diff --git a/.github/scripts/check-compat.sh b/.github/scripts/check-compat.sh
new file mode 100755
index 000000000000..24b0efbad255
--- /dev/null
+++ b/.github/scripts/check-compat.sh
@@ -0,0 +1,57 @@
+#!/bin/bash
+
+if [ $# -lt 3 ]; then
+    echo "Usage: check-compat.sh <branch> <simapp_version> [<go_mod_name1> <go_mod_name2> ...]"
+    exit 1
+fi
+
+dir="tmp"
+branch=$1
+simapp_version=$2
+shift 3
+go_mod_names=("$@")
+
+# clone cosmos-sdk
+export FILTER_BRANCH_SQUELCH_WARNING=1
+git clone -b $branch --depth 1 https://github.com/cosmos/cosmos-sdk $dir
+
+# save last commit branch commit
+COMMIT=$(git rev-parse HEAD)
+# save the last main commit
+latest_commit=$(git ls-remote https://github.com/cosmos/cosmos-sdk.git refs/heads/main | cut -f1 || "main")
+
+# if simapp_version is v2 then use simapp/v2
+if [ $simapp_version == "v2" ]; then
+  cd $dir/simapp/v2
+else
+  cd $dir/simapp
+fi
+
+# bump all cosmos-sdk packages to latest branch commit
+VERSIONS=$(go mod edit -json | jq -r '.Replace[].Old.Path')
+
+# Initialize variables for different types of replaces
+BRANCH_REPLACES=""
+MAIN_REPLACES=""
+REQUIRES=""
+
+for version in $VERSIONS; do
+   if [[ " ${go_mod_names[@]} " =~ " ${version} " ]]; then
+    MAIN_REPLACES+=" -replace $version=$version@$latest_commit"
+    continue
+  elif [[ $version == "github.com/cosmos/cosmos-sdk"* || $version == "cosmossdk.io/"* ]]; then
+    BRANCH_REPLACES+=" -replace $version=$version@$COMMIT"
+  fi
+done
+
+for mod in ${go_mod_names[@]}; do
+  REQUIRES+=" -require $mod@$latest_commit"
+done
+
+# Apply the replaces
+go mod edit $BRANCH_REPLACES $MAIN_REPLACES $REQUIRES
+
+go mod tidy
+
+# Test SimApp
+go test -mod=readonly -v ./...
\ No newline at end of file
diff --git a/.github/workflows/software-compat-v052.yml b/.github/workflows/software-compat-v052.yml
new file mode 100644
index 000000000000..ba6e7cd4b805
--- /dev/null
+++ b/.github/workflows/software-compat-v052.yml
@@ -0,0 +1,75 @@
+name: SimApp (v2) v0.52 Integration with Main
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+jobs:
+  compat:
+    name: Software Compat
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out source
+        uses: actions/checkout@v4
+        with:
+          sparse-checkout: |
+            .github/scripts/check-compat.sh
+          sparse-checkout-cone-mode: false
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "1.22"
+          check-latest: true
+      - name: Test v052 with latest main
+        run: |
+          .github/scripts/check-compat.sh $BRANCH $SIMAPP_VERSION cosmossdk.io/runtime/v2 cosmossdk.io/server/v2 cosmossdk.io/store/v2 cosmossdk.io/server/v2/stf cosmossdk.io/server/v2/appmanager cosmossdk.io/api cosmossdk.io/store cosmossdk.io/core cosmossdk.io/core/testing
+        env:
+          BRANCH: release/v0.52.x
+          SIMAPP_VERSION: v1
+      - name: Test v052 v2 with latest main
+        run: |
+          .github/scripts/check-compat.sh $BRANCH $SIMAPP_VERSION cosmossdk.io/runtime/v2 cosmossdk.io/server/v2 cosmossdk.io/store/v2 cosmossdk.io/server/v2/stf cosmossdk.io/server/v2/appmanager cosmossdk.io/api cosmossdk.io/store cosmossdk.io/core cosmossdk.io/core/testing
+        env:
+          BRANCH: release/v0.52.x
+          SIMAPP_VERSION: v2
+  sims-notify-success:
+    needs: [compat]
+    runs-on: ubuntu-latest
+    if: ${{ success() }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Get previous workflow status
+        uses: ./.github/actions/last-workflow-status
+        id: last_status
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Notify Slack on success
+        if: ${{ steps.last_status.outputs.last_status == 'failure' }}
+        uses: rtCamp/action-slack-notify@v2.3.0
+        env:
+          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
+          SLACK_CHANNEL: sdk-sims
+          SLACK_USERNAME: release/v0.52.x x main compat
+          SLACK_ICON_EMOJI: ":white_check_mark:"
+          SLACK_COLOR: good
+          SLACK_MESSAGE: Latest main x v0.52.x is compatible
+          SLACK_FOOTER: ""
+
+  sims-notify-failure:
+    permissions:
+      contents: none
+    needs: [compat]
+    runs-on: ubuntu-latest
+    if: ${{ failure() }}
+    steps:
+      - name: Notify Slack on failure
+        uses: rtCamp/action-slack-notify@v2.3.0
+        env:
+          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
+          SLACK_CHANNEL: sdk-sims
+          SLACK_USERNAME: release/v0.52.x x main compat
+          SLACK_ICON_EMOJI: ":skull:"
+          SLACK_COLOR: danger
+          SLACK_MESSAGE: Latest main x v0.52.x is breaking
+          SLACK_FOOTER: ""