diff --git a/Dockerfile b/Dockerfile
index afbb3da..81a496e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -32,7 +32,7 @@ COPY --from=build /src/dist/container/bin/ /usr/local/bin/
 COPY --from=build /src/dist/worker-app/ /app/dist/worker-app/
 COPY --from=build /src/dist/cloudflare/assets/ /app/dist/cloudflare/assets/
 COPY --from=build /src/dist/container/wrangler.jsonc /app/wrangler.jsonc
-ENV CELLD_ESBUILD=/usr/local/bin/esbuild CELLD_IDLE_EVICT_S=60
+ENV CELLD_ESBUILD=/usr/local/bin/esbuild CELLD_LTX_RETENTION_SECS=3600
 WORKDIR /app
 USER 65532:65532
 VOLUME ["/app/.celld"]
diff --git a/cloudflare/library.ts b/cloudflare/library.ts
index 5c705c5..530d7a4 100644
--- a/cloudflare/library.ts
+++ b/cloudflare/library.ts
@@ -150,6 +150,9 @@ export class ArtifactLibrary extends DurableObject<unknown> {
         }
       }
       this.sql.exec("create index if not exists serve_events_version on serve_events(version_id, served_at)");
+      // History lists read only these columns. Covering them keeps listings from
+      // reading each revision's source, which precedes them in the row.
+      this.sql.exec("create index if not exists versions_history on versions(artifact_id, revision, id, created_at, source_hash, runtime, reason, restored_from)");
     });
   }
 
diff --git a/cloudflare/scripts.ts b/cloudflare/scripts.ts
index c0774a7..8e07762 100644
--- a/cloudflare/scripts.ts
+++ b/cloudflare/scripts.ts
@@ -42,6 +42,9 @@ export class ScriptLibrary extends DurableObject<unknown> {
         this.sql.exec(`alter table ${table} add column project text not null default '{"files":{},"dependencies":{},"lock":{}}'`);
       }
     }
+    // History lists read only these columns, newest first. Covering them keeps
+    // listings from reading each revision's source, which precedes them in the row.
+    this.sql.exec("create index if not exists script_versions_history on script_versions(created_at, id, workspace, name, revision, source_hash, reason, restored_from)");
   }
   private row(input: {workspace: string; name: string}): Row {
     const {workspace,name} = key(input);
diff --git a/docs/celld-deployment.md b/docs/celld-deployment.md
index d301219..6f18db6 100644
--- a/docs/celld-deployment.md
+++ b/docs/celld-deployment.md
@@ -51,11 +51,18 @@ For production or multiple machines, use celld's bucket-backed node mode:
 4. Terminate TLS and authenticate users in the application or a chosen reverse
    proxy. Keep the operator/peer listener on a trusted private network, with an
    encrypted overlay when that network does not provide confidentiality.
-5. Use `/.well-known/celld/health` for node readiness. `/health` is an application
+5. Set `CELLD_LTX_RETENTION_SECS` (for example, `3600`) on every node once all
+   nodes run 0.6.1. Without it, celld never deletes superseded snapshot epochs,
+   so bucket usage grows with each activation, including every wake after idle
+   eviction. Epoch deletion requires list-after-write consistency; see the
+   [storage guarantees](https://github.com/denoland/celld/blob/v0.6.1/docs/guarantees.md)
+   before enabling it on a multi-region bucket. Nodes using `bucket` durability
+   delete nothing. Unset it on every node before rolling back to celld 0.6.0.
+6. Use `/.well-known/celld/health` for node readiness. `/health` is an application
    route and does not establish node readiness. Allow graceful SIGTERM shutdown:
    the supervisor's stop grace must exceed celld's configured shutdown bound
    (40 seconds by default), with enough time for the expected drain and handoff.
-6. Update app code through `celld deploy`. Running nodes adopt deployments in
+7. Update app code through `celld deploy`. Running nodes adopt deployments in
    place; a failed build leaves the previous deployment serving. For runtime
    upgrades, follow the release-specific shutdown requirements. The
    [0.6.0 release](https://github.com/denoland/celld/releases/tag/v0.6.0) requires
diff --git a/docs/daemon.md b/docs/daemon.md
index 9163423..608da11 100644
--- a/docs/daemon.md
+++ b/docs/daemon.md
@@ -132,6 +132,16 @@ credentials or other environment variables. The native server binds only to
 loopback. Its state is local application data and is not uploaded or backed up
 automatically.
 
+celld stores full copies of an object's database each time the object is unloaded
+and started again. The host keeps idle objects in memory, so this happens when the
+server restarts or celld unloads objects under memory pressure, not after each idle
+period. Setting `CELLD_IDLE_EVICT_S` unloads objects after that many idle seconds,
+and every later wake stores more copies. The host deletes copies that are older than
+one hour and no longer needed for recovery (`CELLD_LTX_RETENTION_SECS`, default
+`3600`). Deletion can take about ten minutes after the next write to that object.
+Set `CELLD_LTX_RETENTION_SECS=0` to keep every copy; storage then grows with each
+restart.
+
 For bucket-backed production nodes, TLS/authentication boundaries, health checks,
 and graceful rollout guidance, see [celld deployment](celld-deployment.md).
 
diff --git a/docs/docker.md b/docs/docker.md
index bf3574e..4a78294 100644
--- a/docs/docker.md
+++ b/docs/docker.md
@@ -15,7 +15,9 @@ docker run -d --name artifacts --restart unless-stopped \
 Open [localhost:4786](http://127.0.0.1:4786); the MCP endpoint is
 `http://127.0.0.1:4786/mcp`. The named volume preserves apps, databases, files,
 and schedules across container replacements. Stop the container before backing
-up the volume. Allow 60 seconds for graceful shutdown.
+up the volume. Allow 60 seconds for graceful shutdown. The image deletes
+superseded storage snapshots after one hour, as described in the
+[host guide](daemon.md#data-and-configuration).
 
 ## Configure network access
 
diff --git a/src/local/server.ts b/src/local/server.ts
index 49f23f5..00d5db4 100644
--- a/src/local/server.ts
+++ b/src/local/server.ts
@@ -61,7 +61,11 @@ export async function runCelldServer(options: { port?: number; stateDir?: string
     const esbuild = esbuildRequire.resolve(`@esbuild/${process.platform}-${process.arch}/bin/esbuild`);
     child = Bun.spawn([executable, "dev", project, "--host", "127.0.0.1", "--port", String(port), "--no-watch", "--logs"], {
       cwd: project,
-      env: { ...process.env, CELLD_ESBUILD: esbuild, CELLD_IDLE_EVICT_S: process.env.CELLD_IDLE_EVICT_S ?? "60", RUST_LOG: process.env.RUST_LOG ?? "warn" },
+      // Each unload and restart of an object stores full copies of its database, so
+      // idle objects stay resident (celld still unloads them under memory pressure).
+      // Retention lets celld delete superseded copies.
+      env: { ...process.env, CELLD_ESBUILD: esbuild,
+        CELLD_LTX_RETENTION_SECS: process.env.CELLD_LTX_RETENTION_SECS ?? "3600", RUST_LOG: process.env.RUST_LOG ?? "warn" },
       stdin: "ignore", stdout: "pipe", stderr: "pipe",
     });
     const forward = async (stream: ReadableStream<Uint8Array> | number | undefined) => {