DJ December 2019 about decred-news

[xaur]

Thanks @nottrunner, added the Feb event. I dropped the Jan 7 one because this DJ issue will be published afte Jan 7, making the event no longer an "upcoming" one. It will be included in Attended in January.

[xaur]

Thanks all for another great release!

[nottrunner]

Add to upcoming events:

• Jan 7 - Digital Money forum at CES - Las Vegas, Nevada. @akinsawyerr will speak on a panel on the future of money

• Feb 4 - 6 - Africa Tech Summit - Kigali, Rwanda. @akinsawyerr will be a speaker in the Money & Blockchain Summit

[xaur]

Dev

dcrd

Advanced config option added https://github.com/decred/dcrd/pull/2023 to enable prevention of unsynchronized mining on testnet.

As the description says, this is an advanced option for developers. I usually drop these, unless there is a good reason to include them.

Deprecated TorLookupIP replaced https://github.com/decred/dcrd/pull/2021 with TorLookupIPContext.

Small internal refactoring to add contexts (which allow cancellation of async processes). Dropping.

main, dcrutil and hdkeychain modules updated https://github.com/decred/dcrd/pull/2016 to use latest base58 module.

Minor internal dependency mgmt. Dropping.

dcrutil support added https://github.com/decred/dcrd/pull/2018 for calling the new auditreuse RPC.

We reported this feature in dcrwallet in 201911. Whoever needs this feature will need to build from source I think, until v1.6. Since this was reported earlier and is for advanced users, dropping.

The blockchain module also modified to accept hash https://github.com/decred/dcrd/pull/2022 in next work diff calcs. This is part of an overall effort to make the blockchain module more explicit and less reliant on the current state.

Good change but after some pondering I figured it is not very notable. Dropping.

Key arrays replaced https://github.com/decred/dcrd/pull/2015 with maps with string keys. Memory usage should be significantly reduced following this change for dcrd instances serving dcrwallet clients in RPC syncing mode with very many addresses.

This was not merged and was replaced with PR 2027, as noted in comments. It is worth to mention that it fixes a memory leak.

multi: Address a bunch of lint issues: https://github.com/decred/dcrd/pull/2028

Nice but not notable, dropping.

rpcwebsocket: Use nonblocking messages and ntfns: https://github.com/decred/dcrd/pull/2026

Looks like a small multitasking fix. Dropping.

https://github.com/decred/dcrd/pull/2008

300-line refactoring with further decoupling. Adding.

https://github.com/decred/dcrd/pull/2011

Clever hack of "tech goodness" category. Also touches consensus code. Adding.

dcrwallet

Small or internal fixes and dependency mgmt, dropping:

• Dependencies updated for start of 1.6 development. https://github.com/decred/dcrwallet/pull/1628
• apply cleanAndExpandPath() on CSPPServer.ca option: https://github.com/decred/dcrwallet/pull/1632
• Update to recently-tagged JSON-RPC types package: https://github.com/decred/dcrwallet/pull/1629
• Remove pseudo-versions from main module: https://github.com/decred/dcrwallet/pull/1627
• Prepare walletseed/v1.0.3 with pgpwordlist 1.0.1: https://github.com/decred/dcrwallet/pull/1626
• Silence ticketbuyer insufficient balance errors: https://github.com/decred/dcrwallet/pull/1624

Decrediton

Small or internal fixes, dropping:

• Protocol Buffers updated https://github.com/decred/decrediton/pull/2349 to v3.4.0.

DcrInput component now only requires a single prop ('amount'). Having to track both 'value' and 'amount' as consumer of DcrInput was cumbersome and led to some mistakes such as in the ticket buyer input that specifies the balance to maintain.

Internal refactoring, dropping.

A bunch of individual bugs grouped in "bug fixes".

dcrstakepool

Too minor items this time, dropping the section.

dcrlnd

Dropping already mentioned:

• github: add docker build job: https://github.com/decred/dcrlnd/pull/67

Dropping items that have no work in December or are not merged:

• Verify chainntfs in case of disapproved blocks: https://github.com/decred/dcrlnd/issues/69
• Network command line switches for dcrlnd and dcrlncli: https://github.com/decred/dcrlnd/pull/72

dcrandroid

Group in "bug fixes", dropping:

• multi: verify dialog instance existence before creating a new instance: https://github.com/decred/dcrandroid/pull/417
• text fields disabled https://github.com/decred/dcrandroid/pull/419 when processing

[xaur]

Network

I adjusted the numbers a bit. On dcrdata I used higher resolution data by changing Bin from Day to Blocks and zooming in. On charts.dcr.farm I used time range of 2019-12-01 00:00 till 2020-01-01 00:00 UTC. Note that it displays time in the time zone reported by the browser. To exclude ambiguity you can check the from and to params in the URL that have the Unix time.