View Source Upgrade to Sentry 10.x

This guide contains information on how to upgrade from Sentry 9.x to Sentry 10.x. If you're on a version lower than 9.x, see the previous upgrade guides to get to 9.x before going through this one.

Actively Package Your Source Code

Before Sentry 10.0.0, in order to report source code context around errors you had to configure Sentry through the :enable_source_code_context, :root_source_code_paths, and a few other options. These were compile-time options, meaning that if you changed any of these you had to recompile the Sentry dependency itself, not just your project. This was because Sentry used to store the raw source code of your application in its own compiled bytecode.

In Sentry 10.0.0, we've revised this approach for a couple of reasons:

To avoid storing the raw source code in the compiled Sentry code, which in turn makes the BEAM bytecode artifact of your release smaller.
To simplify the compilation/recompilation step mentioned above.

Now, packaging source code is an active step that you have to take. The mix sentry.package_source_code Mix task stores the source code in a compressed file inside the priv directory of the :sentry application. Sentry then loads this file when the :sentry application starts. This approach works well because users of Sentry are not interested in packaging source code within non-production environments, so this new task can be added to release scripts (or Dockerfiles, for example) only in production environments.

All the configuration options related to source code remain the same. See the documentation in the Sentry module.

What Do I Have to Do?

Add a call to mix sentry.package_source_code in your release script. This can be inside a Dockerfile, for example. Make sure to call this before mix release, so that the built release will include the packaged source code.
That's all!

Make Sure You're Using the Right Environment

Now, if you're not explicitly setting he :environment_name option in your config or setting the SENTRY_ENVIRONMENT environment variable, the environment will default to production (which is in line with the other Sentry SDKs).

Rename `:before_send_event` to `:before_send`

To be in line with all other Sentry SDKs, we renamed the :before_send_event configuration option to :before_send. Just rename :before_send_event to :before_send in your configuration and potentially in any call where you pass it directly.

Stop Using `:included_environments`

We hard-deprecated :included_environments. It's a bit of a confusing option that essentially no other Sentry SDKs use. To control whether to send events to Sentry, use the :dsn configuration instead (if set then we send events, if not set then we don't send events). :included_environments will be removed in v11.0.0.

For example, if you had something like this in config/config.exs:

# In config/config.exs
config :sentry,
  dsn: "...",
  environment_name: config_env(),
  included_environments: [:prod]

Move this block to config/prod.exs, and turn it into:

# In config/prod.exs
config :sentry,
  dsn: "...",
  environment_name: :prod

This way, :dsn will only be set in the :prod environment and no events will be sent in the development or testing environments.

Alternatively, if you were setting :dsn in config/runtime.exs (for use with Mix releases), change it to:

# In config/runtime.exs
if config_env() == :prod do
  config :sentry,
    dsn: "...",
    environment_name: :prod
end

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