Releases: skycoin/cx
CX version 0.8.0
CX version 0.7.5
Overview
This releases includes a range of changes to CX default behavior and setup instructions.
CX version 0.7.1
CX version 0.7.1
2019-07-26
Today the Skycoin development team releases the CX programming language
version 0.7.1. This is the second public release of CX 0.7, and it contains
improvements mainly in the area of blockchain integration.
The focus of this release is the ability to store heap objects on CX
Chains. This means that the programmer now has the ability to store
strings, arrays and slices on the blockchain, which was not possible before.
To achieve this, the CX team had to redesign and improve the builtin garbage
collector. This is a major internal improvement even though it contains no
user-visible changes.
CX chains are also known as Fiber chains. Fiber is the way to create
specialized blockchains with CX code adapted to it, using Skycoin blockchain
technology. It is important to note that it is not the Skycoin blockchain
itself that is affected by CX chain, but a new blockchain using the same
technology.
Note that there are still a number of issues with CX, but they are generic
rather than related to the blockchain integration.
The description on how to do the integration of CX and the blockchain can be
read here: https://github.com/skycoin/cx/wiki/CX-Chains-Tutorial.
This release also contains a modified version of the Skycoin blockchain
repository with adaptations to run CX programs as transactions. These changes
will be moved back into the main Skycoin repository after extensive testing.
Backward Compatibility
CX 0.7.1 should be able to run programs on CX Chains created using CX 0.7.0.
This means that you will be able to upgrade CX and still run your existing
Skycoin Fiber applications.
New in This Release
Ability to store strings, arrays and slices on the blockchain
The ability to store all types of data on the blockchain is important for the
development of advanced dApps (distributed applications on the
blockchain). Some of these types store part of their contents on the heap
rather than in the data segment. Hence, CX 0.7.1 now stores both the contents of
the heap that are referenced by global variables on the blockchain.
Language Improvements
There are no language-specific improvements in CX 0.7.1.
Library Improvements
There are no library improvements in CX 0.7.1.
Fixed issues
- #286: Compilation error when struct field is named 'input' or 'output'
- #323: Installation issues on Windows after merging #320
- Several fixes to builtin functions that create heap objects which had hidden
bugs that were not registered in the issue tracker.
Documentation
- The documentation for the CX chains has been slightly improved. It can be
found on the CX wiki here: https://github.com/skycoin/cx/wiki/CX-Chains-Tutorial.
About CX
CX is the blockchain programming language for use on the
Skycoin blockchain and associated Fiber
blockchains. CX is a general purpose, interpreted and compiled programming
language, with a very strict type system and a syntax similar to Golang's. CX
provides a new programming paradigm based on the concept of affordances.
CX version 0.7.0
CX version 0.7.0
2019-06-15
Today the Skycoin development team releases the CX programming language
version 0.7.0. This is the first public release of CX 0.7, and it contains
improvements in several areas of CX: new features, libraries and bugfixes.
The focus of this release is the integration of CX into the Skycoin Fiber
blockchains, called CX chains. Fiber is the way to create specialized
blockchains with CX code adapted to it, using Skycoin blockchain
technology. It is important to note that it is not the Skycoin blockchain
itself that is affected by CX chain, but a new blockchain using the same
technology.
Due to the importance of getting the blockchain programming language right,
there was a previous public beta of CX 0.7. This public release fixes all
known issues with the CX integration with the blockchain from the beta. The
most important one is that we increased the size of the biggest possible CX
chain program from 32 KB to 64 MB. Note that there are still a number of
issues with CX, but they are generic rather than related to the blockchain
integration.
The description on how to do the integration of CX and the blockchain can be
read here: https://github.com/skycoin/cx/wiki/CX-Chains-Tutorial.
This release also contains a modified version of the Skycoin blockchain
repository with adaptations to run CX programs as transactions. These changes
will be moved back into the main Skycoin repository after extensive testing.
New in This Release
Blockchain integration
This is the first public release where blockchain integration is actively supported.
This section will see many additions in upcoming versions.
New in version 0.7.0 is that CX itself is used to generate addresses,
something that previously used the cmd/cli command.
New Debug Option for CX Developers
Developers of CX itself can now debug CX by making the lexical analyzer output
the tokens that are being returned.
Language Improvements
There are no language-specific improvements in CX 0.7.0.
IDE
There is no longer an IDE in the CX repository.
Library Improvements
There are no library improvements in CX 0.7.0
Fixed issues
- #357: Error running cx in blockchain broadcast mode.
- #360: Panic when package keyword is misspelled
- #373: Error in address used to generate a CSRF token. Port was 6001 instead of 6421.
- #388: Array fail on cx --blockchain.
- #389: CX chains errors with big programs.
Documentation
- The documentation for the CX chains has been improved. It can be found on
the CX wiki here: https://github.com/skycoin/cx/wiki/CX-Chains-Tutorial.
About CX
CX is the blockchain programming language for use on the
Skycoin blockchain and associated Fiber
blockchains. CX is a general purpose, interpreted and compiled programming
language, with a very strict type system and a syntax similar to Golang's. CX
provides a new programming paradigm based on the concept of affordances.