Refactor SDK to v0.8.4 with new Hub/Scope/Transport architecture

.github/workflows/lint.yml

@@ -2,9 +2,9 @@ name: Lint
 
 on:
   push:
-    branches: [main]
+    branches: [main, develop]
   pull_request:
-    branches: [main]
+    branches: [main, develop]
 
 jobs:
   golangci:

.github/workflows/test.yml

@@ -2,9 +2,9 @@ name: Tests
 
 on:
   push:
-    branches: [main]
+    branches: [main, develop]
   pull_request:
-    branches: [main]
+    branches: [main, develop]
 
 jobs:
   test:

.golangci.yml

@@ -0,0 +1,15 @@
+linters:
+  enable-all: false
+  enable:
+    - errcheck
+    - gosimple
+    - govet
+    - ineffassign
+    - staticcheck
+    - unused
+
+issues:
+  exclude-rules:
+    - path: _test\.go
+      linters:
+        - errcheck

CHANGELOG.md

@@ -5,6 +5,30 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.8.4] - 2026-03-22
+
+### Fixed
+
+- `Scope.ApplyToEntry` no longer mutates the caller's `Metadata` map when the scope has a user but no scope-level metadata
+- `otelexport`: completed span trace IDs are now correctly preserved; an ambient active span in the exporter context can no longer override them
+- `retry.Do` now drains the response body and returns an error when retries are exhausted on a retryable HTTP status (was returning `nil` error with an open body)
+- `tryExtractPkgErrorsStack` no longer panics when an error interface holds a nil concrete pointer
+- Client-level event processor slice is now safely copied under lock before iteration, preventing a data race with concurrent `AddEventProcessor` calls
+- `Client.Options()` Tags map is now copied inside the read lock, preventing a race if the caller mutates the original map concurrently
+- `EnvironmentIntegration` processor copies the metadata map before adding the `runtime` key instead of mutating the entry's existing map
+- `Hub.Init` flush timeout now correctly uses `client.Options().FlushTimeout` instead of a hardcoded value
+
+### Changed
+
+- `Client` log methods (`Debug`, `Info`, `Warn`, `Error`, `Critical`) now return `EventID` instead of `error`, consistent with the `Hub` API
+- `ClientOptions.AttachStacktrace` changed from `bool` to `*bool`; use the new `Bool(v)` helper to set it explicitly and distinguish `false` from the zero value
+- `retry.Do` returns an error (instead of `(resp, nil)`) when the maximum retry count is exhausted on a retryable HTTP status
+
+### Removed
+
+- `Scope.SetTags` and `Scope.SetMetadata` removed (use `SetTag` and pass metadata directly to log methods)
+- `HasHubOnContext` removed (use `GetHubFromContext(ctx) != nil` directly)
+
 ## [0.1.0] - 2026-01-13
 
 ### Added
@@ -28,4 +52,5 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - Quick start guide
   - Framework integrations guide
 
+[0.8.4]: https://github.com/logtide-dev/logtide-sdk-go/releases/tag/v0.8.4
 [0.1.0]: https://github.com/logtide-dev/logtide-sdk-go/releases/tag/v0.1.0