# Changelog All notable changes to this library will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this library adheres to Rust's notion of [Semantic Versioning](https://semver.org/spec/v2.0.0.html). ## [Unreleased] ### Added - Implementations of `zcash_client_backend::data_api::WalletReadTransparent` and `WalletWriteTransparent` have been added. These implementations are available only when the `transparent-inputs` feature flag is enabled. - New error variants: - `SqliteClientError::TransparentAddress`, to support handling of errors in transparent address decoding. - `SqliteClientError::RequestedRewindInvalid`, to report when requested rewinds exceed supported bounds. ### Changed - Various **BREAKING CHANGES** have been made to the database tables. These will require migrations, which may need to be performed in multiple steps. - The `extfvk` column in the `accounts` table has been replaced by a `ufvk` column. Values for this column should be derived from the wallet's seed and the account number; the Sapling component of the resulting Unified Full Viewing Key should match the old value in the `extfvk` column. - A new non-null column, `output_pool` has been added to the `sent_notes` table to enable distinguishing between Sapling and transparent outputs (and in the future, outputs to other pools). Values for this column should be assigned by inference from the address type in the stored data. - MSRV is now 1.56.1. - Bumped dependencies to `ff 0.12`, `group 0.12`, `jubjub 0.9`. - Renamed the following to use lower-case abbreviations (matching Rust naming conventions): - `zcash_client_sqlite::BlockDB` to `BlockDb` - `zcash_client_sqlite::WalletDB` to `WalletDb` - `zcash_client_sqlite::error::SqliteClientError::IncorrectHRPExtFVK` to `IncorrectHrpExtFvk`. - The SQLite implementations of `zcash_client_backend::data_api::WalletRead` and `WalletWrite` have been updated to reflect the changes to those traits. - Renamed the following to reflect their Sapling-specific nature: - `zcash_client_sqlite::wallet`: - `get_spendable_notes` to `get_spendable_sapling_notes`. - `select_spendable_notes` to `select_spendable_sapling_notes`. - Altered the arguments to `zcash_client_sqlite::wallet::put_sent_note` to take the components of a `DecryptedOutput` value to allow this method to be used in contexts where a transaction has just been constructed, rather than only in the case that a transaction has been decrypted after being retrieved from the network. ### Deprecated - A number of public API methods that are used internally to support the `zcash_client_backend::data_api::{WalletRead, WalletWrite}` interfaces have been deprecated, and will be removed from the public API in a future release. Users should depend upon the versions of these methods exposed via the `zcash_client_backend::data_api` traits mentioned above instead. - Deprecated in `zcash_client_sqlite::wallet`: - `get_address` - `get_extended_full_viewing_keys` - `is_valid_account_extfvk` - `get_balance` - `get_balance_at` - `get_sent_memo` - `block_height_extrema` - `get_tx_height` - `get_block_hash` - `get_rewind_height` - `get_commitment_tree` - `get_witnesses` - `get_nullifiers` - `insert_block` - `put_tx_meta` - `put_tx_data` - `mark_sapling_note_spent` - `delete_utxos_above` - `put_receiverd_note` - `insert_witness` - `prune_witnesses` - `update_expired_notes` - `put_sent_note` - `put_sent_utxo` - `insert_sent_note` - `insert_sent_utxo` - `get_address` - Deprecated in `zcash_client_sqlite::wallet::transact`: - `get_spendable_sapling_notes` - `select_spendable_sapling_notes` ## [0.3.0] - 2021-03-26 This release contains a major refactor of the APIs to leverage the new Data Access API in the `zcash_client_backend` crate. API names are almost all the same as before, but have been reorganized. ### Added - `zcash_client_sqlite::BlockDB`, a read-only wrapper for the SQLite connection to the block cache database. - `zcash_client_sqlite::WalletDB`, a read-only wrapper for the SQLite connection to the wallet database. - `zcash_client_sqlite::DataConnStmtCache`, a read-write wrapper for the SQLite connection to the wallet database. Returned by `WalletDB::get_update_ops`. - `zcash_client_sqlite::NoteId` ### Changed - MSRV is now 1.47.0. - APIs now take `&BlockDB` and `&WalletDB
` arguments, instead of paths to the block cache and wallet databases. - The library no longer uses the `mainnet` feature flag to specify the network type. APIs now take a `P: zcash_primitives::consensus::Parameters` variable. ### Removed - `zcash_client_sqlite::address` module (moved to `zcash_client_backend`). ### Fixed - Shielded transactions created by the wallet that have no change output (fully spending their input notes) are now correctly detected as mined when scanning compact blocks. - Unshielding transactions created by the wallet (with a transparent recipient address) that have no change output no longer cause a panic. ## [0.2.1] - 2020-10-24 ### Fixed - `transact::create_to_address` now correctly reconstructs notes from the data DB after Canopy activation (zcash/librustzcash#311). This is critcal to correct operation of spends after Canopy. ## [0.2.0] - 2020-09-09 ### Changed - MSRV is now 1.44.1. - Bumped dependencies to `ff 0.8`, `group 0.8`, `jubjub 0.5.1`, `protobuf 2.15`, `rusqlite 0.24`, `zcash_primitives 0.4`, `zcash_client_backend 0.4`. ## [0.1.0] - 2020-08-24 Initial release.