diff --git a/.changeset/support_v2_hardfork.md b/.changeset/support_v2_hardfork.md
new file mode 100644
index 0000000..a2c2045
--- /dev/null
+++ b/.changeset/support_v2_hardfork.md
@@ -0,0 +1,26 @@
+---
+default: major
+---
+
+# Support V2 Hardfork
+
+The V2 hardfork is scheduled to modernize Sia's consensus protocol, which has been untouched since Sia's mainnet launch back in 2014, and improve accessibility of the storage network. To ensure a smooth transition from V1, it will be executed in two phases. Additional documentation on upgrading will be released in the near future.
+
+#### V2 Highlights
+- Drastically reduces blockchain size on disk
+- Improves UTXO spend policies - including HTLC support for Atomic Swaps
+- More efficient contract renewals - reducing lock up requirements for hosts and renters
+- Improved transfer speeds - enables hot storage
+
+#### Phase 1 - Allow Height
+- **Activation Height:** `513400` (March 10th, 2025)
+- **New Features:** V2 transactions, contracts, and RHP4
+- **V1 Support:** Both V1 and V2 will be supported during this phase
+- **Purpose:** This period gives time for integrators to transition from V1 to V2
+- **Requirements:** Users will need to update to support the hardfork before this block height
+
+#### Phase 2 - Require Height
+- **Activation Height:** `526000` (June 6th, 2025)
+- **New Features:** The consensus database can be trimmed to only store the Merkle proofs
+- **V1 Support:** V1 will be disabled, including RHP2 and RHP3. Only V2 transactions will be accepted
+- **Requirements:** Developers will need to update their apps to support V2 transactions and RHP4 before this block height
diff --git a/go.mod b/go.mod
index 5c4a1b2..601adb2 100644
--- a/go.mod
+++ b/go.mod
@@ -6,8 +6,8 @@ toolchain go1.23.2
 
 require (
 	github.com/mattn/go-sqlite3 v1.14.24
-	go.sia.tech/core v0.8.0
-	go.sia.tech/coreutils v0.8.0
+	go.sia.tech/core v0.9.0
+	go.sia.tech/coreutils v0.9.0
 	go.sia.tech/jape v0.12.1
 	go.sia.tech/web/walletd v0.26.0
 	go.uber.org/zap v1.27.0
diff --git a/go.sum b/go.sum
index 222b46e..0b5b635 100644
--- a/go.sum
+++ b/go.sum
@@ -10,10 +10,10 @@ github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKs
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 go.etcd.io/bbolt v1.3.11 h1:yGEzV1wPz2yVCLsD8ZAiGHhHVlczyC9d1rP43/VCRJ0=
 go.etcd.io/bbolt v1.3.11/go.mod h1:dksAq7YMXoljX0xu6VF5DMZGbhYYoLUalEiSySYAS4I=
-go.sia.tech/core v0.8.0 h1:J6vZQlVhpj4bTVeuC2GKkfkGEs8jf0j651Kl1wwOxjg=
-go.sia.tech/core v0.8.0/go.mod h1:Wj1qzvpMM2rqEQjwWJEbCBbe9VWX/mSJUu2Y2ABl1QA=
-go.sia.tech/coreutils v0.8.0 h1:1dcl0vxY+MBgAdJ7PdewAr8RkZJn4/6wAKEZfi4iYn0=
-go.sia.tech/coreutils v0.8.0/go.mod h1:ml5MefDMWCvPKNeRVIGHmyF5tv27C9h1PiI/iOiTGLg=
+go.sia.tech/core v0.9.0 h1:qV7V8nkNaPvBEhkbwgrETTkb7JCMcAnKUQt9nUumP4k=
+go.sia.tech/core v0.9.0/go.mod h1:3NAvYHuzAZg9vP6pyIMOxjTkgHBQ3vx9cXTqRF6oEa4=
+go.sia.tech/coreutils v0.9.0 h1:5cnK0RtHOyErGhcmNkmCdEKeuj1tECwO9PYbErEbpDQ=
+go.sia.tech/coreutils v0.9.0/go.mod h1:KFq1q5/YbPH6ZSWtXCxA1bRhBF5Zgcj8G3Wvu0jr/BA=
 go.sia.tech/jape v0.12.1 h1:xr+o9V8FO8ScRqbSaqYf9bjj1UJ2eipZuNcI1nYousU=
 go.sia.tech/jape v0.12.1/go.mod h1:wU+h6Wh5olDjkPXjF0tbZ1GDgoZ6VTi4naFw91yyWC4=
 go.sia.tech/mux v1.3.0 h1:hgR34IEkqvfBKUJkAzGi31OADeW2y7D6Bmy/Jcbop9c=