This release includes some additional API from bitcoin, in addition to protocol enhancement, which requires a mandatory upgrade from our users.
Upgrade deadline for users running v0.4.2 official release is extended to Monday April 25.
However, users running v0.5.1 RC2 release candidate must upgrade before next Monday - March 14. After March 14 v0.5.1 RC2 release candidate would be on a separate blockchain fork from main blockchain and will no longer be supported. It is generally not recommended for users to run release candidates for production purposes.
Back up wallet using the menu option or command line.
Note down your balance/stake in the wallet.
Shutdown peercoin client
Uninstall old client
Download and install v0.5.2 client
Start up v0.5.2 client
Confirm release name of the client as 0.5.2ppc-beta
8 ) Verify your balance/stake as correct.
"Listen for connections on (default: 9901 or testnet: 9903)"
but in weekly update 74 it says
There is also a slight change to testnet node. Previously testnet node shares default rpc port (9902) with production node. [b]Now testnet node has a separate default rpc port 9904[/b]. Testnet node can be run simultaneously with production node, but if you use command line for rpc access make sure you use the -testnet switch to query testnet node.
On my win7 laptop I run peerunity since 2014. I did the following to instal the offcial client v0.5.2 -
download the binary and run it.
copy addr.dat blk*.dat database/log* to the v0.5.2 data directory
run v0.5.2 client without a wallet, and wait for the block chain to download until seeing green tick at lower right corner. Check debug window this is really 0.5.2
4 quit client. wait until the files with “__” in the names are gone in the data directory.
copy wallet.dat from peerunity data directory to that of v0.5.2 client
run v0.5.2 client with current wallet. everything looks fine.
total in less than 1 hour (my peerunity blockchain was very uptodate)