update the examples to use the new OTEL_CONFIG_FILE variable (#9340)

Signed-off-by: alex boten <223565+codeboten@users.noreply.github.com>
Co-authored-by: otelbot <197425009+otelbot@users.noreply.github.com>
Co-authored-by: Tiffany Hrabusa <30397949+tiffany76@users.noreply.github.com>
Co-authored-by: Jay DeLuca <jaydeluca4@gmail.com>

Author: 4 people

content/en/docs/languages/php/sdk.md

@@ -108,9 +108,8 @@ PHP supports OpenTelemetry's experimental
 [Declarative Configuration](/docs/specs/otel/configuration/#declarative-configuration),
 where the SDK can be configured through a YAML file.
 
-To enable this, set `OTEL_EXPERIMENTAL_CONFIG_FILE=/path/to/config.yaml` where
-`config.yaml` is a file which conforms to the declarative configuration schema,
-for example:
+To enable this, set `OTEL_CONFIG_FILE=/path/to/config.yaml` where `config.yaml`
+is a file which conforms to the declarative configuration schema, for example:
 
 `config.yaml`:
 
@@ -132,13 +131,13 @@ resource:
 
 ```shell
 OTEL_PHP_AUTOLOAD_ENABLED=true \
-OTEL_EXPERIMENTAL_CONFIG_FILE=/path/to/config.yaml
+OTEL_CONFIG_FILE=/path/to/config.yaml
 php example.php
 ```
 
-The existence of `OTEL_EXPERIMENTAL_CONFIG_FILE` will cause the autoloader to
-attempt to configure with the provided config file, and other environment
-variables will be ignored.
+The existence of `OTEL_CONFIG_FILE` will cause the autoloader to attempt to
+configure with the provided config file, and other environment variables will be
+ignored.
 
 ### Excluded URLs
 

content/en/docs/languages/sdk-configuration/declarative-configuration.md

@@ -14,7 +14,9 @@ This approach is useful when:
 
 > [!WARNING]
 >
-> Declarative configuration is experimental.
+> The declarative configuration schema is stable. The parts of it that are still
+> experimental are suffixed with `/development`. Support for declarative
+> configuration in various implementations is still experimental.
 
 ## Supported languages
 
@@ -28,13 +30,12 @@ For details, refer to the
 ## Getting started
 
 1. Save the following configuration file as `otel-config.yaml`.
-2. Set the environment variable
-   `OTEL_EXPERIMENTAL_CONFIG_FILE=/path/to/otel-config.yaml`
+2. Set the environment variable `OTEL_CONFIG_FILE=/path/to/otel-config.yaml`
 
 Recommended configuration file:
 
 ```yaml
-file_format: '1.0-rc.1'
+file_format: '1.0'
 
 resource:
   attributes_list: ${OTEL_RESOURCE_ATTRIBUTES}

content/en/docs/zero-code/java/agent/declarative-configuration.md

@@ -20,7 +20,9 @@ configuration, including the OpenTelemetry Java agent.
 
 > [!WARNING]
 >
-> Declarative configuration is experimental.
+> The declarative configuration schema is stable. The parts of it that are still
+> experimental are suffixed with `/development`. Java agent support for
+> declarative configuration is still experimental.
 
 ## Supported versions