Release commit for v3.1.5 (#5501)

Signed-off-by: Fedor Partanskiy <fredprtnsk@gmail.com>

Author: pfi79

Makefile

@@ -46,7 +46,7 @@
 #   - verify - runs unit tests for only the changed package tree
 
 UBUNTU_VER ?= 24.04
-FABRIC_VER ?= 3.1.4
+FABRIC_VER ?= 3.1.5
 
 # 3rd party image version
 # These versions are also set in the runners in ./integration/runners/

docs/source/whatsnew.rst

@@ -104,6 +104,7 @@ Additionally, take a look at the announcements about changes and deprecations th
 * `Fabric v3.1.2 release notes <https://github.com/hyperledger/fabric/releases/tag/v3.1.2>`_.
 * `Fabric v3.1.3 release notes <https://github.com/hyperledger/fabric/releases/tag/v3.1.3>`_.
 * `Fabric v3.1.4 release notes <https://github.com/hyperledger/fabric/releases/tag/v3.1.4>`_.
+* `Fabric v3.1.5 release notes <https://github.com/hyperledger/fabric/releases/tag/v3.1.5>`_.
 
 .. Licensed under Creative Commons Attribution 4.0 International License
    https://creativecommons.org/licenses/by/4.0/

release_notes/v3.1.5.md

@@ -0,0 +1,50 @@
+v3.1.5 Release Notes - June 18, 2026
+=====================================
+
+
+Improvements and Fixes
+----------------------
+
+1. Fixed gossip: return after sending NACK on private data store failure by @veyron-kairo in [5422](https://github.com/hyperledger/fabric/pull/5422).
+2. Fixed pvtdatastorage: close collItr before releasing purgerLock in processCollElgEvents by @veyron-kairo in [5424](https://github.com/hyperledger/fabric/pull/5424).
+3. Optimize peer startup by skipping full chaincode package reads by @C0rWin in [5418](https://github.com/hyperledger/fabric/pull/5418).
+4. Fixed pvtdatastorage: release iterators in deleteDataMarkedForPurge by @veyron-kairo in [5430](https://github.com/hyperledger/fabric/pull/5430).
+5. Fixed ledger: close snapshot file readers in import functions by @veyron-kairo in [5431](https://github.com/hyperledger/fabric/pull/5431).
+6. Fixed orderer: cancel all streams in RemoteContext.Abort() by @veyron-kairo in [5432](https://github.com/hyperledger/fabric/pull/5432).
+7. Fixed an error in building the plan for the endorsement by @pfi79 in [5456](https://github.com/hyperledger/fabric/pull/5456).
+8. Recover from panic in HandleTransaction to prevent peer crash by @Jaskirat-s7 in [#5472](https://github.com/hyperledger/fabric/pull/#5472).
+9. Fixed data race in bft deliverer by @pfi79 in [5464](https://github.com/hyperledger/fabric/pull/5464).
+10. Fixed smartbft: implement Errored() on BFTChain by @FirePheonix in [5451](https://github.com/hyperledger/fabric/pull/5451).
+11. Fixed gossip: implement result reporting for payloads buffer push by @FirePheonix in [5443](https://github.com/hyperledger/fabric/pull/5443).
+12. Making the go chaincode build independent of the go fabric version by @pfi79 in [5488](https://github.com/hyperledger/fabric/pull/5488).
+13. Restore configurable chaincode base image pull behavior by @drupadh-dinesh in [5497](https://github.com/hyperledger/fabric/pull/5497).
+
+Dependencies
+------------
+Fabric v3.1.5 has been tested with the following dependencies:
+* Go 1.26.4
+* CouchDB v3.4.2
+
+Fabric docker images on docker.io and ghcr.io utilize Ubuntu 24.04.
+
+
+Changes and Removals
+--------------------
+
+See the [v3.0.0 release notes](https://github.com/hyperledger/fabric/releases/tag/v3.0.0) for changes and removals between Fabric v2.x and Fabric v3.x.
+
+
+Deprecated features
+-------------------
+
+**Block dissemination via gossip is deprecated and may be removed**
+
+Block dissemination via gossip is deprecated and may be removed in a future release.
+Fabric peers can be configured to receive blocks directly from an ordering service
+node, and not gossip blocks, by using the following configuration:
+```
+peer.gossip.orgLeader: true
+peer.gossip.useLeaderElection: false
+peer.gossip.state.enabled: false
+peer.deliveryclient.blockGossipEnabled: false
+```