stepfunc · jadamcrain · Jul 20, 2026 · Jul 20, 2026
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,4 +1,9 @@
 
+### 1.7.0-RC3 ###
+* :star: Add unstable, non-spawning master and outstation task APIs behind the semver-exempt `unstable` feature, allowing applications to obtain runnable tasks/futures without the library calling `tokio::spawn` internally. See [#433](https://github.com/stepfunc/dnp3/pull/433).
+* :star: Add `EndpointList::into_connect_handler()` and `EndpointList::into_connect_handler_with_options()` to build a `ClientConnectionHandler` from an endpoint list, e.g. for use with `spawn_master_tcp_client_3`. See [#433](https://github.com/stepfunc/dnp3/pull/433).
+* :wrench: The no-spawn TCP outstation server APIs (`Server::add_outstation_no_spawn` and `Server::bind_no_spawn`) no longer attach a tracing span to the futures they return. This is intentional so that non-spawning callers retain full control over instrumentation. Rust callers that relied on the previous automatic `dnp3-outstation-tcp` / `tcp-server` spans should now wrap the returned future in their own span before spawning it. The prebuilt bindings (C/C++, .NET, Java) are unaffected. See [#433](https://github.com/stepfunc/dnp3/pull/433).
+
 ### 1.7.0-RC2 ###
 * :star: Add `Database::discard_unselected_events()` to drop undelivered events of selected classes on demand, e.g. from a disconnect handler. Returns per-class discard counts. Opt-in and lossy by design. See [#427](https://github.com/stepfunc/dnp3/issues/427).
 * :shield: Update `rustls-webpki` to 0.103.13 to resolve [RUSTSEC-2026-0098](https://rustsec.org/advisories/RUSTSEC-2026-0098) and [RUSTSEC-2026-0099](https://rustsec.org/advisories/RUSTSEC-2026-0099), both concerning incorrect acceptance of X.509 name constraints. Exposure is limited to TLS configurations using `CertificateMode::AuthorityBased`; `SelfSigned` mode bypasses the affected code path.

diff --git a/Cargo.lock b/Cargo.lock
diff --git a/conformance/pom.xml b/conformance/pom.xml
@@ -11,7 +11,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <scala.version>2.13.4</scala.version>
-        <dnp3.version>1.7.0-RC2</dnp3.version>
+        <dnp3.version>1.7.0-RC3</dnp3.version>
         <dnp4s.version>0.1.0-SNAPSHOT</dnp4s.version>
         <scala-maven-plugin.version>4.4.0</scala-maven-plugin.version>
     </properties>

diff --git a/dnp3/Cargo.toml b/dnp3/Cargo.toml
@@ -1,7 +1,7 @@
 
 [package]
 name = "dnp3"
-version = "1.7.0-RC2"
+version = "1.7.0-RC3"
 
 authors = ["Step Function I/O LLC <info@stepfunc.io>"]
 description = "Rust implementation of DNP3 (IEEE 1815) with idiomatic bindings for C, C++, .NET, and Java"

diff --git a/dnp3/codegen/pom.xml b/dnp3/codegen/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>dev.gridio.dnp3</groupId>
     <artifactId>dnp3-model</artifactId>
-    <version>1.7.0-RC2</version>
+    <version>1.7.0-RC3</version>
     <packaging>jar</packaging>
 
     <name>dnp3-rs model</name>

diff --git a/ffi/bindings/c/CMakeLists.txt b/ffi/bindings/c/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.12)
 
 project(dnp3_c LANGUAGES C CXX)
 
-set(DNP3_BACKUP_VERSION 1.7.0-RC2)
+set(DNP3_BACKUP_VERSION 1.7.0-RC3)
 
 # Determine the architecture
 if(WIN32 AND CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|amd64|AMD64" AND CMAKE_SIZEOF_VOID_P EQUAL 8)

diff --git a/ffi/bindings/dotnet/examples/master/Master.csproj b/ffi/bindings/dotnet/examples/master/Master.csproj
@@ -13,7 +13,7 @@
     </When>
     <Otherwise>
       <ItemGroup>
-        <PackageReference Include="dnp3" Version="1.7.0-RC2" />
+        <PackageReference Include="dnp3" Version="1.7.0-RC3" />
       </ItemGroup>
     </Otherwise>
   </Choose>

diff --git a/ffi/bindings/dotnet/examples/outstation/Outstation.csproj b/ffi/bindings/dotnet/examples/outstation/Outstation.csproj
@@ -13,7 +13,7 @@
     </When>
     <Otherwise>
       <ItemGroup>
-        <PackageReference Include="dnp3" Version="1.7.0-RC2" />
+        <PackageReference Include="dnp3" Version="1.7.0-RC3" />
       </ItemGroup>
     </Otherwise>
   </Choose>

diff --git a/ffi/bindings/java/examples/pom.xml b/ffi/bindings/java/examples/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>io.stepfunc.dnp3</groupId>
     <artifactId>examples</artifactId>
-    <version>1.7.0-RC2</version>
+    <version>1.7.0-RC3</version>
 
     <properties>
         <maven.compiler.source>1.8</maven.compiler.source>
@@ -16,7 +16,7 @@
         <dependency>
             <groupId>io.stepfunc</groupId>
             <artifactId>dnp3</artifactId>
-            <version>1.7.0-RC2</version>
+            <version>1.7.0-RC3</version>
         </dependency>
     </dependencies>
 </project>
diff --git a/ffi/bindings/java/pom.xml b/ffi/bindings/java/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>io.stepfunc</groupId>
     <artifactId>dnp3-parent</artifactId>
-    <version>1.7.0-RC2</version>
+    <version>1.7.0-RC3</version>
     <packaging>pom</packaging>
 
     <properties>

diff --git a/ffi/dnp3-bindings/Cargo.toml b/ffi/dnp3-bindings/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "dnp3-bindings"
-version = "1.7.0-RC2"
+version = "1.7.0-RC3"
 
 # inherit from workspace
 rust-version.workspace = true

diff --git a/ffi/dnp3-ffi-java/Cargo.toml b/ffi/dnp3-ffi-java/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "dnp3-ffi-java"
-version = "1.7.0-RC2"
+version = "1.7.0-RC3"
 build = "build.rs"
 
 # inherit from workspace

diff --git a/ffi/dnp3-ffi/Cargo.toml b/ffi/dnp3-ffi/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "dnp3-ffi"
-version = "1.7.0-RC2"
+version = "1.7.0-RC3"
 
 # inherit from workspace
 rust-version.workspace = true

diff --git a/ffi/dnp3-schema/Cargo.toml b/ffi/dnp3-schema/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "dnp3-schema"
 # this version is what gets applied to the FFI libraries
-version = "1.7.0-RC2"
+version = "1.7.0-RC3"
 
 # inherit from workspace
 rust-version.workspace = true

diff --git a/guide/sitedata.json b/guide/sitedata.json
@@ -1,4 +1,4 @@
 {
-    "version": "1.7.0-RC2",
+    "version": "1.7.0-RC3",
     "github_url": "https://github.com/stepfunc/dnp3"
 }