Splice 0.5.13 Notice: Scan Script Deprecated

:yellow_alert: Attention :yellow_alert:

Splice 0.5.13, which will be available on DevNet next week, deprecates the sample python script, scan_txlog.py, that has until now provided a reference for how to download and parse the Scan /updates stream. This script will no longer be maintained, and will be removed in a future release. Developers interested in understanding how to parse transactions from history should refer to the documentation for Reading and parsing transaction history involving Token Standard contracts.

DAML MODEL UPGRADE ISSUE impacting PQS users

The following DAML package versions were introduced by Splice 0.5.11, and are effective on DevNet as of this week.

name version

amulet 0.1.16

amuletNameService 0.1.17

dsoGovernance 0.1.22

validatorLifecycle 0.1.6

wallet 0.1.17

walletPayments 0.1.16

These Daml model versions are currently scheduled to go live on TestNet (March 3rd) & MainNet (March 10th).

However, Splice 0.5.11 deployments this week on TestNet have exposed an issue where in certain cases, "uploaded but not-yet vetted" packages break some assumptions in PQS. In order to avoid these issues, validator operators that use PQS are advised, as part of the 0.5.11 deployment, to make the following configuration changes:

• in k8s, set the Helm value on the validator app maxVettingDelay to 0m
• in docker-compose, add to the validator container an environment variable  ADDITIONAL_CONFIG_MAX_VETTING_DELAY with value canton.validator-apps.validator_backend.max-vetting-delay = 0m

@Dev Announcements @Canton Builder