chore(release): finalize changelogs and end-of-support height for v6.1.0 (#11000)

* chore(release): finalize changelogs and end-of-support height for v6.1.0

* docs(changelog): tower-fallback 0.2.43 — the FallbackPolicy change is additive

The new type parameter defaults to OnError, so Fallback<S1, S2> and
Fallback::new are unchanged; cargo-semver-checks confirms it is not a
breaking change.

Author: upbqdn

CHANGELOG.md

@@ -5,7 +5,14 @@ All notable changes to Zebra are 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).
 
-## [Unreleased]
+## [Zebra 6.1.0](https://github.com/ZcashFoundation/zebra/releases/tag/v6.1.0) - 2026-07-17
+
+### Added
+
+- Added the `getstandardfee` RPC, a parameterless method returning the
+  recommended standard fee per logical action (the ZIP-317 marginal fee, 5000
+  zatoshis) with a `version` field for future dynamic fee estimation
+  ([#10717](https://github.com/ZcashFoundation/zebra/pull/10717)).
 
 ### Security
 
@@ -73,10 +80,6 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 
 ### Added
 
-- Added the `getstandardfee` RPC, a parameterless method returning the
-  recommended standard fee per logical action (the ZIP-317 marginal fee, 5000
-  zatoshis) with a `version` field for future dynamic fee estimation
-  ([#10717](https://github.com/ZcashFoundation/zebra/pull/10717))
 - Support for the NU6.3 "Ironwood" shielded pool and v6 transaction format,
   activating on Testnet at height 4,134,000. The consensus parameters (v6 version
   group ID, consensus branch ID, and Testnet activation height) match

tower-fallback/CHANGELOG.md

@@ -5,12 +5,16 @@ 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]
+## [0.2.43] - 2026-07-17
 
 ### Added
 
-- Added `Fallback::new_with_policy()` for selecting fallback behavior based on
-  the first service's result.
+- `Fallback::new_with_policy`, which selects fallback behavior using a `FallbackPolicy`.
+- `FallbackPolicy` trait with an `OnError` implementation matching the default
+  fall-back-on-error behavior.
+- `Fallback` and `future::ResponseFuture` gained an optional fallback-policy type
+  parameter that defaults to `OnError`, so existing `Fallback<S1, S2>` uses and
+  `Fallback::new` are unchanged.
 
 ## [0.2.42] - 2026-07-10
 

zebra-chain/CHANGELOG.md

@@ -5,18 +5,19 @@ 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]
-
-### Security
-
-- Computing `transaction::Transaction::value_balance` no longer clones the entire UTXO map per
-  call (GHSA-4g24-549m-hp75).
+## [11.2.0] - 2026-07-17
 
 ### Added
 
 - `block::Header::{SERIALIZED_SIZE, REGTEST_SERIALIZED_SIZE, serialized_size}`
+- `transaction::zip317::MARGINAL_FEE`
 - `work::equihash::Solution::{SERIALIZED_SIZE, REGTEST_SERIALIZED_SIZE, serialized_size}`
 
+### Security
+
+- Computing `transaction::Transaction::value_balance` no longer clones the entire UTXO map per
+  call (GHSA-4g24-549m-hp75).
+
 ## [11.1.0] - 2026-07-10
 
 ### Added

zebra-rpc/CHANGELOG.md

@@ -5,7 +5,12 @@ 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]
+## [12.0.0] - 2026-07-17
+
+### Added
+
+- `methods::RpcServer::get_standard_fee`, the `getstandardfee` RPC returning the ZIP-317
+  marginal fee ([#10717](https://github.com/ZcashFoundation/zebra/pull/10717)).
 
 ### Fixed
 

zebra-state/CHANGELOG.md

@@ -5,7 +5,7 @@ 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]
+## [10.1.1] - 2026-07-17
 
 ### Security
 

zebrad/src/components/sync/end_of_support.rs

@@ -13,7 +13,7 @@ use zebra_chain::{
 use crate::application::release_version;
 
 /// The estimated height that this release will be published.
-pub const ESTIMATED_RELEASE_HEIGHT: u32 = 3_408_000;
+pub const ESTIMATED_RELEASE_HEIGHT: u32 = 3_417_000;
 
 /// The maximum number of days after `ESTIMATED_RELEASE_HEIGHT` where a Zebra server will run
 /// without halting.