v30.1.0

Fix

• (Layer-based) Geometry construction handles layerless volumes (#2514) (6474bd2) (@paulgessinger)
• Initialize output in RefittingAlgorithm (#2503) (691f1d5) (@andiwand)
• Fix Geant4 initial particle translation (#2492) (7719ac6) (@andiwand)
• Root hashes after tgeo thickness gap bug (#2502) (ff17e5b) (@asalzburger)
• Properly sort candidates in NavigationStateUpdators (#2483) (ffc9e12) (@dimitra97)

Feature

• Python bindings for Geant4 manager and handle (#2500) (f2c21c2) (@andiwand)
• dd4hep surface factory (#2501) (a3013a0) (@asalzburger)
• Add material conversion + test for TGeo (#2496) (c50a62d) (@asalzburger)
• Add angles of incidence in RootMeasurementWriter (#2493) (dd3348c) (@gagnonlg)
• Make CKF branching configurable from python (#2486) (363d111) (@andiwand)
• Add time to impact point estimation (#2414) (8b146dc) (@felix-russo)
• Extract impact parameters and their covariance matrix (#2464) (a23fe6d) (@felix-russo)

Refactor

• Rename ambi output in Python examples (#2504) (42fca85) (@andiwand)
• Rename maximumChi2CutForSeeding (#2495) (e349434) (@felix-russo)
• Align initial track param covariance (#2491) (20fa776) (@andiwand)
• Rename local variables and improve comments for IVF (#2485) (4a4f858) (@felix-russo)
• Remove obsolete assignments due to calculateTrackQuantities() (#2487) (753dbec) (@AJPfleger)

Chore

• Move nested Support to ProtoSupport (#2497) (fa0a8d4) (@asalzburger)

Performance

• Do not sort track state candidates with chi2 above cut-off. (#2489) (29bd620) (@goetzgaycken)

CI

• Update LCG tests (#2410) (4515f2c) (@paulgessinger)