chore(release): Zebra v4.2.0

CHANGELOG.md

@@ -7,15 +7,46 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 
 ## [Unreleased]
 
-This release adds the `gettxout` RPC method.
+## [Zebra 4.2.0](https://github.com/ZcashFoundation/zebra/releases/tag/v4.2.0) - 2026-03-12
+
+This release expands Zebra’s RPC functionality, improves mempool policy,
+adds more state querying capabilities, and replaces the legacy OpenAPI
+documentation with OpenRPC.
 
 ### Added
 
-- Added `UnspentOutput` to mempool component service ([#10235](https://github.com/ZcashFoundation/zebra/pull/10235))
+- `UnspentOutput` request to mempool component service ([#10235](https://github.com/ZcashFoundation/zebra/pull/10235))
+- Founders reward addresses ([#10188](https://github.com/ZcashFoundation/zebra/pull/10188))
+- Support for pre-Canopy block subsidies ([#10191](https://github.com/ZcashFoundation/zebra/pull/10191))
+- AI contribution policy and agent guidance files ([#10318](https://github.com/ZcashFoundation/zebra/pull/10318))
+- `rpc.discover` endpoint ([#10201](https://github.com/ZcashFoundation/zebra/pull/10201))
+- `gettxout` RPC method ([#10235](https://github.com/ZcashFoundation/zebra/pull/10235))
+- `AnyChainBlock` state request for querying blocks in side chains ([#10325](https://github.com/ZcashFoundation/zebra/pull/10325))
+- Remaining non-standard mempool transaction filters ([#10314](https://github.com/ZcashFoundation/zebra/pull/10314))
 
 ### Removed
 
-- Removed the Python QA RPC test framework (`zebra-rpc/qa/`) in favour of the new [integration-tests](https://github.com/zcash/integration-tests) project, which captures all previous work in [zcash/integration-tests#1](https://github.com/zcash/integration-tests/pull/1) ([#10363](https://github.com/ZcashFoundation/zebra/pull/10363))
+- Python QA RPC test framework (`zebra-rpc/qa/`) in favour of the new [integration-tests](https://github.com/zcash/integration-tests) project, which captures all previous work in [zcash/integration-tests#1](https://github.com/zcash/integration-tests/pull/1) ([#10363](https://github.com/ZcashFoundation/zebra/pull/10363))
+- OpenAPI specification and related functionality ([#10298](https://github.com/ZcashFoundation/zebra/pull/10298)) in favour of [OpenRPC](https://github.com/ZcashFoundation/zebra/pull/10201)
+
+### Changed
+
+- Simplify `ReadStateService::call()` method ([#10335](https://github.com/ZcashFoundation/zebra/pull/10335))
+- Replace `NETWORK_UPGRADES_IN_ORDER` with `strum::EnumIter` ([#10096](https://github.com/ZcashFoundation/zebra/pull/10096))
+
+### Fixed
+
+- Preserve input order in `spent_outputs` for mixed chain/mempool transactions ([#10356](https://github.com/ZcashFoundation/zebra/pull/10356))
+- Clarify `TransparentInputNotFound` error message ([#10302](https://github.com/ZcashFoundation/zebra/pull/10302))
+- Improve `getrawtransaction` compatibility with `zcashd` ([#10307](https://github.com/ZcashFoundation/zebra/pull/10307))
+- Peerset banned cancel handles ([#10258](https://github.com/ZcashFoundation/zebra/pull/10258))
+- Support writing non-finalized state backups to disk before broadcasting updated chainstate ([#10361](https://github.com/ZcashFoundation/zebra/pull/10361))
+- Fix bug in `ActiveConnectionCounter` and inaccurate connection count metrics ([#10311](https://github.com/ZcashFoundation/zebra/pull/10311))
+
+### Contributors
+
+Thank you to everyone who contributed to this release, we couldn't make Zebra without you:
+@VolodymyrBg, @arya2, @conradoplg, @gustavovalverde, @mpguerra, @oxarbitrage, @syszery, @upbqdn and @zmanian
 
 ## [Zebra 4.1.0](https://github.com/ZcashFoundation/zebra/releases/tag/v4.1.0) - 2026-02-05
 

Cargo.lock

@@ -7253,7 +7253,7 @@ dependencies = [
 
 [[package]]
 name = "zebra-chain"
-version = "5.0.0"
+version = "6.0.0"
 dependencies = [
  "bech32",
  "bitflags 2.11.0",
@@ -7323,7 +7323,7 @@ dependencies = [
 
