Updates (06/22/2016):
New wallet 1.3.0rc1 available:
Download link: http://coinmagi.org/bin/m-wallet-1.3.0rc1/
(I'll fulfill OSX compiling, TBD)
Source: https://github.com/magi-project/magi/tree/1.3.0rc
Block chain: http://coinmagi.org/bin/block-chain/
Release notes: http://coinmagi.org/bin/release-notes.md
Changelog:
# Changed database for storing transaction and block indices from Berkeley DB to LevelDB;
# Enabled block hash storing in storage and loaded directly from disk;
# Fixed "Checkpoint is too old" warning
# PoS stake splitting and combining features, which can be set by stakesplitthreshold=VALUE and stakecombinethreshold VALUE in magi.conf, or by RPC commands: setstakesplitthreshold and setstakecombinethreshold; RPC commands getstakesplitthreshold and getstakecombinethreshold to show their current values;
# Added price information on Qt Overviewpage;
# Qt wallet logo change and GUI improvements;
# Merge pull request of version check updates by feldenthorne; fixed automatic version check including test/rc versions.
# Merge pull request of adding total balance in "Transactions" page by lightsplasher;
Thanks to feldenthorne and lightsplasher for the contributions to the code base and sorry for the long-delayed merge. I am supposed to respond to the pull request significantly fast from now on. If anyone is able to make changes to source, please.
Note 1:
We are changing to leveldb for block index storing. For this purpose, we suggest use of the new wallet in limited occasions. This is the reason of the RC version, though I didn't see any issue in my own side. At this moment, I DON'T recommend using the wallet in your minings, pool server, or exchanges. In my estimate about two weeks long without having any issues coming up, we will roll out a stable release.
Note 2:
Due to change to leveldb data, you have to get rid of the old version of block data before using the new client. To save the time, I have pulled out an up-to-date block chain which can be downloaded from here: http://coinmagi.org/bin/block-chain/
A concern of stake splitting & combing in original ppc design since it involves security concerns:
https://github.com/magi-project/magi/blob/1.3.0rc/src/wallet.cpp#L1595
Update procedure:
1) Backup wallet.dat to a safe place;
2) Delete everything under the Magi or .magi folder except wallet.dat;
3) Download block chain from here http://coinmagi.org/bin/block-chain/ and unzip the fille;
4) Unzip all of the stuffs under the folder m-blockchain into Magi or .magi;
5) Start up the new wallet.
At the last minute when I compiled the wallet in windows, the price info on the new wallet in Windows seems not working, though it all worked out in my linux machine; we'll fix it in the final version.
I guess this is it.
I'll talk more most likely tomorrow night.
New wallet 1.3.0rc1 available:
Download link: http://coinmagi.org/bin/m-wallet-1.3.0rc1/
(I'll fulfill OSX compiling, TBD)
Source: https://github.com/magi-project/magi/tree/1.3.0rc
Block chain: http://coinmagi.org/bin/block-chain/
Release notes: http://coinmagi.org/bin/release-notes.md
Changelog:
# Changed database for storing transaction and block indices from Berkeley DB to LevelDB;
# Enabled block hash storing in storage and loaded directly from disk;
# Fixed "Checkpoint is too old" warning
# PoS stake splitting and combining features, which can be set by stakesplitthreshold=VALUE and stakecombinethreshold VALUE in magi.conf, or by RPC commands: setstakesplitthreshold and setstakecombinethreshold; RPC commands getstakesplitthreshold and getstakecombinethreshold to show their current values;
# Added price information on Qt Overviewpage;
# Qt wallet logo change and GUI improvements;
# Merge pull request of version check updates by feldenthorne; fixed automatic version check including test/rc versions.
# Merge pull request of adding total balance in "Transactions" page by lightsplasher;
Thanks to feldenthorne and lightsplasher for the contributions to the code base and sorry for the long-delayed merge. I am supposed to respond to the pull request significantly fast from now on. If anyone is able to make changes to source, please.
Note 1:
We are changing to leveldb for block index storing. For this purpose, we suggest use of the new wallet in limited occasions. This is the reason of the RC version, though I didn't see any issue in my own side. At this moment, I DON'T recommend using the wallet in your minings, pool server, or exchanges. In my estimate about two weeks long without having any issues coming up, we will roll out a stable release.
Note 2:
Due to change to leveldb data, you have to get rid of the old version of block data before using the new client. To save the time, I have pulled out an up-to-date block chain which can be downloaded from here: http://coinmagi.org/bin/block-chain/
A concern of stake splitting & combing in original ppc design since it involves security concerns:
https://github.com/magi-project/magi/blob/1.3.0rc/src/wallet.cpp#L1595
Code:
// The original design prevents stakes having the same parent transaction from combining
// which somehow reads as encouraging splitting (improve security);
// This mechanism is to be disabled in Magi since combining won't cause security concern
/* Splitting is only enforced at wallet, not by PoS protocol as well as consensus over network.
* Original PPCoin design encourages splitting as per "Lower coinstake combine threshold to
* improve security", which can be understood by the fact that in general PoS, with a large
* number of coins in stake comes greater chance of (PoS) mining blocks. This is not going to
* happen in Magi. Also, hardening nStakeCombineThreshold is impractical since an advanced user
* can easilly make a change to that and rebuild a wallet. The change to nStakeCombineThreshold
* should be available externally, e.g., RPC command, magi.conf configuration file.
** Magi, for optimum staking, nStakeCombineThreshold should be used in combination with nStakeSplitThreshold.*/
You should use nStakeCombineThreshold along with nStakeSplitThreshold for best results. The optimum threshold is neither a random number nor as large as possible; it should be an appropriate value, say 500 XMG, according to MAGI's PoS protocol. // which somehow reads as encouraging splitting (improve security);
// This mechanism is to be disabled in Magi since combining won't cause security concern
/* Splitting is only enforced at wallet, not by PoS protocol as well as consensus over network.
* Original PPCoin design encourages splitting as per "Lower coinstake combine threshold to
* improve security", which can be understood by the fact that in general PoS, with a large
* number of coins in stake comes greater chance of (PoS) mining blocks. This is not going to
* happen in Magi. Also, hardening nStakeCombineThreshold is impractical since an advanced user
* can easilly make a change to that and rebuild a wallet. The change to nStakeCombineThreshold
* should be available externally, e.g., RPC command, magi.conf configuration file.
** Magi, for optimum staking, nStakeCombineThreshold should be used in combination with nStakeSplitThreshold.*/
Update procedure:
1) Backup wallet.dat to a safe place;
2) Delete everything under the Magi or .magi folder except wallet.dat;
3) Download block chain from here http://coinmagi.org/bin/block-chain/ and unzip the fille;
4) Unzip all of the stuffs under the folder m-blockchain into Magi or .magi;
5) Start up the new wallet.
At the last minute when I compiled the wallet in windows, the price info on the new wallet in Windows seems not working, though it all worked out in my linux machine; we'll fix it in the final version.
I guess this is it.
I'll talk more most likely tomorrow night.
Great to see a brand new release of the RC version of the Magi wallet! Hopefully, it will only be a matter of time before we could get our hands in a stable version of the wallet. In the meantime, I will test this on my Debian VPS and see if everything works fine. It would be pretty amazing to see the speed increase (which I think it has been implemented in the new release) as it will be a great way to get quick access to the GUI of the wallet. Can't wait for more new and exciting stuff like these! Proof of Interest IV here we come.
go Magi! yay 
