Add details of unreleased changes to changelogs

zcash_client_backend/CHANGELOG.md

@@ -6,7 +6,37 @@ and this library adheres to Rust's notion of
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
-TBD
+### Added
+- `zcash_client_backend::address::RecipientAddress`
+- `zcash_client_backend::data_api` module, containing the Data Access API.
+- `zcash_client_backend::wallet`:
+  - `AccountId`
+  - `SpendableNote`
+  - `OvkPolicy`
+- First alpha of TZE support, behind the `zfuture` feature flag.
+
+### Changed
+- `epk` fields and return values were changed from a `jubjub::SubgroupPoint` to
+  a `jubjub::ExtendedPoint`, to match the change to the `zcash_primitives`
+  decryption APIs:
+  - `zcash_client_backend::proto::compact_formats::CompactOutput::epk()`
+  - The `epk` field of `zcash_client_backend::wallet::WalletShieldedOutput`.
+- `zcash_client_backend::decrypt::decrypt_transaction` now takes a variable with
+  type `P: zcash_primitives::consensus::Parameters`.
+- `zcash_client_backend::wallet`:
+  - The `nf` property of `WalletShieldedSpend` now has the type `Nullifier`.
+  - The `account` property of `WalletShieldedSpend` and `WalletShieldedOutput`
+    now has the type `AccountId`.
+- `zcash_client_backend::welding_rig`:
+  - `scan_block` now takes `&[(AccountId, IncomingViewingKey)]`, instead of a
+    slice of extended full viewing keys with implicit account IDs.
+  - The `nullifiers` argument to `scan_block` now has the type
+    `&[(AccountId, Nullifier)]`.
+
+### Removed
+- `zcash_client_backend::constants` module (its sub-modules have been moved into
+  `zcash_primitives::constants`, and more generally replaced by the new methods
+  on the `zcash_primitives::consensus::Parameters` trait).
 
 ## [0.4.0] - 2020-09-09
 ### Changed

zcash_client_sqlite/CHANGELOG.md

@@ -6,7 +6,27 @@ and this library adheres to Rust's notion of
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
-TBD
+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
+- APIs now take `&BlockDB` and `&WalletDB<P>` 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`).
 
