HCP adds additional Stellar keywords to each new HCP version. These new keywords might cause compatablity issues where these reserved words and symbols are used in existing scripts. Be sure to check the Stellar Language Quick Reference for new and changed Stellar keywords.

HCP 1.5.0 adds match to the Stellar lanaguage which introduces the following new reserved keywords and symbols:

match, default, {, }, ‘=>’

You must modify any Stellar expressions that use these keywords not in quotes.