At the moment, there is no specific version policy in terms of support - uri-template-system is currently "best effort", and use at your own risk. However, this is not to say that I don't care about security - I do, and if there's anything which is a concern please get in touch. In particular, about...
Please open an issue if possible, or if you're concerned about public disclosure, please email [email protected] - I will respond ASAP and set up a channel to discuss the issue in detail.