diff --git a/CHANGELOG.md b/CHANGELOG.md
index ef0c22f60..6c9387fae 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,49 +13,6 @@ The format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
   warning overlay before proceeding. Patterns cover destructive filesystem
   operations, privilege escalation, network exfiltration, and more. (#1003)
 
-### Changed
-
-- **A2A — JSON-RPC 2.0 wire format compliance** (**BREAKING**): `A2aRequest`
-  and `A2aResponse` Pydantic models have been rewritten to use standard
-  JSON-RPC 2.0 field names. Callers constructing `A2aRequest` or reading
-  `A2aResponse` must update field references:
-
-  | Old field | New field | Model |
-  |-----------|-----------|-------|
-  | `a2a_version` | `jsonrpc` (fixed `"2.0"`) | both |
-  | `request_id` | `id` | both |
-  | `operation` | `method` | `A2aRequest` |
-  | `status` + `data` | `result` (success) | `A2aResponse` |
-  | `error` | `error` (unchanged) | `A2aResponse` |
-  | `timing_ms` | *(removed)* | `A2aResponse` |
-  | `auth` | *(removed — use `params` or HTTP headers)* | `A2aRequest` |
-
-  A `_result_xor_error` model validator enforces JSON-RPC 2.0 mutual exclusion
-  of `result` and `error`. (#1501)
-
-- **CLI — Legacy/v3 plan workflow mixing disallowed**: `agents plan` commands
-  now detect and reject attempts to mix legacy plan commands with v3 plan
-  workflows in the same session, surfacing a clear error message with migration
-  guidance. (#1577)
-
-### Fixed
-
-- **CLI — `agents actor add` rich output**: The `actor add` command now renders
-  the full spec-required output including **Type**, **Config**, **Capabilities**,
-  and **Tools** panels, matching the output format of `actor show`.
-
-- **Infra — E2E suite database initialization**: The common E2E Robot Framework
-  suite setup now centrally initializes the database before any CLI commands
-  run, eliminating per-suite and per-test `agents init` workarounds. Suite home
-  directory names are sanitized to prevent path-derived initialization failures
-  in isolated Robot runs. (#1023)
-
-- **CI — Parallelized static analysis pipeline**: Lint, typecheck, security
-  scan, and code quality jobs now run in parallel in the CI pipeline, reducing
-  total pipeline time for static analysis stages.
-
-### Added
-
 - **TUI — First-run experience with actor selection overlay**: On first launch
   (no personas configured), a centred `ActorSelectionOverlay` widget guides the
   user to select an actor from a curated list (`anthropic/claude-4-sonnet`,
@@ -81,8 +38,61 @@ The format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
   the "persists across restarts" requirement. 47 new BDD scenarios cover typed
   triples, temporal queries, and provenance. (#891)
 
+### Changed
+
+- **A2A — JSON-RPC 2.0 wire format compliance** (**BREAKING**): `A2aRequest`
+  and `A2aResponse` Pydantic models have been rewritten to use standard
+  JSON-RPC 2.0 field names. Callers constructing `A2aRequest` or reading
+  `A2aResponse` must update field references:
+
+  | Old field | New field | Model |
+  |-----------|-----------|-------|
+  | `a2a_version` | `jsonrpc` (fixed `"2.0"`) | both |
+  | `request_id` | `id` | both |
+  | `operation` | `method` | `A2aRequest` |
+  | `status` + `data` | `result` (success) | `A2aResponse` |
+  | `error` | `error` (unchanged) | `A2aResponse` |
+  | `timing_ms` | *(removed)* | `A2aResponse` |
+  | `auth` | *(removed — use `params` or HTTP headers)* | `A2aRequest` |
+
+  A `_result_xor_error` model validator enforces JSON-RPC 2.0 mutual exclusion
+  of `result` and `error`. (#1501)
+
+- **CLI — Legacy/v3 plan workflow mixing disallowed**: `agents plan` commands
+  now detect and reject attempts to mix legacy plan commands with v3 plan
+  workflows in the same session, surfacing a clear error message with migration
+  guidance. (#1577)
+
+- **Domain — `DomainBaseModel` shared Pydantic base class**: A new
+  `DomainBaseModel` base class in `cleveragents.domain.models.base` centralises
+  the common Pydantic `model_config` (`str_strip_whitespace`, `validate_assignment`,
+  `arbitrary_types_allowed=False`, `populate_by_name`, `use_enum_values`)
+  previously duplicated across 14 domain model classes. This is a pure
+  structural refactor with no behavioral changes. (#1941)
+
 ### Fixed
 
+- **CLI — `agents actor add` rich output**: The `actor add` command now renders
+  the full spec-required output including **Type**, **Config**, **Capabilities**,
+  and **Tools** panels, matching the output format of `actor show`.
+
+- **Infra — E2E suite database initialization**: The common E2E Robot Framework
+  suite setup now centrally initializes the database before any CLI commands
+  run, eliminating per-suite and per-test `agents init` workarounds. Suite home
+  directory names are sanitized to prevent path-derived initialization failures
+  in isolated Robot runs. (#1023)
+
+- **CI — Parallelized static analysis pipeline**: Lint, typecheck, security
+  scan, and code quality jobs now run in parallel in the CI pipeline, reducing
+  total pipeline time for static analysis stages.
+
+- **Tests — TDD bug-capture for #989 (JSON decode crash in persistence)**:
+  Added Behave TDD regression scenario (`@tdd_bug @tdd_bug_989 @tdd_expected_fail`)
+  that persists corrupt automation-profile JSON and verifies
+  `AutomationProfileRepository` reads do not leak raw `JSONDecodeError`.
+  Also stabilized `robot/resource_dag.robot` integration fixture by sharing a
+  single SQLAlchemy session in inline scripts. (#1094)
+
 - `agents session list` rich output now includes a **Name** column and a **Summary** panel
   showing total sessions, most recent, oldest, total messages, and storage usage. JSON output
   also includes a `summary` section with the same statistics. (#1574, #1570)