diff --git a/CHANGELOG.md b/CHANGELOG.md
index b7c75a3..cb55baf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,21 @@ Tags follow `v{opencode_version}[letter]` — bare tag for the first build on a
 
 ---
 
-## Unreleased
+## v2.1.1 — 2026-06-14
+
+Image-semver **patch**: bumps opencode and lands the `mempalace-toolkit`
+SHA-resolution CI fix plus two doc corrections that accumulated on `main` since
+`v2.1.0`. The toolkit change folds a live SHA into the base-tag hash, so this
+release carries a full base rebuild and a `base-latest` re-promote.
+
+### Bumped: opencode-ai 1.17.5 → 1.17.6
+
+`OPENCODE_VERSION` ARG in `Dockerfile.variant`. Upstream `1.17.6` (published
+2026-06-13) is a single Core bugfix — *"Improved MCP server compatibility by
+declaring OpenCode's supported client capabilities"* — with no breaking,
+runtime-dependency, bundled-Bun, or CPU/AVX changes. Pure version bump on the
+devbox side. Full notes:
+<https://github.com/anomalyco/opencode/releases/tag/v1.17.6>.
 
 ### Changed
 
diff --git a/Dockerfile.variant b/Dockerfile.variant
index faf8393..3683f85 100644
--- a/Dockerfile.variant
+++ b/Dockerfile.variant
@@ -39,7 +39,7 @@ ARG USER_NAME=developer
 # edit, so the cache-hit class of bug that bit pi-devbox v0.74.0..
 # v0.75.5 cannot apply here.
 ARG INSTALL_OPENCODE=true
-ARG OPENCODE_VERSION=1.17.5
+ARG OPENCODE_VERSION=1.17.6
 RUN if [ "${INSTALL_OPENCODE}" = "true" ]; then \
       NPM_CONFIG_PREFIX=/usr npm install -g opencode-ai@${OPENCODE_VERSION} && \
       opencode --version ; \