v1.5.7

What's Changed

• Enable negative losses by @MilesCranmer in #928
• Recommend TemplateExpressionSpec over ParametricExpressionSpec @MilesCranmer in #920
• Fix multi-output template expressions by @MilesCranmer in #921
• build: switch to hatchling by @MilesCranmer in #888
• chore(deps): bump juliacall from 0.9.24 to 0.9.25 by @dependabot in #925
• fix: turn off double warning for ParametricExpressionSpec by @MilesCranmer in #930

Full Changelog: v1.5.6...v1.5.7