 [[package]]
 name = "zebra-consensus"
-version = "4.0.0"
+version = "5.0.0"
 dependencies = [
  "bellman",
  "blake2b_simd",
@@ -7370,7 +7370,7 @@ dependencies = [
 
 [[package]]
 name = "zebra-network"
-version = "4.0.0"
+version = "5.0.0"
 dependencies = [
  "bitflags 2.11.0",
  "byteorder",
@@ -7412,7 +7412,7 @@ dependencies = [
 
 [[package]]
 name = "zebra-node-services"
-version = "3.0.0"
+version = "4.0.0"
 dependencies = [
  "color-eyre",
  "jsonrpsee-types",
@@ -7426,7 +7426,7 @@ dependencies = [
 
 [[package]]
 name = "zebra-rpc"
-version = "5.0.0"
+version = "6.0.0"
 dependencies = [
  "base64 0.22.1",
  "chrono",
@@ -7482,7 +7482,7 @@ dependencies = [
 
 [[package]]
 name = "zebra-script"
-version = "4.0.0"
+version = "5.0.0"
 dependencies = [
  "hex",
  "lazy_static",
@@ -7496,7 +7496,7 @@ dependencies = [
 
 [[package]]
 name = "zebra-state"
-version = "4.0.0"
+version = "5.0.0"
 dependencies = [
  "bincode",
  "chrono",
@@ -7545,7 +7545,7 @@ dependencies = [
 
 [[package]]
 name = "zebra-test"
-version = "2.0.1"
+version = "3.0.0"
 dependencies = [
  "color-eyre",
  "futures",
@@ -7572,7 +7572,7 @@ dependencies = [
 
 [[package]]
 name = "zebra-utils"
-version = "4.0.0"
+version = "5.0.0"
 dependencies = [
  "color-eyre",
  "hex",
@@ -7594,7 +7594,7 @@ dependencies = [
 
 [[package]]
 name = "zebrad"
-version = "4.1.0"
+version = "4.2.0"
 dependencies = [
  "abscissa_core",
  "atty",

tower-batch-control/Cargo.toml

@@ -43,7 +43,7 @@ tokio-test = { workspace = true }
 tower-fallback = { path = "../tower-fallback/", version = "0.2.41" }
 tower-test = { workspace = true }
 
-zebra-test = { path = "../zebra-test/", version = "2.0.1" }
+zebra-test = { path = "../zebra-test/", version = "3.0.0" }
 
 [lints]
 workspace = true

tower-fallback/Cargo.toml

@@ -25,7 +25,7 @@ tracing = { workspace = true }
 [dev-dependencies]
 tokio = { workspace = true, features = ["full", "tracing", "test-util"] }
 
-zebra-test = { path = "../zebra-test/", version = "2.0.1" }
+zebra-test = { path = "../zebra-test/", version = "3.0.0" }
 
 [lints]
 workspace = true

zebra-chain/CHANGELOG.md

@@ -7,25 +7,34 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-### Added
+## [6.0.0] - 2026-03-12
 
-- `amount::Amount::is_zero`
-- `parameters::network::subsidy::constants` module.
-- `impl From<block::Height> for u64`
-- `impl From<block::Height> for u32`
-- `parameters::network::testnet::founder_address_list`
-- `parameters::network::subsidy::founders_reward`
-- `parameters::network::subsidy::founders_reward_address`
-- `diagnostics::CodeTimer::{start_desc, finish_desc, finish_inner}`
+### Breaking Changes
 
-### Changed
+- Removed `zebra_chain::diagnostic::CodeTimer::finish` — replaced by `finish_desc` and `finish_inner`
+- Removed `SubsidyError::SumOverflow` variant — replaced by `SubsidyError::Overflow` and `SubsidyError::Underflow`
+- Removed `zebra_chain::parameters::subsidy::num_halvings` — replaced by `halving`
+- Removed `VerifiedUnminedTx::sigops` field — replaced by `legacy_sigop_count`
+- Removed `transparent::Output::new_coinbase` — replaced by `Output::new`
+- Changed `block_subsidy` parameter renamed from `network` to `net` (no behavioral change)
+- Changed `VerifiedUnminedTx::new` — added required `spent_outputs: Arc<Vec<Output>>` parameter
+
+### Added
 
