Release v0.5.0

New features since last release

• Rebuilds the grammar using ANTLR v4.9.2
  (#51)

Documentation

• Updates ANTLR v4.9.2 version on the compiling grammar section.
  (#51)

Contributors

This release contains contributions from (in alphabetical order):

Kshitij Chhabra (@kshitijc), Sebastián Duque Mesa (@sduquemesa)

Release 0.4.0

Improvements

• Remove support for Python 3.5. (#38)

• Add support for Python 3.8 and 3.9. (#40)

• Add public method to retrieve Blackbird program variables via prog.variables. (#47)

• Improve match_template to automatically return matched parameters with their array values,
  rather than their array names (p0, p1, etc.) (#47)

• Remove p-type parameters from prog.parameters since they're only needed there internally and
  are otherwise stored in prog.variables. This also changes TDM programs to not be templates
  (prog.is_template now returns False). (#47)

Bug fixes

• Fix bool or string objects in for-loop iterators not working correctly. (#41)

• Update the NumPy scalar types in the Blackbird listener due to being deprecated in NumPy 1.20. (#43)

• Add access to the symbolic expression used when creating a RegRefTransform,
  as a class attribute. (#46)

Contributors

This release contains contributions from (in alphabetical order):

Theodor Isacsson

Release 0.3.0

New features since last release

• Arrays and variables now support being defined as parameters (using braces) in a Blackbird template. (#34)

• Time-domain multiplexing programs are now supported, using the syntax type tdm (temporal_modes=3, copies=1). (#30)

• For-loops are supported inside Blackbird scripts. (#24)

  They can be defined using ranges via the syntax from:to:step:

  for float v in 2:10:3
    MZgate(v, v/2) | [0, 1]

  or lists

  for int m in [0, 2, 4]
    MeasureFock() | m

• Keyword arguments are supported inside operations; for example, MeasureHomodyne(select=[0, 1]) or MeasureFock(dark_counts=[1, 0.5, 3]). (#23)

• Indexing is supported inside both modes and arguments; for example, MZgate(list[2], list[0]) | [list[3], list[1]])). All indices allow expressions such as phases[-3 + 2*2]. (#23)

Bug fixes

• Templates are no longer changed when calling them and replacing the parameters with actual values. (#34)

Documentation

• TDM programs, for-loops and array indexing is added to the docs, along with other minor updates. (#28)

This release contains contributions from (in alphabetical order):

Theodor Isacsson

Release 0.2.4

Minor updates release. Changes include:

• Updating antlr4-python3-runtime requirement to version 4.7.2
• Updating URL to correct Blackbird website

Release 0.2.1

Minor bug fix release. Changes include:

• Parsing error now correctly raises a BlackbirdSyntaxError, rather than a SystemError.

Release 0.2

New features

• Adds parametrized template support (#13)

Release 0.1

Initial release.