OK Wallets v4.0.0.1-core v4 Utopia

OK Wallets v4.0.0.1 core

codename: Utopia

non-mandatory

Utopia (/juːˈtoʊpiə/ yoo-TOH-pee-ə) is an imagined ideal community or society that possesses highly desirable or nearly perfect qualities. Utopian ideals often place emphasis on egalitarian principles of equality in economics, government and justice, though by no means exclusively, with the method and structure of proposed implementation varying based on ideology.

Released: October 5th 2016
Change List - v4.0.0.1-core v4 Utopia

• Upgrade compatibility for new versions of upnp (sec / comp)
• Checkpoints (security / maint)
• Code cleanup (graphical interface / maint)
• Updated repository desc. (information)
• New release for Ubuntu 16

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Instructions for previous clients:

• Close your OKCash client, replace it with the v4.0.0.1 Okcash files , open your client, done.

(Windows users can use the easy installer to install latest update on top of the old version)

OK Wallets v4.0.0.0-core v4 Utopia

OK Wallets v4.0.0.0 core

codename: Utopia

Mandatory

Utopia (/juːˈtoʊpiə/ yoo-TOH-pee-ə) is an imagined ideal community or society that possesses highly desirable or nearly perfect qualities. Utopian ideals often place emphasis on egalitarian principles of equality in economics, government and justice, though by no means exclusively, with the method and structure of proposed implementation varying based on ideology.

Released: July 9th 2016
Change List - v4.0.0.0-core v4 Utopia

• Implementation of LTSS (Long Term Sustainable Staking).(security/functionality)
• Last OK coins to be mined around: Year 2148
• Protocol upgrade (security)
• Checkpoints (security)
• Design update (design/speed)
• arm-64 aarch64 compatibility (security/functionality)
• code improvements (resources/speed)
• Block explorer update (resources/tx info)

LTSS: https://bitcointalk.org/index.php?topic=1028368.msg15436603#msg15436603 http://okcashtalk.org/index.php/topic,16.0.html

The first cryptocurrency for Pine64+ !

• New Okcash wallet for Pine64+ release

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Instructions for previous clients:

• Close your OKCash client, replace it with the v4.0.0.0 , open your client, done.

OK Wallets v3.0.0.4-core

OK Wallets v3.0.0.4

Mandatory

Released: December 6th 2015
Change List - v3.0.0.4-core

• Coinstake fix for the POS change.(security/functionality)
• Protocol upgrade (security)
• Disconnect from old clients (security)
• POS changed from 69% to 20% for second year at block 531,257

Instructions for v3.0.0.4 clients:

• Close your OKCash wallet, replace it with the v3.0.0.4 , open your client, done.

OK Wallets v3.0.0.3-core

OK Wallets v3.0.0.3

Released: December 1st 2015
Change List - v3.0.0.3-core

Based on community/users feedback the anon tokens system is getting removed
to comply with most businesses structures and to expand and develop new social features.

• Anon token system removed from UI (Users feedback/Social improvement)
• Correct descriptions (fix)
• Protocol upgrade (security)
• Renaming for Private Messages and texts for non crypto users. (design improvement)
• Disconnect from old clients (security)

Instructions for v3.0.0.2 clients:

• Close your OKCash wallet, replace it with the v3.0.0.3 , open your client, done.

Instructions for v3.0.0.1 and older clients:

• Close your OKCash wallet, replace it with the v3.0.0.3 , open your client, if it presents any issue download the OKbootstrap and resync http://bit.ly/OKchain
• Mandatory for wallets older than v3.0.0.1
• Regular Highly recommended for v3.0.0.2

OK Wallets v3.0.0.2-core

OK Wallets v3.0.0.2

Mandatory Update

Released: November 30th 2015
Change List - v3.0.0.2-core

• Indentation (fix)
• Object (fix)
• Protocol upgrade (security)
• New checkpoint for block 500000. (security)
• POS change to 20% moved 10,000 blocks to block 531,257 (upgrade)

Instructions:
Just upgrade your client and start, it should fix automatically, If continue to be stuck after some time, download the OKbootstrap and resync http://bit.ly/OKchain

OK Wallets v3.0.0.1-rememberthe5th

OK Wallets v3.0.0.1

codename: "Remember the 5th of November"

Released: November 3rd 2015
Change List - v3.0.0.1-Rememberthe5th

• Anonymous Privacy System Started without issues at block: 470,000. (New Features/Privacy)
• Encrypted Message system avatar updated for theme. (Design/5thNovTheme)
• UI and Icons Upgrade. (Design)
• Protocol Upgrade (Security)
• New Checkpoints (Security)

Annual % stake change from 69% to 20% at block: 521,257
POS v2 kicks in at block: 575,000

(Updated Chain) Bootstrap for new users: http://bit.ly/OKbootstrap
Unzip and place it into the okcash data folder before starting the wallet.
(It will take around 3 hours for the wallet to reindex the blocks from the bootstrap,
it may seem unresponsive but give it some time and it will finish its work loading the chain)

OK Wallets v3.0.0.0-core v3

OK Wallets v3.0.0.0 - Mandatory

codename: "core v3"

Released: September 23rd 2015
Change List - v3.0.0.0-core-v3

mandatory update - soon all previous clients will stop to be accepted by the network
(your coins will be safe but you wont be able to use them until you update to a v3 version).

