#2464 Warn if tap that uses `ACTIVATE_VERSION` is used with target that doesn't support it Issue created by MeltyBot Migrated from GitLab: https://gitlab.com/meltano/meltano/-/issues/2509 Originally created by @DouweM on 2021-01-12 224950 ---

ACTIVATE_VERSION

is an experimental and mostly-undocumented Singer feature that is nonetheless used/supported by a few popular taps and targets: https://gitlab.com/meltano/meltano/-/issues/2508 If a target doesn't understand the

ACTIVATE_VERSION

messages output by a tap, it may error out, or silently ignore the message and end up with duplicated records. We can help the user debug this. This will require us to start tracking in

discovery.yml

whether taps and targets support this feature. meltano/meltano