diff --git a/Cargo.lock b/Cargo.lock
index 3a7967e1..4daf93d2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,7 +4,7 @@ version = 4
 
 [[package]]
 name = "agent-client-protocol"
-version = "3.4.0"
+version = "3.5.0"
 dependencies = [
  "agent-client-protocol-derive",
  "agent-client-protocol-schema",
@@ -32,7 +32,7 @@ dependencies = [
 
 [[package]]
 name = "agent-client-protocol-conductor"
-version = "3.4.0"
+version = "3.5.0"
 dependencies = [
  "agent-client-protocol",
  "agent-client-protocol-polyfill",
@@ -63,7 +63,7 @@ dependencies = [
 
 [[package]]
 name = "agent-client-protocol-cookbook"
-version = "3.4.0"
+version = "3.5.0"
 dependencies = [
  "agent-client-protocol",
  "agent-client-protocol-rmcp",
@@ -76,7 +76,7 @@ dependencies = [
 
 [[package]]
 name = "agent-client-protocol-derive"
-version = "3.4.0"
+version = "3.5.0"
 dependencies = [
  "quote",
  "syn 3.0.9",
@@ -84,7 +84,7 @@ dependencies = [
 
 [[package]]
 name = "agent-client-protocol-http"
-version = "3.4.0"
+version = "3.5.0"
 dependencies = [
  "agent-client-protocol",
  "async-stream",
@@ -109,7 +109,7 @@ dependencies = [
 
 [[package]]
 name = "agent-client-protocol-polyfill"
-version = "3.4.0"
+version = "3.5.0"
 dependencies = [
  "agent-client-protocol",
  "async-stream",
@@ -126,7 +126,7 @@ dependencies = [
 
 [[package]]
 name = "agent-client-protocol-rmcp"
-version = "4.0.4"
+version = "4.0.5"
 dependencies = [
  "agent-client-protocol",
  "futures",
@@ -177,7 +177,7 @@ dependencies = [
 
 [[package]]
 name = "agent-client-protocol-trace-viewer"
-version = "3.4.0"
+version = "3.5.0"
 dependencies = [
  "anyhow",
  "axum",
@@ -611,9 +611,9 @@ checksum = "fc652a48c352aef3ea3aed32080501cf3ef6ed5da78602a020c991775b0aff04"
 
 [[package]]
 name = "cc"
-version = "1.8.0"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6651c9ed80effdc7db0ff72512157f901af5e3549e341e24b1dd4887d836d838"
+checksum = "877bf67ac8e52449eb2f9e98a344ea163beb70dd1f9eebe3cc5357dcfeaee4df"
 dependencies = [
  "find-msvc-tools",
  "jobserver",
@@ -1054,9 +1054,9 @@ checksum = "da7c62ceae207dd37ea5b845da6a0696c799f85e97da1ab5b7910be3c1c80223"
 
 [[package]]
 name = "find-msvc-tools"
-version = "0.1.14"
+version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aedcfb3409746eddb02b9e19ebda1c3394f759a152e48ee875a0844d1b955484"
+checksum = "1c66915cc5391097de7a2b0b972e8505aa33c0df401fd3a6811dbdb32881ba48"
 
 [[package]]
 name = "fixedbitset"
@@ -1453,9 +1453,9 @@ dependencies = [
 
 [[package]]
 name = "icu_collections"
-version = "2.3.0"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa68d21081c4a05d5a901a1c62add574c77048b6a1c67be3b50ce0b60d4ca513"
+checksum = "fe090a42a0d3140fed8c63263ed1fecc02422cb2f4bfe55cd8de2de1b8e105dd"
 dependencies = [
  "displaydoc",
  "potential_utf",
@@ -1467,9 +1467,9 @@ dependencies = [
 
 [[package]]
 name = "icu_locale_core"
-version = "2.3.0"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d56e28588da92eee5c3201a6eff33fabdd49b62269c8938d4ff050ce4d900deb"
+checksum = "25d29b57c17c6528d0dc4c2141cfa2d08200465acb537a3909c8b9b8a4a984c0"
 dependencies = [
  "displaydoc",
  "litemap",
@@ -1480,9 +1480,9 @@ dependencies = [
 
 [[package]]
 name = "icu_normalizer"
-version = "2.3.0"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12f9cf5f235641ed274641dd81c3f28d870e276763d0797aeeab72317b1c646f"
+checksum = "404a3b8c486f205c87fe7f23ab6894d84a4ad76d6e4671ae1981ba7def87c599"
 dependencies = [
  "icu_collections",
  "icu_normalizer_data",
@@ -1494,15 +1494,15 @@ dependencies = [
 
