Release 0.70.0

Release 0.70.0 - 24-02-01

Added

• GA_sign_transaction: Added opt-in support for spending expired CSV outputs
  using their recovery path (i.e. using only the users signature). This
  results in lower fees and also does not require 2FA for spending.
• GA_sign_transaction/GA_send_transaction: Allow signing/sending transactions
  without requiring 2FA when eligible. Expired inputs, non-wallet inputs,
  and sweep inputs for example will no longer trigger 2FA checks.
• GA_sign_transaction/GA_send_transaction: Allow re-signing/re-sending
  transactions that are already fully or partially signed. 2FA checks are
  not required for re-signing/re-sending already signed inputs.
• GA_sign_transaction/GA_send_transaction: Allow watch-only sessions to sign
  and send sweep transactions using the same flow as full sessions.
• GA_send_transaction: Allow sending transactions that are not wallet-related
  or contain inputs that are not wallet-related. This allows callers to
  always use GA_send_transaction rather than introspecting transactions to
  determine whether to use GA_broadcast_transaction.
• Added a new, experimental API GA_psbt_from_json to create a PSBT/PSET from
  the result of GA_create_transaction/GA_blind_transaction.
• GA_psbt_get_details: Various fixes to returned data to more accurately
  reflect the transaction details. In particular, the returned fee and fee
  rate are now correct.
• BC-UR: Added support for mapping CBOR to JSON for a subset of CBOR. This
  allows decoding Jade-RPC calls into JSON, for example.

Changed

• GA_create_transaction: A new error "Insufficient funds for fees" is
  returned when there are sufficient inputs to pay the sent amount(s), but
  not enough to pay for fees.
• The deprecated "script_type" element has been removed from returned
  address, UTXO and transaction list JSON.
• GA_psbt_sign/GA_psbt_get_details: The required "utxos" element for signing
  can now be given in the format returned by GA_get_unspent_outputs directly,
  in addition to the existing support for passing it as a flat JSON array.
• GA_login_user: Return a "warnings" array containing any login warnings.
• Build: Updated various third-party dependencies.
• Android: Updated Android NDK to r26b LTS, and API level to 23.

Fixed

• Fees: Improve fee estimation accuracy, particularly for singlesig. Fees
  will be lower for all transaction types in almost all cases.
• Liquid: Fix "calculated_fee_rate" for Liquid transactions.
• Multisig: Fixed the fee and fee rate becoming incorrect after signing
  only the users inputs.
• Build: Various build process improvements and fixes.