diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 3e05ae56..3ca49358 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.108.0"
+  ".": "0.109.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index f6e24a32..a9fd9444 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,2 +1,2 @@
 configured_endpoints: 103
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-04f02fa57c3ab8d15ecf0a16a41a83814c21cdc2a830fae4d65f1b7b2196d819.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-979330185e8fda7b2bc2440075fe81c66132fc87ff3c548e93dd05db35ba3172.yml
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2be1a602..f9afbe2b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## 0.109.0 (2025-03-11)
+
+Full Changelog: [v0.108.0...v0.109.0](https://github.com/orbcorp/orb-go/compare/v0.108.0...v0.109.0)
+
+### Features
+
+* **api:** api update ([#492](https://github.com/orbcorp/orb-go/issues/492)) ([a2ec348](https://github.com/orbcorp/orb-go/commit/a2ec348e8c0d41a0b7730e28afe8d90f1dbd7839))
+* **client:** accept RFC6838 JSON content types ([#489](https://github.com/orbcorp/orb-go/issues/489)) ([62eee96](https://github.com/orbcorp/orb-go/commit/62eee9690f4fe614c405ac80ca9999ff610ca721))
+
+
+### Refactors
+
+* tidy up dependencies ([#491](https://github.com/orbcorp/orb-go/issues/491)) ([46d90e3](https://github.com/orbcorp/orb-go/commit/46d90e38e37200bf0a884ec627dc779e7f1b9ecd))
+
 ## 0.108.0 (2025-03-10)
 
 Full Changelog: [v0.107.0...v0.108.0](https://github.com/orbcorp/orb-go/compare/v0.107.0...v0.108.0)
diff --git a/README.md b/README.md
index 1120524a..e2ca7243 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ Or to pin the version:
 <!-- x-release-please-start-version -->
 
 ```sh
-go get -u 'github.com/orbcorp/orb-go@v0.108.0'
+go get -u 'github.com/orbcorp/orb-go@v0.109.0'
 ```
 
 <!-- x-release-please-end -->
diff --git a/eventbackfill.go b/eventbackfill.go
index 94aa52c7..df622f4b 100644
--- a/eventbackfill.go
+++ b/eventbackfill.go
@@ -532,9 +532,13 @@ func (r EventBackfillRevertResponseStatus) IsKnown() bool {
 }
 
 type EventBackfillNewParams struct {
-	// The (exclusive) end of the usage timeframe affected by this backfill.
+	// The (exclusive) end of the usage timeframe affected by this backfill. By
+	// default, Orb allows backfills up to 10 days in duration at a time. Reach out to
+	// discuss extending this limit and your use case.
 	TimeframeEnd param.Field[time.Time] `json:"timeframe_end,required" format:"date-time"`
-	// The (inclusive) start of the usage timeframe affected by this backfill.
+	// The (inclusive) start of the usage timeframe affected by this backfill. By
+	// default, Orb allows backfills up to 10 days in duration at a time. Reach out to
+	// discuss extending this limit and your use case.
 	TimeframeStart param.Field[time.Time] `json:"timeframe_start,required" format:"date-time"`
 	// The time at which no more events will be accepted for this backfill. The
 	// backfill will automatically begin reflecting throughout Orb at the close time.
diff --git a/go.mod b/go.mod
index c7e58fb2..d874c96b 100644
--- a/go.mod
+++ b/go.mod
@@ -3,9 +3,12 @@ module github.com/orbcorp/orb-go
 go 1.21
 
 require (
-	github.com/google/uuid v1.3.0 // indirect
-	github.com/tidwall/gjson v1.14.4 // indirect
+	github.com/google/uuid v1.3.0
+	github.com/tidwall/gjson v1.14.4
+	github.com/tidwall/sjson v1.2.5
+)
+
+require (
 	github.com/tidwall/match v1.1.1 // indirect
 	github.com/tidwall/pretty v1.2.1 // indirect
-	github.com/tidwall/sjson v1.2.5 // indirect
 )
diff --git a/internal/requestconfig/requestconfig.go b/internal/requestconfig/requestconfig.go
index cdd90ea7..d2a5dc47 100644
--- a/internal/requestconfig/requestconfig.go
+++ b/internal/requestconfig/requestconfig.go
@@ -10,6 +10,7 @@ import (
 	"io"
 	"math"
 	"math/rand"
+	"mime"
 	"net/http"
 	"net/url"
 	"runtime"
@@ -490,7 +491,8 @@ func (cfg *RequestConfig) Execute() (err error) {
 
 	// If we are not json, return plaintext
 	contentType := res.Header.Get("content-type")
-	isJSON := strings.Contains(contentType, "application/json") || strings.Contains(contentType, "application/vnd.api+json")
+	mediaType, _, _ := mime.ParseMediaType(contentType)
+	isJSON := strings.Contains(mediaType, "application/json") || strings.HasSuffix(mediaType, "+json")
 	if !isJSON {
 		switch dst := cfg.ResponseBodyInto.(type) {
 		case *string:
@@ -501,7 +503,7 @@ func (cfg *RequestConfig) Execute() (err error) {
 		case *[]byte:
 			*dst = contents
 		default:
-			return fmt.Errorf("expected destination type of 'string' or '[]byte' for responses with content-type that is not 'application/json'")
+			return fmt.Errorf("expected destination type of 'string' or '[]byte' for responses with content-type '%s' that is not 'application/json'", contentType)
 		}
 		return nil
 	}
diff --git a/internal/version.go b/internal/version.go
index da089505..80772caf 100644
--- a/internal/version.go
+++ b/internal/version.go
@@ -2,4 +2,4 @@
 
 package internal
 
-const PackageVersion = "0.108.0" // x-release-please-version
+const PackageVersion = "0.109.0" // x-release-please-version