-- `parameters::network::subsidy::SubsidyError::` has new variants:
-  `FoundersRewardNotFound` and `Underflow`, and the variant `SumOverflow` was
-  renamed to `Overflow`.
-- `parameters::network::subsidy::num_halvings` was renamed to `halving`.
-- `transparent::Output::new_coinbase` was renamed to `new`.
-- `NoteCommitmentSubtreeIndex` now derives `schemars::JsonSchema` (#10201)
+- Added `Amount::is_zero(&self) -> bool`
+- Added `From<Height> for u32` and `From<Height> for u64` conversions
+- Added `CodeTimer::start_desc(description: &'static str) -> Self`
+- Added `CodeTimer::finish_desc(self, description: &'static str)`
+- Added `CodeTimer::finish_inner` with optional file/line and description
+- Added `SubsidyError::FoundersRewardNotFound`, `SubsidyError::Overflow`, `SubsidyError::Underflow` variants
+- Added `founders_reward(net, height) -> Amount` — returns the founders reward amount for a given height
+- Added `founders_reward_address(net, height) -> Option<Address>` — returns the founders reward address for a given height
+- Added `halving(height, network) -> u32` — replaces removed `num_halvings`
+- Added `Network::founder_address_list(&self) -> &[&str]`
+- Added `NetworkUpgradeIter` struct
+- Added `VerifiedUnminedTx::legacy_sigop_count: u32` field
+- Added `VerifiedUnminedTx::spent_outputs: Arc<Vec<Output>>` field
+- Added `transparent::Output::new(amount, lock_script) -> Output` — replaces removed `new_coinbase`
 
 ## [5.0.0] - 2026-02-05
 

zebra-chain/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "zebra-chain"
-version = "5.0.0"
+version = "6.0.0"
 authors.workspace = true
 description = "Core Zcash data structures"
 license.workspace = true
@@ -135,7 +135,7 @@ proptest-derive = { workspace = true, optional = true }
 rand = { workspace = true, optional = true }
 rand_chacha = { workspace = true, optional = true }
 
-zebra-test = { path = "../zebra-test/", version = "2.0.1", optional = true }
+zebra-test = { path = "../zebra-test/", version = "3.0.0", optional = true }
 bounded-vec = { version = "0.9.0", features = ["serde"] }
 
 [dev-dependencies]
@@ -156,7 +156,7 @@ rand_chacha = { workspace = true }
 
 tokio = { workspace = true, features = ["full", "tracing", "test-util"] }
 
-zebra-test = { path = "../zebra-test/", version = "2.0.1" }
+zebra-test = { path = "../zebra-test/", version = "3.0.0" }
 
 [[bench]]
 name = "block"

zebra-consensus/CHANGELOG.md

@@ -5,7 +5,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## Unreleased
+## [Unreleased]
+
+## [5.0.0] - 2026-03-12
 
 ### Added
 

zebra-consensus/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "zebra-consensus"
-version = "4.0.0"
+version = "5.0.0"
 authors.workspace = true
 description = "Implementation of Zcash consensus checks"
 license.workspace = true
@@ -62,10 +62,10 @@ zcash_proofs = { workspace = true, features = ["multicore", "bundled-prover"] }
 tower-fallback = { path = "../tower-fallback/", version = "0.2.41" }
 tower-batch-control = { path = "../tower-batch-control/", version = "1.0.1" }
 
-zebra-script = { path = "../zebra-script", version = "4.0.0" }
-zebra-state = { path = "../zebra-state", version = "4.0.0" }
-zebra-node-services = { path = "../zebra-node-services", version = "3.0.0" }
-zebra-chain = { path = "../zebra-chain", version = "5.0.0" }
+zebra-script = { path = "../zebra-script", version = "5.0.0" }
+zebra-state = { path = "../zebra-state", version = "5.0.0" }
+zebra-node-services = { path = "../zebra-node-services", version = "4.0.0" }
+zebra-chain = { path = "../zebra-chain", version = "6.0.0" }
 
 zcash_protocol.workspace = true
 
@@ -89,9 +89,9 @@ tokio = { workspace = true, features = ["full", "tracing", "test-util"] }
 tracing-error = { workspace = true }
 tracing-subscriber = { workspace = true }
 
