Xtrack version 0.73.0

Changes:

• Fix in emittance calculation with solenoids
• Ability to slice repeated elements.
• Added a summary of key methods and attributes in the Environment class docstring.
• Anchors in line definitions:
  • env.new_line() and Builder now support anchors (env.place and env.new accept a parameter anchor valued start, end, center).
  • Enabled placement of sub-lines and handling of thin elements with clear ordering.
• Line-editing methods:
  • Introduced new Line methods: insert, append, remove, and replace.
  • Deprecated Line.insert_element and Line.append_element in favor of new methods.
  • Unified API behavior with Builder for consistency.
• Deprecation of Multiline in favour of Environment:
  • Extended Environment to handle all use cases of the deprecated Multiline.
  • API backward compatibility ensured
  • Automatic conversion of old Multiline JSON to Environment to ease transition.
  • Introduced renaming for shared elements (e.g., 'mqxfa.a1r1/lhcb1').
  • Marked Multiline for removal within 1–2 months, pending user communication and JSON re-saving.
• Apply fixes and relax some tolerances in tests after a new release of SciPy changes some of the constants in scipy.constant.

Full Changelog: v0.72.2...v0.73.0

Xtrack version 0.72.1

Changes:

• Catch start == end condition in the creation of 2nd order Taylor map #565
• Allow getting the element from Line.get_table() using the generated unique names #561
• Fix the aperture_check method of the Line #534
• Allow constructing a drift with Drift(n) and validate Particles kwargs #522
• Change the default value in the exciter #521 (default changed to zero)

New Contributors:

• @michi42 made their first contribution in #565

Full Changelog: v0.72.0...v0.72.1

Xtrack version 0.72.0

Changes:

• Add more general tilts and shifts for multipolar components in solenoids.
• Support slicing of thick-slice elements

Full Changelog: v0.71.0...v0.72.0

Xtrack version 0.71.0

Changes:

• Remove xfail in MAD-NG tests.
• Introduce xtrack.json.dump(...) and xtrack.json.load(...).
• Cleaner error message on failure to renormalize eigenvectors in twiss.
• Propagate default_tol when cloning an optimizer object.
• Autogenerate tages for optimizer targets.
• Add environment-like methods in Multiline.
• Add more customization features in TwissPlot.

Full Changelog: v0.70.3...v0.71.0

Xtrack version 0.70.2

Changes:

• Add support for refer=exit in the definition of lines
• Introduce xt.load_madx_lattice
• Introduce Line.vars.load_madx
• Introduce TwissTable.get_R_matrix_table()
• Fixes and enhancements in TwissTable.plot(...)

Full Changelog: v0.70.1...v0.70.2

Xtrack version 0.70.1

Changes:

• Fixes in tests

Full Changelog: v0.70.0...v0.70.1

Xtrack version 0.70.0

Changes

• Introduce native MAD-X parser xtrack.mad_parser.loader.MadxLoader.
• Introduce OptimizeLine.clone
• OptimizeLine.targets and OptimizeLine.vary can be accessed with tags
• Introduce take_best option in OptimizeLine.step(), active by default
• Introduce Environment.vars.to_dict(), Environment.from_json(...), Environment.vars.default_to_zero
• Introduce Environment.call(...)
• Support element insertion in lines with repeated elements.
• xt.LessThan and xt.GreaterThan support references as value.
• New properties to control aperture element parameters.
• More powerful MAD-NG interface. Introduce Line.madng_twiss().
• Fix in LineSegmentMap for high-order chromaticities
• Fix in Environment.new_line(...) s position resolution and support for refer='entry'

Full Changelog: v0.69.7...v0.70.0

Xtrack version 0.69.7

Changes:

• Fix R matrix calculation within consecutive thin elements

Full Changelog: v0.69.6...v0.69.7

Xtrack version 0.69.6

Changes

• Add Line.scattering and Line.collimators

Full Changelog: v0.69.5...v0.69.6

Xtrack version 0.69.5

Changes

• Introduce c_minus_re, c_minus_im in twiss output.
• Handle rbend and rbarc flags when setting a bend in the environment.
• Fix in sinc function.

[had missed this one before]

Full Changelog: v0.69.4...v0.69.5