• POS v2 system upgrade. (New Features/Security)
• Anon System implementation. (New Features/Privacy)
• HTML5 Wallet (New Features/Design/Tech)
• BIP 32 (New Features/Security/HD wallets)
• Encrypted Messages System v2 upgrade. (Security/Design)
• Transition from "scrypt" to "SHA256" algorithm. (Performance/Security)
• In wallet OKChain Explorer. (New Features/Tools)
• Peers; Nodes List and details in Debug Window. (New Features/Tools)
• In wallet Updates. (Latest Community updates shared at updates.okcash.co)
• Stake confirmations lowered to 64 (Improvements/Stake)
• RewindChain command added. (New Features/Tools)
• Bugs Fix. (Security/Performance)

Anon Privacy System Starts at block: 470,000
Annual % stake change at block: 521,257
POS v2 kicks in at block: 575,000

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*New users need no extra steps.
Just download and start your new OK wallet to start using the software.

*Users with previous wallets.
How to update:

This update requires a change in the database structure to open the new features, needs to resync.
(All your coins are safe of course)

1.- Delete old okcash-qt.exe clients and download the new okcash v3 client. ( Zip or Installer)

2.- Go to your okcash data folder at:

Windows:
C:\Users\UserName\Appdata\Roaming\OKCash

Mac OS:
~/Library/Application Support/OKCash/

Linux:
~/.okcash/

Make a backup of your "wallet.dat" file, and delete all the other files in this folder except for "wallet.dat"

3.- Install or unzip your new okcash v3 client and it will start to sync.

4.- For faster sync you can download a bootstrap file at:
http://bit.ly/OKbootstrap
unzip and place it into the okcash data folder before starting the v3 client.
(It will take around 2 hours for the wallet to reindex the blocks from the bootstrap, it may seem unresponsive but give it some time and it will finish its work loading the chain)

v3 Mac OSX clients to be released in the coming days*

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More Info on the new Features and Thanks to its creators:

Info/References:

POS v2 upgrade from Blackcoin Tech. Secure and improved PoS System.

Buterin, Vitalik. "What Proof of Stake Is And Why It Matters"
https://bitcoinmagazine.com/6528/

King, Sunny. "PPCoin: Peer-to-Peer Crypto-Currency with Proof-of-Stake"
http://www.peercoin.net/assets/paper/peercoin-paper.pdf

Vasin, Pavel. "BlackCoin’s Proof-of-Stake Protocol v2"
http://www.blackcoin.co/blackcoin-pos-protocol-v2-whitepaper.pdf

Anon upgrade from Shadowcoin Tech. Ring Signatures like Monero/CryptoNote and others with different implementation and optional Anon transactions. (Anon Tokens).

Tsang, Wei. "Short Linkable Ring Signatures for E-voting, E-cash and Attestation"
http://eprint.iacr.org/2004/281.pdf

Franklin, Zhang. "Unique Ring Signatures"
http://csiflabs.cs.ucdavis.edu/~hbzhang/romring.pdf

Rynomster, Tecnovert."Zero Knowledge via Traceable Ring Signatures"
http://shadow.cash/downloads/shadowcash-anon.pdf

HTML5 upgrade from Shadowcoin Tech. In wallet HTML5 Framework.

HTML5 is a markup language used for structuring and presenting content on the World Wide Web. It was finalized, and published, on 28 October 2014 by the World Wide Web Consortium (W3C). This is the fifth revision of the HTML standard since the inception of the World Wide Web. The previous version, HTML 4, was standardized in 1997.

Its core aims are to improve the language with support for the latest multimedia while keeping it easily readable by humans and consistently understood by computers and devices (web browsers, parsers, etc.). HTML5 is intended to subsume not only HTML 4, but also XHTML 1 and DOM Level 2 HTML.

HTML5 wiki and References
https://en.wikipedia.org/wiki/HTML5

BIP32 upgrade from Bitcoin Tech. Hierarchical Deterministic (HD) key creation and transfer protocol (BIP32).

A deterministic wallet is a system of deriving keys from a single starting point known as a seed. The seed allows a user to easily back up and restore a wallet without needing any other information and can in some cases allow the creation of public addresses without the knowledge of the private key.

Deterministic Wallets
https://en.bitcoin.it/wiki/Deterministic_wallet

OK Wallets v2.0.0.2-core

OK Wallets v2.0.0.2

codename: "Core"

Released: September 9th 2015
Change List - v2.0.0.2-core

• POS system Update. (Security)
• Protocol Upgrade. (Security)

OK Wallets v2.0.0.1-core

OK Wallets v2.0.0.1

codename: "Core"

Released: September 1st 2015
Change List - v2.0.0.1-core

• Added New Checkpoints. (Security)
• Added New Stake Modifier Checkpoints. (Security)
• Redesign based on users feedback.
• New Logos with improved Resolution.
• Icons Fix.

edit: updated download files to v2.0.0.2 for security.

OK Wallets v2.0.0.0

Okcash Wallets v2.0.0.0

codename: "Stars" V

Released: April 17th 2015
Change List - v2.0.0.0-stars

• Added New Checkpoints. (Security)
• Added New Stake Modifier Checkpoints. (Security)
• Custom (Redesign)
• Grammatical fixes
• Protocol Update
• Client ident update
• Full Re Branding