chore: release v0.3.4 — use Recreate deployment strategy for RWO PVC

Default deploymentStrategy to Recreate to prevent Multi-Attach errors
when rolling out new pods against a ReadWriteOnce PVC. RollingUpdate
starts the new pod before the old one is terminated, causing both to
compete for the volume. Recreate ensures the old pod is gone first.

Configurable via deploymentStrategy in values.yaml.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: mattcamp

CHANGELOG.md

@@ -7,6 +7,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.3.4] - 2026-03-18
+
+### Fixed
+
+- Helm chart now defaults to `Recreate` deployment strategy instead of
+  `RollingUpdate`. With a `ReadWriteOnce` PVC mounted, rolling updates cause
+  a `Multi-Attach` error because the new pod starts before the old one releases
+  the volume. `Recreate` terminates the old pod first. Configurable via
+  `deploymentStrategy` in values.
+
 ## [0.3.3] - 2026-03-17
 
 ### Fixed

charts/osmia/Chart.yaml

@@ -2,8 +2,8 @@ apiVersion: v2
 name: osmia
 description: A Kubernetes-native AI coding agent harness
 type: application
-version: 0.3.3
-appVersion: "0.3.3"
+version: 0.3.4
+appVersion: "0.3.4"
 home: https://github.com/unitaryai/osmia
 sources:
   - https://github.com/unitaryai/osmia

charts/osmia/templates/deployment.yaml

@@ -6,6 +6,8 @@ metadata:
     {{- include "osmia.labels" . | nindent 4 }}
 spec:
   replicas: {{ .Values.replicaCount }}
+  strategy:
+    type: {{ .Values.deploymentStrategy }}
   selector:
     matchLabels:
       {{- include "osmia.selectorLabels" . | nindent 6 }}

charts/osmia/values.yaml

@@ -2,6 +2,11 @@
 
 replicaCount: 1
 
+# Use Recreate when a ReadWriteOnce PVC is mounted — RollingUpdate causes
+# Multi-Attach errors since the new pod starts before the old one releases
+# the volume. Switch to RollingUpdate only if persistence is disabled.
+deploymentStrategy: Recreate
+
 image:
   repository: ghcr.io/unitaryai/osmia/controller
   pullPolicy: IfNotPresent