0.4.3 minor release planned for this weekend. Changes announce:

• GBT speedup up to 10 times, to make stratum pools more reliable under high tx/s rates;
• Stake generation statistics (available coins amount, current stake generation power) will be available through RPC;
• Coinstake inputs adding policy will be a little more aggressive for some cases.

0.4.3 will be compatible with 0.4.2 in terms of database format and protocol rules.

StratumServer is updated and works OK

https://github.com/CryptoManiac/stratum-mining
https://bitcointalk.org/index.php?topic=201230.msg2234622#msg2234622

0.4.2 update is ready and published.

It includes a few changes in addition to new PoS ROI calculation algorithm, which was implemented in 0.4.1:

• Fix for lk_max_locks exhaustion problem, more info is available here. It will become active since 20 Aug 2013;
• 27 bits PoS target limit will become active since 20 Jul 2013.

Protocol update conditions:

• 0.4.1 and 0.4.2 will be compatible with 0.3.5/0.4.0 until 20 June 2013.
• 0.4.2 will be compatible with 0.4.1 until 20 July 2013.

An optimal way is update to 0.4.2 before 20 June 2013.

Important changes are listed below.

• Dynamic PoS interest. Now it’s a function of PoS difficulty, nRewardCoinYear = 1 / (posdiff ^ 1/6). It can have values from 100% to 1%;
• Checkpoints ignore option added, disabled by default;
• Bug fix for coinstake transactions display in QT client;
• Bug fix for AvailableCoins function, prevents immature coins usage;
• Mac OS X compatibility issues resolved, from now we publishing official Mac OS X 64 bit builds also;
• New genesis block for testnet.

Update should be performed before 20 June 2013.

Source tree is updated.
https://github.com/CryptoManiac/novacoin/tree/next

Win32 binaries of updated testing branch:
https://sourceforge.net/projects/novacoin/files/novacoin-next.zip/download

Includes QT and console version.

This update adds missing RPC calls (getworkex and pubkeys management merged from 0.3.5).

Version 0.3.5 builds published. Changes list:

• Blocks v3 lock-in since height #14060;
• Hardened checkpoint at #14189;
• bnProofOfStakeLimit will switch to 256 * diff-1 target starting since height #15000;

You should remove blkindex.dat and blk0001.dat before starting new client, otherwise you will get assert exception.

Sources:
https://github.com/CryptoManiac/novacoin

Builds and blockchain snapshot:
https://sourceforge.net/p/novacoin/files/

NVC P2Pool 11.4.1

• Fixed inaccuracy with wallet version checking.

Sources:
https://github.com/CryptoManiac/p2pool

Win32 py2exe build and sources snapshot:
https://sourceforge.net/p/novacoin/files/

• NVC/USD pair planned on btc-e.
• New hotfix release with changed bnProofOfStakeLimit and minor fixes will be published today.
• Next major release will be based on bitcoin 0.8 codebase, we stopped work with 0.7 codebase due to serious issue in upstream. It’s planned at the end of April.

0.3.4 hotfix build is ready. It adds new hardened checkpoint at block #13560.

If you don’t have problem, which is described below, you can ignore this. But anyway, it’s recommended to apply this update, especially if you running mining pool or another service. It will prevent downtime possibility.

If you see “Invalid checkpoint found” message and your client switches to safe mode, you need to install this update and re-download the blockchain. By the way, with win32 client you don’t need sync og the whole blockchain, you can use files from the blockchain snapshot.

Win32 build:
http://sourceforge.net/projects/novacoin/files/

Sources tree:
https://github.com/CryptoManiac/novacoin

P2Pool is updated to support v3 blocks:

Sources tree:
https://github.com/CryptoManiac/p2pool

Win32 py2exe:
http://sourceforge.net/projects/novacoin/files/p2pool_win32_14f.zip/download

Only ~ 200 blocks left to v3 lock-in.