chore: release main (#266)

🤖 I have created a release *beep* *boop*
---


<details><summary>go: 0.4.0</summary>

##
[0.4.0](go/v0.3.1...go/v0.4.0)
(2025-10-07)


### Features

* Add configuration to allow adjusting the batch and queue sizes for
logs and spans.
([abecbb6](abecbb6))
* Adjust the default export and queue batch sizes for logs and spans to
match the otel defaults.
([abecbb6](abecbb6))
</details>

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Release Go SDK v0.4.0 adding configurable batch/queue sizes and
aligning default export/queue sizes with OTEL.
> 
> - **Go SDK v0.4.0**
> - **Features**: configurable batch and queue sizes for logs and spans;
defaults aligned with OTEL export/queue sizes.
> - **Version bumps**:
>   - `.release-please-manifest.json`: `go` → `0.4.0`.
> - `go/internal/metadata/metadata.go`: `InstrumentationVersion` →
`0.4.0`.
> - **Docs**:
>   - `go/CHANGELOG.md`: add `0.4.0` entry with the above features.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
1a8f732. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: LaunchDarklyReleaseBot

.release-please-manifest.json

@@ -1,5 +1,5 @@
 {
-	"go": "0.3.1",
+	"go": "0.4.0",
 	"sdk/@launchdarkly/observability": "0.4.5",
 	"sdk/@launchdarkly/observability-android": "0.10.0",
 	"sdk/@launchdarkly/observability-dotnet": "0.3.0",

go/CHANGELOG.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## [0.4.0](https://github.com/launchdarkly/observability-sdk/compare/go/v0.3.1...go/v0.4.0) (2025-10-07)
+
+
+### Features
+
+* Add configuration to allow adjusting the batch and queue sizes for logs and spans. ([abecbb6](https://github.com/launchdarkly/observability-sdk/commit/abecbb64d070f97e16f281065a6a2350668e711c))
+* Adjust the default export and queue batch sizes for logs and spans to match the otel defaults. ([abecbb6](https://github.com/launchdarkly/observability-sdk/commit/abecbb64d070f97e16f281065a6a2350668e711c))
+
 ## [0.3.1](https://github.com/launchdarkly/observability-sdk/compare/go/v0.3.0...go/v0.3.1) (2025-10-06)
 
 

go/internal/metadata/metadata.go

@@ -6,5 +6,5 @@ const (
 
 	// InstrumentationVersion is the version of the instrumentation.
 	// This is automatically updated by the release process.
-	InstrumentationVersion = "0.3.1" // {{ x-release-please-version }}
+	InstrumentationVersion = "0.4.0" // {{ x-release-please-version }}
 )