Contributor Meetings 2023

January 11, 2023

• Fabric v2.5 update – new ARM images and binaries
• Fabric v3 update – Smart BFT
• Admin SDK project - https://github.com/hyperledger/fabric-admin-sdk
• Chaincode builder for kubernetes RFC
• Microfab lab - https://github.com/hyperledger-labs/microfab

February 8, 2023

• Fabric v2.5 beta
• Fabric v3 update – Smart BFT
• Performance doc and blog
  • https://hyperledger-fabric.readthedocs.io/en/latest/performance.html
  • https://www.hyperledger.org/blog/2023/02/16/benchmarking-hyperledger-fabric-2-5-performance
• Admin SDK project - https://github.com/hyperledger/fabric-admin-sdk
• Project recommendations

March 8, 2023

• Fabric recent releases
  • Fabric v2.2.10 LTS – dependency updates
  • Fabric v2.4.9 – fixes including orderer cert renew without system channel

• Next Fabric release – v2.5.0-beta available
  • Purge history of private data
  • Dependency updates
  • Next LTS release
  • ARM binaries and images (relief for M1!)
  • Remaining issue – update MSP for Go 1.19 - https://github.com/hyperledger/fabric/pull/3774

• Fabric v3 development - SmartBFT
  • First pass of end-to-end integration merged in main branch, working on docs and sample for an early tech preview release - v3.0.0-preview?
  • Then will tackle some of the larger refactoring around “inversion of control” for orderer binaries per consensus algorithm (Raft, SmartBFT)
  • Need to address Raft CI failures in unit tests and integration tests

• Admin SDK for chaincode and channel management
  • Developing a Go admin SDK - https://github.com/hyperledger/fabric-admin-sdk

• New Hyperledger lab for Fabric Ansible Collection
  • Automate the building of Hyperledger Fabric networks, uses fabric-operator lab
  • https://github.com/hyperledger-labs/fabric-ansible-collection

April 5, 2023

• Fabric v2.5.0 released
  • Purge history of private data
  • Dependency updates
  • ARM binaries and images (relief for M1!) - same updates in Fabric CA v1.5.6
  • Current LTS release - Users should evaluate upgrade from prior v2.2 LTS release

• Legacy SDK deprecation
  • The legacy Fabric SDKs are deprecated.
    • Fabric SDK for Node v2.2, Fabric SDK for Java v2.2, Fabric SDK for Go v1.0
  • Users of the legacy SDKs are encouraged to evaluate the Fabric Gateway client API as a replacement.
    • Fabric Gateway client API is the recommended SDK for client applications when using Fabric v2.4 or v2.5
    • Available in Go, Node, and Java programming languages.

    • Fabric Gateway information - https://hyperledger-fabric.readthedocs.io/en/release-2.5/whatsnew.html#fabric-gateway

    • Fabric Gateway client API documentation - https://hyperledger.github.io/fabric-gateway/

    • Fabric Gateway client API migration guide https://hyperledger.github.io/fabric-gateway/migration

• Current Fabric priorities
  • v2.2.11 - Update Go to v1.20; update other dependencies for prior LTS release
  • v3.0 preview for SmartBFT - Create usage documentation and sample
  • Fix Raft unit test and integration test CI flake failures
  • fabric-samples and fabric-test CI streamlining - reduce redundant tests
  • New issue template - https://github.com/hyperledger/fabric/issues/4143

• Admin SDK
  • Call for test and feedback
  • Prepare 1st release if there is no further feedback after close #105 and #100
  • Question as #105, for external chaincode service, should we use ccaas or external as type in metadata.json?

May 3, 2023

• Fabric releases
  • Fabric v2.2.11 released - update to Go 1.20.3 and other dependencies to resolve vulnerabilities (prior LTS release)
  • Fabric v2.5.1 released - update to Go 1.20.3 (current LTS release)

• Current Fabric priorities
  • v3.0 preview for SmartBFT - Create usage documentation and sample
  • Fix Raft unit test and integration test CI flake failures
  • fabric-samples test-network-k8s - Tatsuya Sato volunteered to fix issues with v2.5 and maintain going forward
  • Improve CI time
    • Trial of large runners in fabric and fabric-samples main branches working well - no queueing, faster execution
    • fabric-samples and fabric-test CI streamlining - reduce redundant tests

• Admin SDK
  • Call for test and feedback
  • Prepare 1st release with #121 leaving #100 as open question. 
  • #122 for 2nd version planning.

