v0.19.16

Composer v0.19.16

Welcome to Hyperledger Composer v0.19.16, which comes with some logging and functional updates, to help keep you all Composing.

Features

✨ #4424 picks up the latest fabric shim 1.1.3 which provides continuous keep-a-lives within the node chaincode
✨ #4415 improvements to connector logging and a better disconnect mechanism. Client apps default log setting changed to warning
✨ #4434 adds the ability to get some performance metrics from the hlfv1 fabric connector when doing invoke/query

Bug fixes

🐞 #4433 modification so when a peer stopped or disconnected, queryChaincode will try other peers
🐞 #4431 removes all references to LIMIT and SKIP from v0.19.x
🐞 #4429 performance logging is now available at the verbose level rather than debug for the chaincode runtime

Notes

⚠️ If using the Composer tooling to create a Hyperledger Fabric development server, this will now be creating a v1.2.0 server by default. If you are using a different level of Composer v0.16.x, you will need to set the relevant environment variable via export FABRIC_VERSION=hlfvXX when using the Hyperledger Fabric development servers provided by Composer:

• hlfv1 for Fabric v1.0
• hlfv11 for Fabric v1.1
• hlfv12 for Fabric v1.2

⚠️ There are multiple support splits across differing Fabric levels, so please be careful with what versions are being used:

• v0.20.0 and above are compatible with the Fabric 1.2.0 and 1.2.1 driver only
• v0.18.2, v0.19.0 and above are compatible with the Fabric 1.1.0 driver only
• v0.18.0 -> v0.18.1 are compatible with the Fabric RC1 driver only
• v0.17.3 -> v0.17.6 are compatible with Fabric alpha driver only
• v0.17.0 -> v0.17.2 are compatible with Fabric preview driver only

⚠️ The is a change in the business network lifecycle administration, and business network card commands between v0.18.2 and v0.19.0

Conga Comics

If you are new to Conga Comics, then you can view the complete Conga Comic collection at https://congacomic.github.io/