diff --git a/CHANGELOG.md b/CHANGELOG.md
index 00abd8f84..eeb892998 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -257,6 +257,12 @@ The format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
   forward-compatibility.  Added BDD coverage for the stored-JSON path,
   corrupt-JSON fallback, resource-passing, and stub extra-kwargs scenarios. (#828)
 
+- **Plan Rollback Command** (#8557): Implemented `agents plan rollback <plan-id> <checkpoint-id>`
+  command for checkpoint-based plan state restoration. Restores a plan to a previous checkpoint
+  state, discarding decisions made after the checkpoint. Supports `--yes/-y` flag to skip
+  confirmation prompts and `--to-checkpoint` as a named option alternative. Includes
+  comprehensive BDD test coverage (>= 97%) and spec-aligned output formatting with rollback
+  summary, changes reverted, impact analysis, and post-rollback state panels.
 
 - **TDD Issue-Capture Test Activation** (#7025): Replaced 234 bare `@skip` tags
   across 82 Behave feature files with the correct `@tdd_expected_fail @tdd_issue