 [[package]]
 name = "icu_normalizer_data"
-version = "2.3.0"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1563da1ed3e0b3bf3d74c9b85917ac9c56464d2f57242270c09c9e752f8021a0"
+checksum = "20f0088bfb7441f7a37fa0c9e20cb1e9cba1cac6b9ce8cd2a6dc44294f8e8cbc"
 
 [[package]]
 name = "icu_properties"
-version = "2.3.0"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e7ca276ad3145661a65914e6daf131ca5120cd3dcee8f8f3214b8875184a148"
+checksum = "2ea83d991c56158f7cf898bf86436c1dfe7c07ee82fe88951f2695c9f37a379f"
 dependencies = [
  "displaydoc",
  "icu_collections",
@@ -1515,15 +1515,15 @@ dependencies = [
 
 [[package]]
 name = "icu_properties_data"
-version = "2.3.0"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e590f038c1464a96894fd6d10127e90a8be4509f56ff7ecef851b15cee0b7caa"
+checksum = "b98f29af82d02b163fe50161388350e743bb3107cc8e8c2f7314cb505faddfcf"
 
 [[package]]
 name = "icu_provider"
-version = "2.3.1"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d27bbb9d3abbefac45d55f647c9de1d44aafcd1186eb91879afef17c396c3e73"
+checksum = "413099315636c588ee8f011190b329b971a09a8fae9d157e01dcae8379468514"
 dependencies = [
  "displaydoc",
  "icu_locale_core",
@@ -1753,9 +1753,9 @@ checksum = "20870f649af7073d53e38067b2a84312175d56ea15217e1b15bc83506ec50afb"
 
 [[package]]
 name = "libc"
-version = "0.2.190"
+version = "0.2.191"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce5d3ddc6d3fa000eb1536d85e147bfe31aacaba692ed6a876f95cb7c855be78"
+checksum = "65cd87c9a6d60536580b316ad985726104730a5151c99845f2490428ef91240a"
 
 [[package]]
 name = "linux-raw-sys"
@@ -1913,9 +1913,9 @@ checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"
 
 [[package]]
 name = "open"
-version = "5.4.4"
+version = "5.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa576c76302b7b808eecc68061e67336c47833ef9d22caa74dda10fa9675eebc"
+checksum = "8d8c8b8e725ad26404d6896eb2f064294a0a7b4f1d9120210d85544684c4ca95"
 dependencies = [
  "is-wsl",
  "libc",
@@ -2316,9 +2316,9 @@ dependencies = [
 
 [[package]]
 name = "rmcp"
-version = "3.5.1"
+version = "3.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab5023804cbe0304cbe06197ac16e645a0a0d0ffa2953bf735c15c2fa0213350"
+checksum = "ceb42e9e47443cd83a834dea57b5816d35481417bae72ade5dc5615c59122e26"
 dependencies = [
  "base64 0.23.1",
  "bytes",
@@ -2326,6 +2326,7 @@ dependencies = [
  "futures",
  "http",
  "indexmap 2.14.2",
+ "libc",
  "pastey",
  "pin-project-lite",
  "process-wrap",
@@ -2345,9 +2346,9 @@ dependencies = [
 
 [[package]]
 name = "rmcp-macros"
-version = "3.5.1"
+version = "3.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1da498700030856ba63114bceefa30ba21f5e278cb975e5b9de3529fe842b40"
+checksum = "2f55ef2d84752d676d735604548fcb65811504e23330d85670b0eff5f8735144"
 dependencies = [
  "darling",
  "proc-macro2",
@@ -2485,9 +2486,9 @@ dependencies = [
 
 [[package]]
 name = "schannel"
-version = "0.1.29"
+version = "0.1.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91c1b7e4904c873ef0710c1f407dde2e6287de2bebc1bbbf7d430bb7cbffd939"
+checksum = "9cb23c424d8ee841bb4d813677ca237e2a610067d594fec130f87d6093495ab5"
 dependencies = [
  "windows-sys 0.61.2",
 ]
@@ -2936,9 +2937,9 @@ dependencies = [
 
 [[package]]
 name = "tinystr"
-version = "0.8.4"
+version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1e27c91459209c2986af3dcf603a5a74a4368754ce37414f59acc971167f643"
+checksum = "abc840c238154d58f9e86b2792261edfde565a17696e1cda1a449de27979801a"
 dependencies = [
  "displaydoc",
  "zerovec",
@@ -2952,9 +2953,9 @@ checksum = "fd3ca314f692efd6c868f8408f53fe444634a845f96c028b97d35f6a1f79f0ee"
 
 [[package]]
 name = "tokio"
-version = "1.53.3"
+version = "1.54.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce3335fa71841cda333a58d7615b03901380ecf09d59b3296d21f8bbac0dde4e"
+checksum = "b52fd3255258d26fac7264ab5a76b53c13367136dc011d3d6ad4f8ed070396a3"
 dependencies = [
  "bytes",
  "libc",
@@ -3665,9 +3666,9 @@ dependencies = [
 
