave it unchanged and a reviewer will help you_ :smile:. _This template is simply a tool to help everyone remember the BioJulia guidelines, if you feel anything in this template is not relevant, simply delete it._ ## Types of changes This PR implements the following changes: _(Please tick any or all of the following that are applicable)_ - [ ] :sparkles: New feature (A non-breaking change which adds functionality). - [ ] :bug: Bug fix (A non-breaking change, which fixes an issue). - [ ] :boom: Breaking change (fix or feature that would cause existing functionality to change). ## :clipboard: Additional detail - If you have implemented new features or behaviour - **Provide a description of the addition** in as many details as possible. - **Provide justification of the addition**. - **Provide a runnable example of use of your addition**. This lets reviewers and others try out the feature before it is merged or makes it's way to release. - If you have changed current behaviour... - **Describe the behaviour prior to you changes** - **Describe the behaviour after your changes** and justify why you have made the changes, Please describe any breakages you anticipate as a result of these changes. - **Does your change alter APIs or existing exposed methods/types?** If so, this may cause dependency issues and breakages, so the maintainer will need to consider this when versioning the next release. - If you are implementing changes that are intended to increase performance, you should provide the results of a simple performance benchmark exercise demonstrating the improvement. Especially if the changes make code less legible. ## :ballot_box_with_check: Checklist - [ ] :art: The changes implemented is consistent with the [julia style guide](https://docs.julialang.org/en/v1/manual/style-guide/). - [ ] :blue_book: I have updated and added relevant docstrings, in a manner consistent with the [documentation styleguide](https://docs.julialang.org/en/v1/manual/documentation/). - [ ] :blue_book: I have added or updated relevant user and developer manuals/documentation in `docs/src/`. - [ ] :ok: There are unit tests that cover the code changes I have made. - [ ] :ok: The unit tests cover my code changes AND they pass. - [ ] :pencil: I have added an entry to the `[UNRELEASED]` section of the manually curated `CHANGELOG.md` file for this repository. - [ ] :ok: All changes should be compatible with the latest stable version of Julia. - [ ] :thought_balloon: I have commented liberally for any complex pieces of internal code.