Features

• new while loops #347
• new Exists(var) built-in #348
• add string.replace(), .replace_all(), .replace_regex() #353
• new fold endpoint to package multiple flows into a single flow #354
• support += and -= operators and string concatenation with "ab" + "cd" #346

Improvements

• postgresql: only run migrations on server launch #350
• add Time().add()/.sub() #352
• add flow context in _metadata as _metadata._context.current_flow / .previous_flow / .current_step / .previous_step #345
• improve DISABLE_SSL_VERIFY compatibility with ureq #344
• add support for += and "string"+"string" notations #346

Bugfixes

• allow multiple postfix notation (i.e !!var) #346
• fix unicode escape in strings #349
• fix foreach index value when foreach contains hold #343