# PythTB 1.6.1 Release Notes

This release remained largely backward-compatible with version 1.5.

## Changed

- Renamed the package (previously PyTB) to avoid naming ambiguities.
- Standardized naming conventions for greater internal consistency.
- Improved and extended Berry-phase/curvature calculations.
- Updated usage patterns for the impose_pbc routine.
- Renamed `tb_model`, `set_onsite`, and `set_hop`; backward-compatible aliases were provided.

## Added

- Published a proper Python distribution with updated documentation and an improved website.
- Introduced more flexible interfaces for setting onsite energies and hopping amplitudes.
- Added new example workflows.

## Removed

- Removed add_wf from wf_array and replaced it with [] indexing syntax.