What's Changed

• deprecate: addParameter, newParameter, and removeParameter deprecation by @cadenmyers13 in #214
• dep: getValue deprecation in favor of snake case by @cadenmyers13 in #215
• fix: clean up core srfit before the subpackage split by @cadenmyers13 in #217
• fix: fail tests when srfit calls its own deprecated API by @cadenmyers13 in #216
• feat: export the fitbase API from diffpy.srfit by @cadenmyers13 in #218
• refactor: bring diffpy.srfit.util up to standards by @cadenmyers13 in #220
• deprecate and refactor: deprecate camelCase functions in diffpy.srfit.equation and refactor test for pytest format by @cadenmyers13 in #221
• refactor and style: Refactor unittest tests for in favor of pytest and update docstrings in fitbase by @cadenmyers13 in #222
• fix: Replaced deprecated setScatteringFactorTableByType with scatteringfactortable by @cadenmyers13 in #225
• chore: point README CI badge at matrix-and-codecov.yml by @cadenmyers13 in #224
• fix: allow constraints and restraints to be added after recipe is evaluated by @cadenmyers13 in #226
• fix: fix .show() crash when restraints weren't added add_soft_bounds() by @cadenmyers13 in #227
• test: fix pytest warnings being raised by @cadenmyers13 in #228
• docs: fix API docstrings that don'tt render and broken example README by @cadenmyers13 in #229
• dep & test: Replace deprecated functions and add tests for interface.py by @cadenmyers13 in #230
• Parsertest fix by @cadenmyers13 in #231

Full Changelog: 3.3.1...3.4.0-rc.0