 ## [0.2.1] - 2020-10-24
 ### Fixed

zcash_primitives/CHANGELOG.md

@@ -6,7 +6,100 @@ and this library adheres to Rust's notion of
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
-TBD
+### Added
+- Support for implementing candidate ZIPs before they have been selected for a
+  network upgrade, behind the `zfuture` feature flag.
+  - At runtime, these ZIPs are gated behind the new `NetworkUpgrade::ZFuture`
+    enum case, which is inaccessible without the `zfuture` feature flag. This
+    pseudo-NU can be enabled for private testing using a custom implementation
+    of the `Parameters` trait.
+- New structs and methods:
+  - `zcash_primitives::consensus`:
+    - `BlockHeight`
+    - New methods on the `Parameters` trait:
+      - `coin_type`
+      - `hrp_sapling_extended_spending_key`
+      - `hrp_sapling_extended_full_viewing_key`
+      - `hrp_sapling_payment_address`
+      - `b58_pubkey_address_prefix`
+      - `b58_script_address_prefix`
+    - The `Network` enum, which enables code to be generic over the network type
+      at runtime.
+  - `zcash_primitives::primitives::Nullifier` struct.
+  - `zcash_primitives::transaction`:
+    - `TxVersion` enum, representing the set of valid transaction format
+      versions.
+    - `SignableInput` enum, encapsulating per-input data used when
+      creating transaction signatures.
+- Test helpers, behind the `test-dependencies` feature flag:
+  - `zcash_primitives::prover::mock::MockTxProver`, for building transactions in
+    tests without creating proofs.
+  - `zcash_primitives::transaction::Builder::test_only_new_with_rng` constructor
+    which accepts a non-`CryptoRng` randomness source (for e.g. deterministic
+    tests).
+  - `proptest` APIs for generating arbitrary Zcash types.
+- New constants:
+  - `zcash_primitives::consensus`:
+    - `H0`, the height of the genesis block.
+    - `MAIN_NETWORK`
+    - `TEST_NETWORK`
+  - `zcash_primitives::constants::{mainnet, testnet, regtest}` modules,
+    containing network-specific constants.
+  - `zcash_primitives::note_encryption`:
+    - `ENC_CIPHERTEXT_SIZE`
+    - `OUT_CIPHERTEXT_SIZE`
+  - `zcash_primitives::transaction::components::amount`:
+    - `COIN`
+    - `MAX_MONEY`
+- More implementations of standard traits:
+  - `zcash_primitives::consensus`:
+    - `Parameters: Clone`
+    - `MainNetwork: PartialEq`
+    - `TestNetwork: PartialEq`
+  - `zcash_primitives::legacy`:
+    - `Script: PartialEq`
+    - `TransparentAddress: Clone + PartialOrd + Hash`
+  - `zcash_primitives::redjubjub::PublicKey: Clone`
+  - `zcash_primitives::transaction`:
+    - `Transaction: Clone`
+    - `TransactionData: Clone + Default`
+    - `components::Amount: Eq + PartialOrd + Ord`
+    - `components::TxIn: Clone + PartialEq`
+    - `components::TxOut: PartialEq`
+    - `components::SpendDescription: Clone`
+    - `components::OutputDescription: Clone`
+    - `components::SproutProof: Clone`
+    - `components::JSDescription: Clone`
+  - `zcash_primitives::zip32::DiversifierIndex: Default`
+
+### Changed
+- Trial decryption using the APIs in `zcash_primitives::note_encryption` is now
+  over 60% faster at detecting which notes are relevant.
+  - Part of this improvement was achieved by changing the APIs to take `epk` as
+    a `&jubjub::ExtendedPoint` instead of a `&SubgroupPoint`.
+- Various APIs now take the network parameters as an explicit variable instead
+  of a type parameter:
+  - `zcash_primitives::consensus::BranchId::for_height`
+  - The `zcash_primitives::note_encryption` APIs.
+  - `zcash_primitives::transaction::builder`:
+    - `SaplingOutput::new`
+    - `Builder::new`
+    - `Builder::new_with_rng`
+  - `Parameters::activation_height` and `Parameters::is_nu_active` now take
+    `&self`.
+- `zcash_primitives::merkle_tree::CommitmentTree::new` has been renamed to
+  `CommitmentTree::empty`.
+- `zcash_primitives::primitives::Note::nf` now returns `Nullifier`.
+- `zcash_primitives::transaction`:
+  - The `overwintered`, `version`, and `version_group_id` properties of the
+    `Transaction` and `TransactionData` structs have been replaced by
+    `version: TxVersion`.
+  - `components::amount::DEFAULT_FEE` is now 1000 zatoshis, following
+    [ZIP 313](https://zips.z.cash/zip-0313).
+  - The `nullifier` property of `components::SpendDescription` now has the type
+    `Nullifier`.
+  - `signature_hash` and `signature_hash_data` now take a `SignableInput`
+    argument instead of a `transparent_input` argument.
 
 ## [0.4.0] - 2020-09-09
 ### Added

zcash_proofs/CHANGELOG.md

@@ -6,7 +6,26 @@ and this library adheres to Rust's notion of
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
-TBD
+### Added
+- `zcash_proofs::ZcashParameters`
+- `zcash_proofs::parse_parameters`
+- `zcash_proofs::prover::LocalProver::from_bytes`
+- The `zcash_proofs::constants` module, containing constants and helpers used by
+  the `zcash_proofs::circuit::ecc::fixed_base_multiplication` gadget:
+  - The `FixedGeneratorOwned` type alias.
+  - `generate_circuit_generator`
+  - The six Zcash fixed generators:
+    - `PROOF_GENERATION_KEY_GENERATOR`
+    - `NOTE_COMMITMENT_RANDOMNESS_GENERATOR`
+    - `NULLIFIER_POSITION_GENERATOR`
+    - `VALUE_COMMITMENT_VALUE_GENERATOR`
+    - `VALUE_COMMITMENT_RANDOMNESS_GENERATOR`
+    - `SPENDING_KEY_GENERATOR`
+- `zcash_proofs::sapling::SaplingProvingContext: Default`
+- `zcash_proofs::sapling::SaplingVerificationContext: Default`
+
+### Changed
+- `zcash_proofs::load_parameters` now returns `ZcashParameters`.
 
 ## [0.4.0] - 2020-09-09
 ### Changed