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# Tendermint
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2018-06-20 17:35:30 -07:00
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[Byzantine-Fault Tolerant](https://en.wikipedia.org/wiki/Byzantine_fault_tolerance)
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[State Machine Replication](https://en.wikipedia.org/wiki/State_machine_replication).
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Or [Blockchain](https://en.wikipedia.org/wiki/Blockchain_(database)) for short.
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[](https://github.com/tendermint/tendermint/releases/latest)
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[](https://godoc.org/github.com/tendermint/tendermint)
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[](https://github.com/moovweb/gvm)
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[](https://riot.im/app/#/room/#tendermint:matrix.org)
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[](https://github.com/tendermint/tendermint/blob/master/LICENSE)
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[](https://github.com/tendermint/tendermint)
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2018-03-26 10:59:10 +02:00
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2018-06-20 17:35:30 -07:00
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Branch | Tests | Coverage
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----------|-------|----------
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master | [](https://circleci.com/gh/tendermint/tendermint/tree/master) | [](https://codecov.io/gh/tendermint/tendermint)
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develop | [](https://circleci.com/gh/tendermint/tendermint/tree/develop) | [](https://codecov.io/gh/tendermint/tendermint)
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2018-05-09 13:48:21 -07:00
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2018-06-20 17:35:30 -07:00
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Tendermint Core is Byzantine Fault Tolerant (BFT) middleware that takes a state transition machine - written in any programming language -
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and securely replicates it on many machines.
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For protocol details, see [the specification](/docs/spec).
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For detailed analysis of the consensus protocol, including safety and liveness proofs,
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see our recent paper, "[The latest gossip on BFT consensus](https://arxiv.org/abs/1807.04938)".
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2018-06-20 17:35:30 -07:00
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## A Note on Production Readiness
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While Tendermint is being used in production in private, permissioned
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environments, we are still working actively to harden and audit it in preparation
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for use in public blockchains, such as the [Cosmos Network](https://cosmos.network/).
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We are also still making breaking changes to the protocol and the APIs.
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Thus, we tag the releases as *alpha software*.
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In any case, if you intend to run Tendermint in production,
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please [contact us](https://riot.im/app/#/room/#tendermint:matrix.org) :)
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## Security
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To report a security vulnerability, see our [bug bounty
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program](https://tendermint.com/security).
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For examples of the kinds of bugs we're looking for, see [SECURITY.md](SECURITY.md)
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## Minimum requirements
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Requirement|Notes
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---|---
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Go version | Go1.10 or higher
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## Install
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See the [install instructions](/docs/introduction/install.md)
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## Quick Start
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- [Single node](/docs/tendermint-core/using-tendermint.md)
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- [Local cluster using docker-compose](/networks/local)
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- [Remote cluster using terraform and ansible](/docs/networks/terraform-and-ansible.md)
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- [Join the Cosmos testnet](https://cosmos.network/testnet)
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## Resources
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### Tendermint Core
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For details about the blockchain data structures and the p2p protocols, see the
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the [Tendermint specification](/docs/spec).
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For details on using the software, see the [documentation](/docs/) which is also
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hosted at: https://tendermint.com/docs/
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### Tools
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Benchmarking and monitoring is provided by `tm-bench` and `tm-monitor`, respectively.
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Their code is found [here](/tools) and these binaries need to be built seperately.
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Additional documentation is found [here](/docs/tools).
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### Sub-projects
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* [Amino](http://github.com/tendermint/go-amino), a reflection-based improvement on proto3
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* [IAVL](http://github.com/tendermint/iavl), Merkleized IAVL+ Tree implementation
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### Applications
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* [Cosmos SDK](http://github.com/cosmos/cosmos-sdk); a cryptocurrency application framework
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* [Ethermint](http://github.com/cosmos/ethermint); Ethereum on Tendermint
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* [Many more](https://tendermint.com/ecosystem)
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### Research
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* [Master's Thesis on Tendermint](https://atrium.lib.uoguelph.ca/xmlui/handle/10214/9769)
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* [Original Whitepaper](https://tendermint.com/static/docs/tendermint.pdf)
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* [Blog](https://blog.cosmos.network/tendermint/home)
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## Contributing
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Yay open source! Please see our [contributing guidelines](CONTRIBUTING.md).
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## Versioning
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### SemVer
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Tendermint uses [SemVer](http://semver.org/) to determine when and how the version changes.
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According to SemVer, anything in the public API can change at any time before version 1.0.0
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To provide some stability to Tendermint users in these 0.X.X days, the MINOR version is used
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to signal breaking changes across a subset of the total public API. This subset includes all
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interfaces exposed to other processes (cli, rpc, p2p, etc.), but does not
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include the in-process Go APIs.
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That said, breaking changes in the following packages will be documented in the
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CHANGELOG even if they don't lead to MINOR version bumps:
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- types
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- rpc/client
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- config
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- node
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- libs/bech32
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- libs/common
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- libs/db
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- libs/errors
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- libs/log
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Exported objects in these packages that are not covered by the versioning scheme
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are explicitly marked by `// UNSTABLE` in their go doc comment and may change at any
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time without notice. Functions, types, and values in any other package may also change at any time.
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### Upgrades
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In an effort to avoid accumulating technical debt prior to 1.0.0,
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we do not guarantee that breaking changes (ie. bumps in the MINOR version)
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will work with existing tendermint blockchains. In these cases you will
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have to start a new blockchain, or write something custom to get the old
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data into the new chain.
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However, any bump in the PATCH version should be compatible with existing histories
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(if not please open an [issue](https://github.com/tendermint/tendermint/issues)).
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2018-09-08 08:45:12 -04:00
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For more information on upgrading, see [here](./UPGRADING.md)
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2018-06-20 17:35:30 -07:00
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## Code of Conduct
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Please read, understand and adhere to our [code of conduct](CODE_OF_CONDUCT.md).
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