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Add release notes and doc for v2.2.9. Signed-off-by: David Enyeart <enyeart@us.ibm.com> Signed-off-by: David Enyeart <enyeart@us.ibm.com>
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v2.2.9 Release Notes - October 25, 2022 | ||
======================================= | ||
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Improvements | ||
------------ | ||
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**peer - Add delivery client logging** | ||
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Add peer logging for delivery client connections and disconnections to improve serviceability. | ||
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Dependencies | ||
------------ | ||
Fabric v2.2.9 has been tested with the following dependencies: | ||
* Go 1.18.7 | ||
* CouchDB v3.2.2 | ||
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Fabric docker images on dockerhub utilize Alpine 3.16. | ||
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Deprecations (existing) | ||
----------------------- | ||
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**FAB-15754: The 'Solo' consensus type is deprecated.** | ||
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The 'Solo' consensus type has always been marked non-production and should be in | ||
use only in test environments, however for compatibility it is still available, | ||
but may be removed entirely in a future release. | ||
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**FAB-16408: The 'Kafka' consensus type is deprecated.** | ||
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The 'Raft' consensus type was introduced in v1.4.1 and has become the preferred | ||
production consensus type. There is a documented and tested migration path from | ||
Kafka to Raft, and existing users should migrate to the newer Raft consensus type. | ||
For compatibility with existing deployments, Kafka is still supported, | ||
but may be removed entirely in a future release. | ||
Additionally, the fabric-kafka and fabric-zookeeper docker images are no longer updated, maintained, or published. | ||
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**Fabric CouchDB image is deprecated** | ||
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v2.2.0 added support for CouchDB 3.1.0 as the recommended and tested version of CouchDB. | ||
If prior versions are utilized, a Warning will appear in peer log. | ||
Note that CouchDB 3.1.0 requires that an admin username and password be set, | ||
while this was optional in CouchDB v2.x. See the | ||
[Fabric CouchDB documentation](https://hyperledger-fabric.readthedocs.io/en/v2.2.0/couchdb_as_state_database.html#couchdb-configuration) | ||
for configuration details. | ||
Also note that CouchDB 3.1.0 default max_document_size is reduced to 8MB. Set a higher value if needed in your environment. | ||
Finally, the fabric-couchdb docker image will not be updated to v3.1.0 and will no longer be updated, maintained, or published. | ||
Users can utilize the official CouchDB docker image maintained by the Apache CouchDB project instead. | ||
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**FAB-7559: Support for specifying orderer endpoints at the global level in channel configuration is deprecated.** | ||
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Utilize the new 'OrdererEndpoints' stanza within the channel configuration of an organization instead. | ||
Configuring orderer endpoints at the organization level accommodates | ||
scenarios where orderers are run by different organizations. Using | ||
this configuration ensures that only the TLS CA certificates of that organization | ||
are used for orderer communications, in contrast to the global channel level endpoints which | ||
would cause an aggregation of all orderer TLS CA certificates across | ||
all orderer organizations to be used for orderer communications. | ||
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**FAB-17428: Support for configtxgen flag `--outputAnchorPeersUpdate` is deprecated.** | ||
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The `--outputAnchorPeersUpdate` mechanism for updating anchor peers has always had | ||
limitations (for instance, it only works the first time anchor peers are updated). | ||
Instead, anchor peer updates should be performed through the normal config update flow. | ||
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**FAB-15406: The fabric-tools docker image is deprecated** | ||
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The fabric-tools docker image will not be published in future Fabric releases. | ||
Instead of using the fabric-tools docker image, users should utilize the | ||
published Fabric binaries. The Fabric binaries can be used to make client calls | ||
to Fabric runtime components, regardless of where the Fabric components are running. | ||
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**FAB-15317: Block dissemination via gossip is deprecated** | ||
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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 by using the following configuration: | ||
``` | ||
peer.gossip.orgLeader: true | ||
peer.gossip.useLeaderElection: false | ||
peer.gossip.state.enabled: false | ||
peer.deliveryclient.blockGossipEnabled: false | ||
``` | ||
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**FAB-15061: Legacy chaincode lifecycle is deprecated** | ||
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The legacy chaincode lifecycle from v1.x is deprecated and will be removed | ||
in a future release. To prepare for the eventual removal, utilize the v2.x | ||
chaincode lifecycle instead, by enabling V2_0 application capability on all | ||
channels, and redeploying all chaincodes using the v2.x lifecycle. The new | ||
chaincode lifecycle provides a more flexible and robust governance model | ||
for chaincodes. For more details see the | ||
[documentation for enabling the new lifecycle](https://hyperledger-fabric.readthedocs.io/en/release-2.2/enable_cc_lifecycle.html). |
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