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  v2.0.0 Stable

  hloth released this 2026-08-27 19:34:09 +02:00 | 10 commits to main since this release

  v2.0.0

  Full changelog

  JavaScript, TypeScript lib

  isFreeTransfer is removed and replaced by three predicates:

  • isFree(transaction) — the journey cost nothing
  • isTransfer(transaction) — is it the free transfer
  • isCheckOut(transaction) — a check-out at a gated station

  Transaction.runCounter is renamed to dutyTrip. Byte [09] is the trip index within the vehicle's daily duty, not a free-running counter. This affects both decodeTransaction output and encodeTransaction input.

  • isFreeTransfer(t) → isFree(t) or isTransfer(t)
  • t.runCounter → t.dutyTrip

  Rust lib

  Transaction::is_free_transfer is removed and replaced by three const fn predicates:

  • is_free() — the journey cost nothing
  • is_transfer() — is it the free transfer
  • is_check_out() — a check-out at a gated station

  Transaction::run_counter is renamed to duty_trip. Byte [09] is the trip index within the vehicle's daily duty, not a free-running counter. This affects struct literals, decoding and encoding.

  Upgrading:

  • t.is_free_transfer() → t.is_free() or t.is_transfer()
  • t.run_counter → t.duty_trip

  Java, Kotlin lib

  Transaction.isFreeTransfer() is removed and replaced by three methods:

  • isFree() — the journey cost nothing
  • isTransfer() — the one free transfer a balance card earns after a paid ride
  • isCheckOut() — a check-out at a gated station

  The Transaction record component runCounter is renamed to dutyTrip, so the accessor is now dutyTrip() and the builder method TransactionBuilder.dutyTrip(int). Byte [09] is the trip index within the vehicle's daily duty, not a free-running counter.

  Upgrading:

  • t.isFreeTransfer() → t.isFree() or t.isTransfer()
  • t.runCounter() → t.dutyTrip()
  • .runCounter(n) → .dutyTrip(n) on the builder