We stick to the descriptions of [our initial roadmap](https://polkadot.polkassembly.io/post/111). So far the design is still valid. However, based on our experience after M8.1 and M8.2 we must admit that we underestimated M8.3. Especially the test fixtures are more laborsome than we anticipated. We can still not use `cargo test` for our SGX enclave code, so we have to wrap everything with custom commands and mocking is only partially possible leading to more end2end tests which are harder to debug. Moreover, we became aware of [#208](https://github.com/scs/substraTEE-worker/issues/208) which needs to be fixed.

#### cost and timeline

Our initial estimate for M8.3 was CHF 39'200.- but we have to adjust to **48'400 CHF** (+23%).

We currently have 1.3 FTE reserved for this and intend to **deliver within 9 weeks** after this motion passes.

DOT moving average MA(25)@1day today is 32.0 USDT on binance
USDT is 0.9302 CHF according to coinmarketcap

along previous proposals, we'd add a 10% premium for volatility risk.

We therefore request 48400*1.1/32.0/0.9302 = **1788.59 DOT**

#### reviews 

external reviews of our previous milestones M8.1 and M8.2: [review1](https://docs.google.com/spreadsheets/d/1EZgKLt1SbOsXwGi2NNnEAhjdyTrEUOttC__k4D6dVwg/edit#gid=1901352075), [review2](https://docs.google.com/spreadsheets/d/1sC1Jxy0mKSjUsiPfjc_SO3rwsyjUwV1jT4VCVJbrdrI/edit#gid=1534875011) 

please [tip](https://polkadot.polkassembly.io/tip/0xc5f28e61c17ad452006e6150532a60c95c3936e2046b9b4d38269bd518b2b8f5) & [tip](https://polkadot.polkassembly.io/tip/0xe48b661e5c97caf176e5ac401dc71c01922a3adfb69f6d0378ed103ced0c54c6) the reviewers



 Approve a proposal. At a later time, the proposal will be allocated to the beneficiary
 and the original deposit will be returned.

 May only be called from `T::ApproveOrigin`.

 # <weight>
 - Complexity: O(1).
 - DbReads: `Proposals`, `Approvals`
 - DbWrite: `Approvals`
 # </weight>

:
- M8.3 estimated cost increased by 23% to 48400 CHF
- The project target is 9 weeks delivery
- The rate allocation is 1788.59 DOT
- Reviews for M8.1 & M8.2 available for reference

#68 SubstraTEE Scalability M8.3