-zebra-state = { path = "../zebra-state", version = "4.0.0", features = ["proptest-impl"] }
-zebra-chain = { path = "../zebra-chain", version = "5.0.0", features = ["proptest-impl"] }
-zebra-test = { path = "../zebra-test/", version = "2.0.1" }
+zebra-state = { path = "../zebra-state", version = "5.0.0", features = ["proptest-impl"] }
+zebra-chain = { path = "../zebra-chain", version = "6.0.0", features = ["proptest-impl"] }
+zebra-test = { path = "../zebra-test/", version = "3.0.0" }
 
 [lints]
 workspace = true

zebra-network/CHANGELOG.md

@@ -7,9 +7,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-### Changed
+## [5.0.0] - 2026-03-12
 
-- `PeerSocketAddr` now derives `schemars::JsonSchema` (#10201)
+### Breaking Changes
+
+- `zebra-chain` dependency bumped to `6.0.0`.
+
+### Added
+
+- `PeerSocketAddr` now derives `schemars::JsonSchema`
 
 ## [4.0.0] - 2026-02-05
 

zebra-network/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "zebra-network"
-version = "4.0.0"
+version = "5.0.0"
 authors = ["Zcash Foundation <zebra@zfnd.org>", "Tower Maintainers <team@tower-rs.com>"]
 description = "Networking code for Zebra"
 # # Legal
@@ -85,7 +85,7 @@ howudoin = { workspace = true, optional = true }
 proptest = { workspace = true, optional = true }
 proptest-derive = { workspace = true, optional = true }
 
-zebra-chain = { path = "../zebra-chain", version = "5.0.0", features = ["async-error"] }
+zebra-chain = { path = "../zebra-chain", version = "6.0.0", features = ["async-error"] }
 
 [dev-dependencies]
 proptest = { workspace = true }

zebra-node-services/CHANGELOG.md

@@ -7,9 +7,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [4.0.0] - 2026-03-12
+
+### Breaking Changes
+
+- `zebra-chain` dependency bumped to `6.0.0`.
+
 ### Added
 
-- Added `Request::UnspentOutput`, and `Response::TransparentOutput` and `CreatedOrSpent` to the mempool service ([#10235](https://github.com/ZcashFoundation/zebra/pull/10235)).
+- Added `Request::UnspentOutput`, `Response::TransparentOutput` and `CreatedOrSpent` to the mempool service.
 
 ## [3.0.0] - 2026-02-05
 

zebra-node-services/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "zebra-node-services"
-version = "3.0.0"
+version = "4.0.0"
 authors.workspace = true
 description = "The interfaces of some Zebra node services"
 license.workspace = true
@@ -31,7 +31,7 @@ rpc-client = [
 ]
 
 [dependencies]
-zebra-chain = { path = "../zebra-chain" , version = "5.0.0" }
+zebra-chain = { path = "../zebra-chain" , version = "6.0.0" }
 tower = { workspace = true }
 
 # Optional dependencies

zebra-rpc/CHANGELOG.md

@@ -7,13 +7,24 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [6.0.0] - 2026-03-12
+
+### Breaking Changes
+
+- `zebra-chain` bumped to `6.0.0`
+- `zebra-script` bumped to `5.0.0`
+- `zebra-state` bumped to `5.0.0`
+- `zebra-node-services` bumped to `4.0.0`
+- `zebra-consensus` bumped to `5.0.0`
+- `zebra-network` bumped to `5.0.0`
+
 ### Removed
 
 - Python QA RPC test framework folder.
 
 ### Added
 
-- Added `get_tx_out` method and `OutputObject` response. ([#10235](https://github.com/ZcashFoundation/zebra/pull/10235))
+- Added `get_tx_out` method and `OutputObject` response.
 - OpenRPC support (#10201):
   - `openrpsee` dependency
   - Added `build_rpc_schema()` to generate a map of the node's supported RPC interface at build time
@@ -23,7 +34,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - `GetBlockTemplateRequestMode`, `GetBlockTemplateCapability`, `GetBlockTemplateParameters`, `LongPollId`,
   `SubmitBlockParameters`, `GetAddressBalanceRequest`, `DGetAddressBalanceRequest`, `GetAddressUtxosRequest`,
-  `DGetAddressUtxosRequest`, `DGetAddressTxIdsRequest` and `AddNodeCommand` now derives `schemars::JsonSchema` (#10201)
+  `DGetAddressUtxosRequest`, `DGetAddressTxIdsRequest` and `AddNodeCommand` now derives `schemars::JsonSchema`
 
 ## [5.0.0] - 2026-02-05