May 31, 2023

• Fabric releases
  • Fabric v2.5.2 coming soon - fixes and update to Go 1.20.4 (current LTS release)

• Current Fabric priorities
  • v3.0 preview for SmartBFT - Create usage documentation and sample
  • Fix Raft unit test and integration test CI flake failures
  • fabric-samples test-network-k8s - DONE - Updated to v2.5, thanks to new fabric-samples maintainer Tatsuya Sato!
  • Improve CI time
    • Trial of large runners in fabric and fabric-samples main branches working well - no queueing, faster execution
    • fabric-samples and fabric-test CI streamlining - reduce redundant tests

• Admin SDK
  • We have new feature request which blocks tag v0.0.0 release.
  • We are looking for use case for example, https://github.com/hyperledger/fabric-cli or https://github.com/hyperledger-labs/fabric-operator/tree/main
  • Waiting for https://github.com/hyperledger/fabric-config/issues/53 if there any chance for invoke fabric-config.

June 28, 2023 - Meeting cancelled this month

July 19, 2023

• Fabric releases
  • Fabric v2.2.12 - June 2 (prior LTS release)
    • Fix private data collection update during state database rebuild
  • Fabric v2.5.3 - June 14 (current LTS release)
    • Fix deadlock can occur on orderer startup while applying raft configuration changes
    • Go 1.20.5
  • Fabric v2.5.4 - Coming Soon
    • backport cert sanitization error checking - https://github.com/hyperledger/fabric/pull/4307
    • Go 1.20.6

• Recent improvements
  • New Github Action - doc broken link checker - https://github.com/hyperledger/fabric/actions/workflows/broken-link-checker.yml

• Current Fabric priorities
  • v3.0 - preview for SmartBFT - Create usage documentation and sample
  • v3.0 - ledger block cache
  • Fix Raft unit test and integration test CI flake failures
  • fabric-ca - fix CI issue
  • Hyperledger Fabric Certified Practitioner - Exam is being created - any volunteers to draft questions?

• Chaincode builder discussion - see https://github.com/hyperledger/fabric/issues/3984.

• Admin SDK
  • Draft release for fabric-cli investigation 
  • issue found

• fabric 2.5 i18n zh document

August 16, 2023

• Recent Fabric releases
  • Fabric v2.2.13 - August 2 (prior LTS release)
    • cert sanitization error checking
    • Go 1.20.6
  • Fabric v2.5.4 - August 2 (current LTS release)
    • Fix orderer startup issue - raft wal: max entry size limit exceeded
    • cert sanitization error checking
    • Go 1.20.6

• Fabric v3.0 work items
  • Preview release for SmartBFT
    • Create usage documentation and sample
  • Finalize SmartBFT for eventual production GA release

    • Byzantine block puller for the peer and the orderer

    • Improved transaction pool for SmartBFT

    • Unit test coverage for SmartBFT chain

    • Integration test coverage for SmartBFT orderer

  • Ledger block cache PR to improve performance
  • Plan for other v3.0 changes, e.g. removal of old lifecycle, removal of gossiping of blocks

• Admin SDK
  • 1.0 released with feature which integrated with test-network with code as e2e test in golang as implementation.
  • Fabric cli integration and bug fix?
  • Open to any integration with tools as either operator or anything you want.

• Other
  • Fix Raft unit test and integration test CI flake failures
  • Hyperledger Fabric Certified Practitioner - Exam is being created - any volunteers to draft questions?