 [[package]]
 name = "yoke"
-version = "0.8.3"
+version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "709fe23a0424b6a435d82152b1bd3fdfb0833487d5fa90d05d42762a9891fef5"
+checksum = "417ef3fcf6c300b7dbd25c85531a746931c02ad536f3cf4786ed1e88223340b3"
 dependencies = [
  "stable_deref_trait",
  "yoke-derive",
@@ -3746,9 +3747,9 @@ dependencies = [
 
 [[package]]
 name = "zerovec"
-version = "0.11.8"
+version = "0.11.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb0464e17806c1d976d5cba29399c7f08e516e279e2ba493f63123b5fca67dd8"
+checksum = "f58a2799cfe9a1670c7ea8edbd52ef8edb93cb37a7f83bf31ba9e35d9dae6a40"
 dependencies = [
  "yoke",
  "zerofrom",
@@ -3757,9 +3758,9 @@ dependencies = [
 
 [[package]]
 name = "zerovec-derive"
-version = "0.11.6"
+version = "0.11.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34df6fc39dbd26ddc9c10e6a2984476e13acce22e64e4487636ef494369225da"
+checksum = "c3743ddbf47738d929cd1ae2e199d40d0162979dfe31aef8ae646d2bf00bf97a"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index 6246ed54..432f96a6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,12 +27,12 @@ repository = "https://github.com/agentclientprotocol/rust-sdk"
 
 [workspace.dependencies]
 # Internal crates
-agent-client-protocol = { path = "src/agent-client-protocol", version = "3.4.0" }
-agent-client-protocol-derive = { path = "src/agent-client-protocol-derive", version = "3.4.0" }
-agent-client-protocol-polyfill = { path = "src/agent-client-protocol-polyfill", version = "3.4.0" }
-agent-client-protocol-rmcp = { path = "src/agent-client-protocol-rmcp", version = "4.0.4" }
+agent-client-protocol = { path = "src/agent-client-protocol", version = "3.5.0" }
+agent-client-protocol-derive = { path = "src/agent-client-protocol-derive", version = "3.5.0" }
+agent-client-protocol-polyfill = { path = "src/agent-client-protocol-polyfill", version = "3.5.0" }
+agent-client-protocol-rmcp = { path = "src/agent-client-protocol-rmcp", version = "4.0.5" }
 agent-client-protocol-test = { path = "src/agent-client-protocol-test", default-features = false }
-agent-client-protocol-trace-viewer = { path = "src/agent-client-protocol-trace-viewer", version = "3.4.0" }
+agent-client-protocol-trace-viewer = { path = "src/agent-client-protocol-trace-viewer", version = "3.5.0" }
 yopo = { package = "agent-client-protocol-yopo", path = "src/yopo" }
 
 # Protocol
diff --git a/src/agent-client-protocol-conductor/Cargo.toml b/src/agent-client-protocol-conductor/Cargo.toml
index 1fa6b991..3a13de45 100644
--- a/src/agent-client-protocol-conductor/Cargo.toml
+++ b/src/agent-client-protocol-conductor/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "agent-client-protocol-conductor"
-version = "3.4.0"
+version = "3.5.0"
 edition.workspace = true
 rust-version.workspace = true
 authors.workspace = true
diff --git a/src/agent-client-protocol-cookbook/CHANGELOG.md b/src/agent-client-protocol-cookbook/CHANGELOG.md
index 0c1512b1..5b1c343c 100644
--- a/src/agent-client-protocol-cookbook/CHANGELOG.md
+++ b/src/agent-client-protocol-cookbook/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [3.5.0](https://github.com/agentclientprotocol/rust-sdk/compare/agent-client-protocol-cookbook-v3.4.0...agent-client-protocol-cookbook-v3.5.0) - 2026-10-22
+
+### Added
+
+- *(acp)* add ConnectionTo::terminated for every connection end ([#434](https://github.com/agentclientprotocol/rust-sdk/pull/434))
+
 ## [3.4.0](https://github.com/agentclientprotocol/rust-sdk/compare/agent-client-protocol-cookbook-v3.3.0...agent-client-protocol-cookbook-v3.4.0) - 2026-10-16
 
