21 lines
876 B
Markdown
21 lines
876 B
Markdown
---
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title: "Deploying"
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---
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As shown in the diagram above, a program author creates a program, compiles it
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to an ELF shared object containing BPF bytecode, and uploads it to the Solana
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cluster with a special _deploy_ transaction. The cluster makes it available to
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clients via a _program ID_. The program ID is an _address_ specified when
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deploying and is used to reference the program in subsequent transactions.
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Upon a successful deployment the account that holds the program is marked
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executable and its account data become permanently immutable. If any changes
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are required to the program (features, patches, etc...) the new program must be
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deployed to a new program ID.
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The Solana command line interface supports deploying programs, for more
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information see the [`deploy`](cli/usage.md#deploy-program) command line usage
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documentation.
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