September 13, 2023

• Recent Fabric releases
  • Fabric v3.0.0-preview - September 1
    • SmartBFT technical preview
    • See mailing list announcement for details
  • Fabric CA v1.5.7
    • IdentityMixer revocation enhancements
    • Go v1.20.5

• Fabric v3.0 work items
  • Finalize SmartBFT for eventual production GA release

    • Byzantine block puller for the peer and the orderer

    • Improved transaction pool for SmartBFT

    • Unit test coverage for SmartBFT chain

    • Integration test coverage for SmartBFT orderer

  • Plan for other v3.0 changes, e.g. removal of old lifecycle, removal of gossiping of blocks
  • Fix Raft unit test and integration test CI flake failures
  • fabric-samples CI test failures

• Admin SDK
  • update with test guidance wiki as link

• Other
  • RFC to extend queryapproved function for all chaincodes
  • Hyperledger Fabric Certified Practitioner - Exam has been beta tested, will be available soon!
  • CC-Tools lab proposal
  • Understanding Byzantine Fault Tolerance in Hyperledger Fabric - meetup - October 3
  • Create a Currency Management Application - workshop October 12

October 11, 2023

• Upcoming Fabric releases
  • Fabric v2.2.14, v2.5.5
    • Go 1.21

• Fabric v3.0 work items
  • Finalize SmartBFT for eventual production GA release

    • Byzantine block puller for the peer and the orderer

    • Improved transaction pool for SmartBFT

    • Unit test coverage for SmartBFT chain

    • Integration test coverage for SmartBFT orderer

  • Transition from github.com/pkg/errors
  • Extend to lifecycle chaincode checkcommitreadiness to provide details of the discrepancies
  • Plan for other v3.0 changes, e.g. removal of old lifecycle, removal of gossiping of blocks

• Admin SDK

1. • Hope to build fabric-cli base on admin sdk to reduce effort on golang package version dependency.
   • Seems new configtx structure in fabric 3.0 preview makes different with fabric 2.x (https://github.com/hyperledger/fabric/issues/4459)
   • some basic function supporting(https://github.com/hyperledger/fabric-admin-sdk/pull/139)

• Other
  • RFC to extend queryapproved function for all chaincodes
  • Hyperledger Fabric Certified Practitioner - Exam is available!
  • Create a Currency Management Application - privacy preserving token transfer workshop October 12

November 8, 2023

• Recent Fabric releases
  • Fabric v2.2.14, v2.5.5
    • Go 1.21
    • Additional block validations

• Fabric v3.0 work items
  • Finalize SmartBFT for eventual production GA release

    • Byzantine block puller for the peer and the orderer

    • Improved transaction pool for SmartBFT

    • Unit test coverage for SmartBFT chain

    • Integration test coverage for SmartBFT orderer

  • Transition from github.com/pkg/errors
  • Plan for other v3.0 changes, e.g. removal of old lifecycle, removal of gossiping of blocks

• Admin SDK

1. • admin cli pr poc https://github.com/hyperledger/fabric-admin-sdk/pull/146 need suggestion and feedback for current attempts, before moving next.
   • Seems new configtx structure in fabric 3.0 preview makes different with fabric 2.x (https://github.com/hyperledger/fabric/issues/4459)

• Fabric Ecosystem update

• Other
  • RFC to extend queryapproved function for all chaincodes
  • https://github.com/hyperledger/fabric-docs-i18n/pull/920 Fabric v2.5 Chinese doc translation PR

December 6, 2023

• Fabric v3.0 work items
  • Finalize SmartBFT for eventual production GA release

    • Byzantine block puller for the peer and the orderer - Yoav

    • Improved transaction pool for SmartBFT - Hagar

    • Unit test coverage for SmartBFT chain - Emil

    • Integration test coverage for SmartBFT orderer - May, Arkadi

    • Migration from Raft to SmartBFT - Yacov, May, Yoav
    • Inversion of control - one binary per consensus algorithm - Deferred from v3.0
  • Transition from github.com/pkg/errors
  • Plan for other v3.0 changes, e.g. removal of old lifecycle (started), removal of gossiping of blocks (likely deferred)

• Other
  • RFC to extend queryapproved function for all chaincodes - Approved
  • CI - Azure Pipelines migration to GitHub Actions - final repository is fabric-test, some tests will be retired
  • Hyperledger Member Summit APAC was held