UPGRADE.md

Upgrade notes

3.x to 4.x

• Do not enable store_join_tokens_as_tags as that will corrupt the cluster.
• daemon_ssh=false and daemon_tls=true will keep the same behaviour, but it is recommended that the defaults are used for for new clusters.

4.0.x to 4.1.x

• If packages are customized, haveged is now required.

4.x to 5.x

FYI at time of this writing, it is NOT recommended that users upgrade to 5.x unless they need to due to usability bugs in Terraform and the AWS provider. Workarounds are provided to known issues. It is best to wait for 0.13.1

• Terraform 0.13 is now required. Perform a terraform 0.13ugprade and terraform init -upgrade to update your Terraform files before using.
• aws_availability_zones will always have a diff
• terraform state replace-provider -- -/aws hashicorp/aws generally helps address existing state issues terraform#25819
• State files may need to be modified using pull and push to remove resource state attributes that are no longer in the schema that was fixed for 0.13.1

5.x to 6.x

• Remove store_join_tokens_as_tags, the setting is no longer supported
• Remove daemon_count, the setting is no longer supported