InDesign CC 2019 is supported by the following updates.
If you don’t have a Personal Activation Code or Workgroup Activation Code, you will probably need to purchase a new code to activate. Without activation, the following downloads will give you 20 days to try out the software.
More info about activation here: https://rorohiko.com/licensing
LayerLifter 1.0.2 (Freebie)
LikeFindsLike 1.0.3 (Freebie)
Text Stitch 1.0.7 (Freebie)