diff --git a/CHANGELOG.md b/CHANGELOG.md
index e22e075..022f074 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,43 @@ All notable changes to Plainweave are documented here. The format follows
 [Keep a Changelog](https://keepachangelog.com/), and Plainweave adheres to
 [Semantic Versioning](https://semver.org/).
 
+## [1.1.0] — 2026-06-26
+
+Operator-facing web UX and SEI conformance. Additive and backward-compatible:
+the 1.0 CLI, MCP surface, store schema, and JSON envelopes are unchanged. The
+web UI is an optional `plainweave[web]` extra; it stays advisory and verdict-free
+like the rest of the surface.
+
+### Added
+- **Operator web UI** (`plainweave web`, optional `plainweave[web]` extra) — a
+  read-and-author mirror of the intent graph for non-CLI operators:
+  - **Intent dashboard** — coverage, orphans, and an in-band no-silent-clean
+    banner when the denominator is degraded or language-partial.
+  - **Corpus browse** — search / status / orphan filters with inline per-row
+    target expansion.
+  - **Requirement detail & authoring** — current-vs-draft side-by-side; create /
+    edit with conflict-preserves-text UX; two-step draft approval with
+    out-of-band status/badge/empty-state results.
+  - **Goals** — goals list, goal creation, and laddering requirements to goals.
+  - **Review queue** — unified drafts + proposed trace links; accept / reject
+    with a required-reason two-step, plus an extra confirm step for accepting
+    drifted links.
+- **SEI conformance** — Plainweave becomes the 4th SEI conformer; producer freeze
+  (wire golden) for the Legis preflight-facts envelope.
+
+### Security & hardening
+- **CSRF protection** — middleware that mints a token before `call_next`,
+  embeds it via `request.state`, and preserves the request body for downstream
+  handlers; cold-start 403 fixed.
+- **Input hygiene** — input-validation 400s, authority/operator-actor
+  attribution, and output hygiene on the web surface.
+- **Accessibility** — structural accessibility contracts in the test suite and a
+  recorded manual AT gate.
+
+### Documentation
+- README installation + coverage north-star note; CONTRIBUTING, changelog URL;
+  web UI quickstart; webUX MVP design spec and implementation plan.
+
 ## [1.0.0] — 2026-06-25
 
 First stable release. The code-up intent graph and its read/write surface are
@@ -37,4 +74,5 @@ coverage *completeness* remains a documented roadmap item, not a 1.0 gate.)
 - Zero Plainweave-minted SEIs; sibling SEIs consumed opaquely.
 - No silent-clean — a degraded or language-partial denominator is flagged in-band.
 
+[1.1.0]: https://github.com/foundryside-dev/plainweave/releases/tag/v1.1.0
 [1.0.0]: https://github.com/foundryside-dev/plainweave/releases/tag/v1.0.0
diff --git a/src/plainweave/_version.py b/src/plainweave/_version.py
index 5becc17..6849410 100644
--- a/src/plainweave/_version.py
+++ b/src/plainweave/_version.py
@@ -1 +1 @@
-__version__ = "1.0.0"
+__version__ = "1.1.0"