# EPF6 - Week 9 Updates ## tl;dr - Opened [the very first PR](https://github.com/OffchainLabs/prysm/pull/15588) for initializing the SSZ-QL package. ## Details After confirming the task list from my mentors, I opened a new [Github Issue](https://github.com/OffchainLabs/prysm/issues/15587) for tracking the progress. The issue consists of several subtasks, and these will be built upon the new package located in `encoding/ssz/query`. I mostly moved my previous code in [PoC](https://github.com/syjn99/prysm/pull/1), including some cosmetic changes like documenting and refactoring to make reviewing much easier. Also I'd like to cap the scope of my first PR, so I only included the functionality for **fixed-size types**. Variable-sized types will be handled later on in subsequent PRs. Now [PR](https://github.com/OffchainLabs/prysm/pull/15588) is open and ready for review, I'm currently waiting on the initial comments from the mentors. This week I'm going to investigate one repository, [`pk910/dynamic-ssz`](https://github.com/pk910/dynamic-ssz) as 1) it is written in Go and 2) actively updated by [pk910](https://github.com/pk910) from ethPandaOps. I expect there's lots of things to learn from his code.