 ### Added
diff --git a/src/agent-client-protocol-cookbook/Cargo.toml b/src/agent-client-protocol-cookbook/Cargo.toml
index 3210debd..9afa0780 100644
--- a/src/agent-client-protocol-cookbook/Cargo.toml
+++ b/src/agent-client-protocol-cookbook/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "agent-client-protocol-cookbook"
-version = "3.4.0"
+version = "3.5.0"
 edition.workspace = true
 rust-version.workspace = true
 authors.workspace = true
diff --git a/src/agent-client-protocol-derive/Cargo.toml b/src/agent-client-protocol-derive/Cargo.toml
index 436221f2..e10d89c7 100644
--- a/src/agent-client-protocol-derive/Cargo.toml
+++ b/src/agent-client-protocol-derive/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "agent-client-protocol-derive"
-version = "3.4.0"
+version = "3.5.0"
 edition.workspace = true
 rust-version.workspace = true
 authors.workspace = true
diff --git a/src/agent-client-protocol-http/Cargo.toml b/src/agent-client-protocol-http/Cargo.toml
index 37ad0b6d..94e15b98 100644
--- a/src/agent-client-protocol-http/Cargo.toml
+++ b/src/agent-client-protocol-http/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "agent-client-protocol-http"
-version = "3.4.0"
+version = "3.5.0"
 edition.workspace = true
 rust-version.workspace = true
 authors.workspace = true
diff --git a/src/agent-client-protocol-polyfill/Cargo.toml b/src/agent-client-protocol-polyfill/Cargo.toml
index 9f9fb2ab..a01e1fc8 100644
--- a/src/agent-client-protocol-polyfill/Cargo.toml
+++ b/src/agent-client-protocol-polyfill/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "agent-client-protocol-polyfill"
-version = "3.4.0"
+version = "3.5.0"
 edition.workspace = true
 rust-version.workspace = true
 authors.workspace = true
diff --git a/src/agent-client-protocol-rmcp/CHANGELOG.md b/src/agent-client-protocol-rmcp/CHANGELOG.md
index 2db257e6..e8e426b6 100644
--- a/src/agent-client-protocol-rmcp/CHANGELOG.md
+++ b/src/agent-client-protocol-rmcp/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [4.0.5](https://github.com/agentclientprotocol/rust-sdk/compare/agent-client-protocol-rmcp-v4.0.4...agent-client-protocol-rmcp-v4.0.5) - 2026-10-22
+
+### Other
+
+- updated the following local packages: agent-client-protocol
+
 ## [4.0.4](https://github.com/agentclientprotocol/rust-sdk/compare/agent-client-protocol-rmcp-v4.0.3...agent-client-protocol-rmcp-v4.0.4) - 2026-10-16
 
 ### Other
diff --git a/src/agent-client-protocol-rmcp/Cargo.toml b/src/agent-client-protocol-rmcp/Cargo.toml
index 83e4849a..e7d74144 100644
--- a/src/agent-client-protocol-rmcp/Cargo.toml
+++ b/src/agent-client-protocol-rmcp/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "agent-client-protocol-rmcp"
-version = "4.0.4"
+version = "4.0.5"
 edition.workspace = true
 rust-version.workspace = true
 authors.workspace = true
diff --git a/src/agent-client-protocol-trace-viewer/Cargo.toml b/src/agent-client-protocol-trace-viewer/Cargo.toml
index 000225fc..a3b28d1f 100644
--- a/src/agent-client-protocol-trace-viewer/Cargo.toml
+++ b/src/agent-client-protocol-trace-viewer/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "agent-client-protocol-trace-viewer"
-version = "3.4.0"
+version = "3.5.0"
 edition.workspace = true
 rust-version.workspace = true
 authors.workspace = true
diff --git a/src/agent-client-protocol/CHANGELOG.md b/src/agent-client-protocol/CHANGELOG.md
index 5ac4fca9..a8de476f 100644
--- a/src/agent-client-protocol/CHANGELOG.md
+++ b/src/agent-client-protocol/CHANGELOG.md
@@ -2,6 +2,17 @@
 
 ## [Unreleased]
 
+## [3.5.0](https://github.com/agentclientprotocol/rust-sdk/compare/v3.4.0...v3.5.0) - 2026-10-22
+
+### Added
+
+- *(acp)* add send_initialize with typed lower-version outcome for v2 clients ([#435](https://github.com/agentclientprotocol/rust-sdk/pull/435))
+- *(acp)* add ConnectionTo::terminated for every connection end ([#434](https://github.com/agentclientprotocol/rust-sdk/pull/434))
+
+### Fixed
+
+- *(acp)* redact payload-bearing errors in warning logs ([#433](https://github.com/agentclientprotocol/rust-sdk/pull/433))
+
 ### Fixed
 
 - Redact error messages and data in ordinary protocol warning logs, including
diff --git a/src/agent-client-protocol/Cargo.toml b/src/agent-client-protocol/Cargo.toml
index e3209dc8..c914a41c 100644
--- a/src/agent-client-protocol/Cargo.toml
+++ b/src/agent-client-protocol/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "agent-client-protocol"
-version = "3.4.0"
+version = "3.5.0"
 edition.workspace = true
 rust-version.workspace = true
 authors.workspace = true