agents: prepare the 0.6.5 change log (#1803)

Author: longquanzheng

agents/CHANGELOG.md

@@ -4,6 +4,19 @@ All twenty-six published Dex agents packages share this changelog and one versio
 release is tagged `agents/v<version>`. See [README.md](README.md#versions-and-compatibility)
 for the Dex SDK and framework versions each release supports.
 
+## 0.6.5 (2026-11-13)
+
+### Fixed
+
+- `dex-agents`: `ConnectorStepContext` now exposes `flow_started_at` and
+  `first_attempt_at` from the tool Step's context. A connector operation that
+  reads either one, such as a Gmail send, no longer fails inside an agent tool
+  Step.
+- `@superdurable/dex-agents`: `ConnectorStepContext` now exposes
+  `flowStartedAt` and `firstAttemptAt` from the tool Step's context. A
+  connector operation that reads either one, such as a Gmail send, no longer
+  fails inside an agent tool Step.
+
 ## 0.6.4 (2026-11-13)
 
 ### Added

changelog.d/agents-packages/connector-step-context-times-python-35d589.md

@@ -16,7 +16,7 @@ and upgrade steps.
 
 ## 0.6 {#v0-6}
 
-Released 2026-11-12 as [agents/v0.6.0](https://github.com/superdurable/dex/releases/tag/agents%2Fv0.6.0); 0.6.1 released 2026-11-12 as [agents/v0.6.1](https://github.com/superdurable/dex/releases/tag/agents%2Fv0.6.1); 0.6.2 released 2026-11-12 as [agents/v0.6.2](https://github.com/superdurable/dex/releases/tag/agents%2Fv0.6.2); 0.6.3 released 2026-11-13 as [agents/v0.6.3](https://github.com/superdurable/dex/releases/tag/agents%2Fv0.6.3); 0.6.4 released 2026-11-13 as [agents/v0.6.4](https://github.com/superdurable/dex/releases/tag/agents%2Fv0.6.4).
+Released 2026-11-12 as [agents/v0.6.0](https://github.com/superdurable/dex/releases/tag/agents%2Fv0.6.0); 0.6.1 released 2026-11-12 as [agents/v0.6.1](https://github.com/superdurable/dex/releases/tag/agents%2Fv0.6.1); 0.6.2 released 2026-11-12 as [agents/v0.6.2](https://github.com/superdurable/dex/releases/tag/agents%2Fv0.6.2); 0.6.3 released 2026-11-13 as [agents/v0.6.3](https://github.com/superdurable/dex/releases/tag/agents%2Fv0.6.3); 0.6.4 released 2026-11-13 as [agents/v0.6.4](https://github.com/superdurable/dex/releases/tag/agents%2Fv0.6.4); 0.6.5 released 2026-11-13 as [agents/v0.6.5](https://github.com/superdurable/dex/releases/tag/agents%2Fv0.6.5).
 
 ### Breaking