Merge pull request #996 from tnull/2026-07-bitcoind-bump

Bump CI Bitcoin Core to 31.1

Author: tnull

.github/workflows/0fc-integration.yml

@@ -21,7 +21,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: bin/bitcoind-${{ runner.os }}-${{ runner.arch }}
-          key: bitcoind-29.0-${{ runner.os }}-${{ runner.arch }}
+          key: bitcoind-31.1-${{ runner.os }}-${{ runner.arch }}
       - name: Enable caching for electrs
         id: cache-electrs
         uses: actions/cache@v4

.github/workflows/benchmarks.yml

@@ -25,7 +25,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: bin/bitcoind-${{ runner.os }}-${{ runner.arch }}
-          key: bitcoind-29.0-${{ runner.os }}-${{ runner.arch }}
+          key: bitcoind-31.1-${{ runner.os }}-${{ runner.arch }}
       - name: Enable caching for electrs
         id: cache-electrs
         uses: actions/cache@v4

.github/workflows/hrn-integration.yml

@@ -22,7 +22,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: bin/bitcoind-${{ runner.os }}-${{ runner.arch }}
-          key: bitcoind-29.0-${{ runner.os }}-${{ runner.arch }}
+          key: bitcoind-31.1-${{ runner.os }}-${{ runner.arch }}
       - name: Enable caching for electrs
         id: cache-electrs
         uses: actions/cache@v4

.github/workflows/postgres-integration.yml

@@ -37,7 +37,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: bin/bitcoind-${{ runner.os }}-${{ runner.arch }}
-          key: bitcoind-27_2-${{ runner.os }}-${{ runner.arch }}
+          key: bitcoind-31.1-${{ runner.os }}-${{ runner.arch }}
       - name: Enable caching for electrs
         id: cache-electrs
         uses: actions/cache@v4

.github/workflows/rust.yml

@@ -54,7 +54,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: bin/bitcoind-${{ runner.os }}-${{ runner.arch }}
-          key: bitcoind-29.0-${{ runner.os }}-${{ runner.arch }}
+          key: bitcoind-31.1-${{ runner.os }}-${{ runner.arch }}
       - name: Enable caching for electrs
         id: cache-electrs
         uses: actions/cache@v4

scripts/download_bitcoind_electrs.sh

@@ -10,17 +10,17 @@ HOST_PLATFORM="$(rustc --version --verbose | grep "host:" | awk '{ print $2 }')"
 ELECTRS_DL_ENDPOINT="https://github.com/RCasatta/electrsd/releases/download/electrs_releases"
 ELECTRS_VERSION="esplora_a33e97e1a1fc63fa9c20a116bb92579bbf43b254"
 BITCOIND_DL_ENDPOINT="https://bitcoincore.org/bin/"
-BITCOIND_VERSION="29.0"
+BITCOIND_VERSION="31.1"
 if [[ "$HOST_PLATFORM" == *linux* ]]; then
 	ELECTRS_DL_FILE_NAME=electrs_linux_"$ELECTRS_VERSION".zip
 	ELECTRS_DL_HASH="865e26a96e8df77df01d96f2f569dcf9622fc87a8d99a9b8fe30861a4db9ddf1"
 	BITCOIND_DL_FILE_NAME=bitcoin-"$BITCOIND_VERSION"-x86_64-linux-gnu.tar.gz
-	BITCOIND_DL_HASH="a681e4f6ce524c338a105f214613605bac6c33d58c31dc5135bbc02bc458bb6c"
+	BITCOIND_DL_HASH="b80d9c3e04da78fb6f0569685673418cf686fadba9042d926d13fb87ff503f9e"
 elif [[ "$HOST_PLATFORM" == *darwin* ]]; then
 	ELECTRS_DL_FILE_NAME=electrs_macos_"$ELECTRS_VERSION".zip
 	ELECTRS_DL_HASH="2d5ff149e8a2482d3658e9b386830dfc40c8fbd7c175ca7cbac58240a9505bcd"
 	BITCOIND_DL_FILE_NAME=bitcoin-"$BITCOIND_VERSION"-x86_64-apple-darwin.tar.gz
-	BITCOIND_DL_HASH="5bb824fc86a15318d6a83a1b821ff4cd4b3d3d0e1ec3d162b805ccf7cae6fca8"
+	BITCOIND_DL_HASH="bc506958d0f387c1ea770bdc7c7192a505fa645ff62cabcc7761fa7eb89e867e"
 else
 	printf "\n\n"
 	echo "Unsupported platform: $HOST_PLATFORM Exiting.."

tests/docker/docker-compose-cln.yml

@@ -1,6 +1,6 @@
 services:
   bitcoin:
-    image: blockstream/bitcoind:29.1
+    image: blockstream/bitcoind:31.1
     platform: linux/amd64
     command:
       [

tests/docker/docker-compose-eclair.yml

@@ -5,7 +5,7 @@ services:
   # causing Eclair to fall behind the chain tip. Host networking avoids
   # this by keeping all inter-process communication on localhost.
   bitcoin:
-    image: blockstream/bitcoind:30.2
+    image: blockstream/bitcoind:31.1
     platform: linux/amd64
     network_mode: host
     command:

tests/docker/docker-compose-lnd.yml

@@ -1,6 +1,6 @@
 services:
   bitcoin:
-    image: blockstream/bitcoind:29.1
+    image: blockstream/bitcoind:31.1
     platform: linux/amd64
     command:
       [

tests/docker/docker-compose.yml

@@ -2,7 +2,7 @@ version: '3'
 
 services:
   bitcoin:
-    image: blockstream/bitcoind:27.2
+    image: blockstream/bitcoind:31.1
     platform: linux/amd64
     command:
       [