aiida-siesta 1.4.0

Version compatible with aiida-core>=1.3.0,<2.0.0.

Improvements

• Introduce several workchains to help the optimization of basis sets.

For developers

• Introduces dependences on aiida-optimize.
• It is supposed to be the last release before moving the development to 2.0.x (that will be compatible
  with aiida-core>=2.0.0 only).

Known bugs

• The Equation of State WorkChain crashes if the structure contains sites with same symbol but different name.