diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@
 
 ## [Unreleased]
 
+## [0.2.2.3] - 2026-09-11
+
+### Changed
+
+- Require `tricorder-types ^>=0.3`.
+
 ## [0.2.2.2] - 2026-09-10
 
 ### Changed
diff --git a/tricorder.cabal b/tricorder.cabal
--- a/tricorder.cabal
+++ b/tricorder.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:            tricorder
-version:         0.2.2.2
+version:         0.2.2.3
 synopsis:        Continuous Haskell build status, diagnostics, and tests via a shared daemon
 description:     tricorder rebuilds your Haskell project continuously and surfaces build status, diagnostics, test results, and documentation - for developers and LLM coding agents. Like ghcid and ghciwatch it reloads on every change, but builds run in a background daemon so multiple clients (an interactive TUI, a status CLI, an agent skill) share a single build state without triggering redundant rebuilds. It discovers components across multi-package cabal.project workspaces automatically and ships context-friendly output for agentic use via the CLI.
 category:        Development
@@ -148,7 +148,7 @@
     , text ==2.1.*
     , time >=1.12 && <1.17
     , time-units ==1.0.*
-    , tricorder-types ==0.2.*
+    , tricorder-types ==0.3.*
     , vty >=6.5 && <6.7
     , vty-crossplatform ==0.5.*
     , yaml ==0.11.*
@@ -315,7 +315,7 @@
     , time >=1.12 && <1.17
     , time-units ==1.0.*
     , tricorder-internal
-    , tricorder-types ==0.2.*
+    , tricorder-types ==0.3.*
     , typed-process ==0.2.*
     , unagi-chan ==0.4.*
     , unix ==2.8.*