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Site Extension Resolution
Paul Batum edited this page Sep 19, 2018
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In many scenarios, Azure Functions runs as a Site Extension. Functions is a little special however in that the site extension will load even in cases where the version was not specified appropriately (e.g. FUNCTIONS_EXTENSION_VERSION="").
For reference, here is the observed behavior as of September 2018:
| Requested Version | Resolved Version | Notes |
|---|---|---|
| "~2" | 2.0.12115.0 | Resolves to the latest production build of V2 |
| "~1" | 1.0.11959.0 | Resolves to the latest production build of V1 |
| "" | 2.0.12115.0 | Resolves to the latest production build |
| "latest" | 2.0.12115.0 | Resolves to the latest production build |
| "fabioedition" | 2.0.12115.0 | Unrecognized version, so resolves to the latest production build |
| "1.0.99999" | 1.0.11959.0 | This version doesnt exist, so resolves to the latest production build matching major.minor |
| "~0.8" | 2.0.12115.0 | This version doesnt exist, but its also unable to resolve to a matching major.minor so it instead resolves to latest |
| "beta" | 2.0.12115.0 | Would resolve to a more recent pre-release version if it existed |
- Configuration Settings
- function.json
- host.json
- host.json (v2)
- Http Functions
- Function Runtime Versioning
- Official Functions developers guide
- Host Health Monitor
- Managing Connections
- Renaming a Function
- Retrieving information about the currently running function
- Site Extension Resolution
- Linux Consumption Regions
- Using LinuxFxVersion for Linux Function apps
- Out-of-proc Cancellation Tokens
- Assembly Resolution in Azure Functions
- ILogger
- Precompiled functions
- Official Functions C# developer reference
- Contributor Onboarding
- Development Process
- Deploying the Functions runtime as a private site extension
- Authoring & Testing Language Extensions
- Bindings in out-of-proc
- Language Extensibility
- Worker Capabilities
- Investigating and reporting issues with timer triggered functions not firing
- Sharing Your Function App name privately
- Azure Functions CLI release notes [moved here]
- Function App Zipped Deployment [deprecated]