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+---
+applied_at: '2026-04-22'
+applies_to:
+  - sdks
+  - swift
+is_impactful: true
+is_new_feature: true
+release_source_url: 'https://github.com/box/box-ios-sdk/releases/tag/6.7.0'
+collapse: true
+---
+
+# Box iOS SDK `6.7.0` released
+
+### ⚠ BREAKING CHANGES
+
+* **boxsdkgen:** Update `retentionLength` field to accept both string and integer ([box/box-codegen#932][1]) ([#1451][2])
+* **boxsdkgen:** Add `max_extension_length` field to Retention Policies ([box/box-openapi#593][3]) \[[#1464][4]]
+
+### Bug Fixes
+
+* **boxsdkgen:** Update `retentionLength` field to accept both string and integer (box/box-codegen[#932][5]) ([#1451][2]) ([`5eacf00`][6])
+
+### New Features and Enhancements
+
+* **boxsdkgen:** Add `max_extension_length` field to Retention Policies (box/box-openapi[#593][7]) ([#1464][4]) ([`c520993`][8])
+
+[1]: https://github.com/box/box-codegen/issues/932
+
+[2]: https://github.com/box/box-ios-sdk/issues/1451
+
+[3]: https://github.com/box/box-openapi/issues/593
+
+[4]: https://github.com/box/box-ios-sdk/issues/1464
+
+[5]: https://github.com/box/box-ios-sdk/issues/932
+
+[6]: https://github.com/box/box-ios-sdk/commit/5eacf00a2b2b84dcfe24c4eeae06dbf8f24296d4
+
+[7]: https://github.com/box/box-ios-sdk/issues/593
+
+[8]: https://github.com/box/box-ios-sdk/commit/c520993af9b0129f376fda8f8451712187e73707