The IoP Blockchain client version 6.3.0 is now available
- Updated user interface with the new logo.
- Updated subsidy calculation with lower halving interval. Additional rewards compensate for lower halving interval and coins lost to fermat beta mining. Max Supply is now just below 21 million IOP, as initially planned. This version will hard fork from previous versions on block 149999. Please update as soon as possible.
We are proud to announce a complete redesign of the IoP Core wallet. You can now buy IOP directly from inside the wallet software thanks to our collaboration with Indacoin.
This major release is meant to replace the old version of the IoP Blockchain client. While the consensus remains fully compatible, the structure of the data directory does not. Please read the release notes very carefully if you update from version 5.0.1 or below.
IoP is an experimental digital currency that enables instant payments to anyone, anywhere in the world. IoP uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. IoP Core is the name of open source software which enables the use of this currency.
IoP Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.
The master branch is regularly built and tested, but is not guaranteed to be
completely stable. Tags are created
regularly to indicate new official, stable release versions of IoP Core.
The contribution workflow is described in CONTRIBUTING.md.
The Discord channel should be used to discuss complicated or controversial changes before working on a patch set.
Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.
Developers are strongly encouraged to write unit tests for new code, and to
submit new unit tests for old code. Unit tests can be compiled and run
(assuming they weren't disabled in configure) with: make check. Further details on running
and extending unit tests can be found in /src/test/README.md.
There are also regression and integration tests, written
in Python, that are run automatically on the build server.
These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py
The Travis CI system makes sure that every pull request is built for Windows, Linux, and OS X, and that unit/sanity tests are run automatically.
Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.