From 96ed5214689d932ac88a0528620289075aa1123b Mon Sep 17 00:00:00 2001
From: Bruno Menezes <brunodmenezes@gmail.com>
Date: Tue, 3 Nov 2026 10:24:05 +0000
Subject: [PATCH] feat(sdk): keep historical states in the devnet anvil

---
 .changeset/shiny-wings-play.md | 5 +++++
 packages/sdk/devnet            | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/shiny-wings-play.md

diff --git a/.changeset/shiny-wings-play.md b/.changeset/shiny-wings-play.md
new file mode 100644
index 00000000..6d8b5a87
--- /dev/null
+++ b/.changeset/shiny-wings-play.md
@@ -0,0 +1,5 @@
+---
+"@cartesi/sdk": patch
+---
+
+raise the devnet anvil's state retention from 3,600 to 86,400 past blocks (--max-persisted-states 86400, the value the rollups-node devnet uses), so reads at older blocks keep working through long cartesi run sessions
diff --git a/packages/sdk/devnet b/packages/sdk/devnet
index 960f2d6c..418adf17 100755
--- a/packages/sdk/devnet
+++ b/packages/sdk/devnet
@@ -1,3 +1,3 @@
 #!/usr/bin/env sh
 set -e
-exec anvil --load-state /usr/share/cartesi/anvil_state.json "$@"
+exec anvil --load-state /usr/share/cartesi/anvil_state.json --preserve-historical-states --max-persisted-states 86400 "$@"