# Release Notes: 2013-01-08 Get ready, because we've rolled out some major (and majorly exciting) new features for 2013! * You can now deploy **your very own ThousandEyes agents** on whatever machine you like! The ThousandEyes agent is available as either an installable package or a virtual appliance. See the new [agent settings](https://app.thousandeyes.com/agent-settings) page for instructions. ![](/files/-M5xtXGLMbm-d1rRR5kx) * Our new **usage-based accounting** system gives you far more flexibility in the types of tests you can create. Instead of having a fixed limit per test type, you now have a single, monthly usage allowance which can be applied towards any test type. Need a few extra tests today to monitor a major deployment or provider change? No problem! Just disable or delete them when you're done. As long as you don't exceed your monthly usage allowance, it's all included in your current price. And in case you do need a few more tests beyond your monthly allowance, go ahead -- you can just pay as you go for whatever extra you use. Wondering what your usage will be? Try our new [billing calculator](https://app.thousandeyes.com/calculator). ![](/files/-M5xtXGTh3Dm9IsUX7km) * You can now see **headers from HTTP responses** in the Basic HTTP view. * We now support **basic HTTP authentication for Page Load and Transaction tests**, too. (Not just Basic HTTP tests.) * **Full IPv6 support** for all agent-based tests. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.thousandeyes.com/archived-release-notes/2013/2013-01-08-release-notes.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.