December 6th
Hello fellow Zebras! Another week, another update on Zcashd deprecation!
NU6 work is still around. This is the updated chart from last week
Status of wallet NU6 support
| Wallet | Ready on NU6 | Same day or 1 day | Nov 27th | December 5th |
|---|---|---|---|---|
| Edge |  |
|||
| Exodus |  |
 (FIX IN PROGRESS) |
release in progress |
|
| eZcash | |
|||
| NightHawk | |
|
||
| Ledger Transparent Zcash | |
(FIX IN PROGRESS) |
||
| Ledger Shielded Zcash | |
|
||
| Unstoppable | |
|
||
| Trezor | |
|
||
| Trust | |
(FIX IN PROGRESS) |
release in progress |
|
| Ywallet | |
|
||
| Zingo | |
|
||
| Zashi | |
A note on Ledger Live issues
Yesterday, developers from Zondax, Zingo, ECC, members of ZCG and myself got together for a code walkthrough of the Shielded Zcash Ledger application code and its integration beyond the Zecwallet fork that Zondax is maintaining. Half of the meeting was dedicated to discuss the ongoing NU6 problem that the transparent Zcash app authored by Ledger for their Ledger live application and how we could contribute to help them solve the issue.
@ainhoa-zondax and Emmanuel from Zondax confirmed that the Shielded Zcash application does not have the problems that the one developed by Ledger has. There’s a tutorial on how to unlock funds from a Ledger device. Warning: It’s not easy and requires that users spend a considerable amount of time building the Zecwallet Application.
Note: I have built the application myself but only succeeded when using x86-64 based processors, that is AMD or Intel. If you have another kind of processor architecture it will probably fail to build.
Outreach (@pili @decentralistdan @pacu):
- Status: on track
NU6 upgrade still takes a bit of the outreach time. Pili is looking to get in touch with people from Poloniex. If you have a contact to provide please contact us.
Zebra
- Status: on track
No substantial changes from last week. The Zebra team has been working on RPC method development and also on NU6 derived fixes.
Important bug fixes on RPC return values and also important refactoring in critical RPCs such as getblock which is used by all known clients.
Zaino (ZingoLabs)
- status: on track
Project Board
Zaino devs discovered a bug on the testing tooling of Zebra that they rely on for integration testing. This is a major blocker for development since they can’t fully test what they code. ZF and Zaino devs are getting together to fix this problem and continue improving developer experience.
In-Memory backend wrap up
- status: on track
Willem from Chainsafe started work on this upstream collaboration and Kris Nuttycombe from ECC has provided feedback on his review Add serde derives to primitive types behind feature flag by willemolding · Pull Request #1627 · zcash/librustzcash · GitHub
I started reviewing this Pull Request and found some improvement opportunities in terms of documentations and API ergonomics. After ECC folks are done with some pressing matters regarding Keystone integration they’ll start reviewing this too (around next week)
Zcashd Wallet CLI
- Status: on track
This is scheduled to be completed by the end of January! This timeline is TIGHT!
tracking work on this repository.
ECC core engineers are working on Keystone integration items and looking for developers that can contribute to the RPC support of the cli wallet that will be hosted on github.com/zcash/zcash. Please get in touch with me or @pili if you are interested in contributing. This is the spreadsheet with the RPC methods that the zcash-cli would tentatively need
Wallet Export format
- Status: Proposal ready, work started
Kudos to Dorian from ZingoLabs for starting a software archaeology work on Zcashd wallet.dat formats along the years. See https://github.com/zcash/zcash/issues/6873
This is super important to write parsers that can read an old wallet.dat file and put it to good use in a newer wallet.
Also, Christopher from Blockchain Commons drafted a proposal for “ZeWiF” with help of Zingo folks and myself. ZCG has brainstormed on it and they are waiting on further feedback from wallet specialists at ECC. We will coordinate a specific meeting with the involved parties to discuss feedback on the proposal and define steps forward.
Have a Fun Friday and a relaxing and repairing weekend.