From 5ce4800436493442b90af4c8647b6840c582c374 Mon Sep 17 00:00:00 2001
From: Andrew Heard <andrewheard@google.com>
Date: Wed, 16 Oct 2024 10:32:51 -0400
Subject: [PATCH 1/3] [Vertex AI] Increase macOS minimum to 12.0

---
 FirebaseVertexAI/Sources/Chat.swift           |  2 +-
 .../Sources/CountTokensRequest.swift          | 10 +++----
 .../Sources/FunctionCalling.swift             |  9 +++++++
 .../Sources/GenerateContentError.swift        |  2 +-
 .../Sources/GenerateContentRequest.swift      |  6 ++---
 .../Sources/GenerateContentResponse.swift     | 26 ++++++++++---------
 .../Sources/GenerationConfig.swift            |  4 +--
 .../Sources/GenerativeAIRequest.swift         |  4 +--
 .../Sources/GenerativeAIService.swift         |  2 +-
 .../Sources/GenerativeModel.swift             |  2 +-
 FirebaseVertexAI/Sources/JSONValue.swift      |  5 ++++
 FirebaseVertexAI/Sources/ModelContent.swift   |  8 +++---
 .../Sources/PartsRepresentable+Image.swift    |  4 +--
 .../Sources/PartsRepresentable.swift          |  8 +++---
 FirebaseVertexAI/Sources/Safety.swift         | 14 ++++++----
 .../Sources/Types/Internal/InternalPart.swift | 16 ++++++------
 .../Sources/Types/Public/Part.swift           | 12 ++++-----
 .../Sources/Types/Public/Schema.swift         |  4 +++
 FirebaseVertexAI/Sources/VertexAI.swift       |  2 +-
 .../Tests/Unit/GenerationConfigTests.swift    |  2 +-
 .../Tests/Unit/JSONValueTests.swift           |  1 +
 FirebaseVertexAI/Tests/Unit/PartTests.swift   |  2 +-
 .../Tests/Unit/PartsRepresentableTests.swift  |  2 +-
 .../Tests/Unit/VertexAIAPITests.swift         |  2 +-
 .../Tests/Unit/VertexComponentTests.swift     |  2 +-
 25 files changed, 88 insertions(+), 63 deletions(-)

diff --git a/FirebaseVertexAI/Sources/Chat.swift b/FirebaseVertexAI/Sources/Chat.swift
index 2ebab217ca8..717bf29aae2 100644
--- a/FirebaseVertexAI/Sources/Chat.swift
+++ b/FirebaseVertexAI/Sources/Chat.swift
@@ -16,7 +16,7 @@ import Foundation
 
 /// An object that represents a back-and-forth chat with a model, capturing the history and saving
 /// the context in memory between each message sent.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public class Chat {
   private let model: GenerativeModel
 
diff --git a/FirebaseVertexAI/Sources/CountTokensRequest.swift b/FirebaseVertexAI/Sources/CountTokensRequest.swift
index 128cb3b8ce6..6c36d96b4c0 100644
--- a/FirebaseVertexAI/Sources/CountTokensRequest.swift
+++ b/FirebaseVertexAI/Sources/CountTokensRequest.swift
@@ -14,7 +14,7 @@
 
 import Foundation
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct CountTokensRequest {
   let model: String
 
@@ -26,7 +26,7 @@ struct CountTokensRequest {
   let options: RequestOptions
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension CountTokensRequest: GenerativeAIRequest {
   typealias Response = CountTokensResponse
 
@@ -36,7 +36,7 @@ extension CountTokensRequest: GenerativeAIRequest {
 }
 
 /// The model's response to a count tokens request.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct CountTokensResponse {
   /// The total number of tokens in the input given to the model as a prompt.
   public let totalTokens: Int
@@ -50,7 +50,7 @@ public struct CountTokensResponse {
 
 // MARK: - Codable Conformances
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension CountTokensRequest: Encodable {
   enum CodingKeys: CodingKey {
     case contents
@@ -60,5 +60,5 @@ extension CountTokensRequest: Encodable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension CountTokensResponse: Decodable {}
diff --git a/FirebaseVertexAI/Sources/FunctionCalling.swift b/FirebaseVertexAI/Sources/FunctionCalling.swift
index 69c90b18e10..60514a6f5f4 100644
--- a/FirebaseVertexAI/Sources/FunctionCalling.swift
+++ b/FirebaseVertexAI/Sources/FunctionCalling.swift
@@ -18,6 +18,7 @@ import Foundation
 ///
 /// This `FunctionDeclaration` is a representation of a block of code that can be used as a ``Tool``
 /// by the model and executed by the client.
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct FunctionDeclaration {
   /// The name of the function.
   let name: String
@@ -53,6 +54,7 @@ public struct FunctionDeclaration {
 ///
 /// A `Tool` is a piece of code that enables the system to interact with external systems to perform
 /// an action, or set of actions, outside of knowledge and scope of the model.
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct Tool {
   /// A list of `FunctionDeclarations` available to the model.
   let functionDeclarations: [FunctionDeclaration]?
@@ -86,6 +88,7 @@ public struct Tool {
 }
 
 /// Configuration for specifying function calling behavior.
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct FunctionCallingConfig {
   /// Defines the execution behavior for function calling by defining the execution mode.
   enum Mode: String {
@@ -131,6 +134,7 @@ public struct FunctionCallingConfig {
 }
 
 /// Tool configuration for any `Tool` specified in the request.
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct ToolConfig {
   let functionCallingConfig: FunctionCallingConfig?
 
@@ -141,6 +145,7 @@ public struct ToolConfig {
 
 // MARK: - Codable Conformance
 
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension FunctionDeclaration: Encodable {
   enum CodingKeys: String, CodingKey {
     case name
@@ -156,10 +161,14 @@ extension FunctionDeclaration: Encodable {
   }
 }
 
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension Tool: Encodable {}
 
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension FunctionCallingConfig: Encodable {}
 
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension FunctionCallingConfig.Mode: Encodable {}
 
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension ToolConfig: Encodable {}
diff --git a/FirebaseVertexAI/Sources/GenerateContentError.swift b/FirebaseVertexAI/Sources/GenerateContentError.swift
index b5b52d0acd5..76ce516f3cf 100644
--- a/FirebaseVertexAI/Sources/GenerateContentError.swift
+++ b/FirebaseVertexAI/Sources/GenerateContentError.swift
@@ -15,7 +15,7 @@
 import Foundation
 
 /// Errors that occur when generating content from a model.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public enum GenerateContentError: Error {
   /// An internal error occurred. See the underlying error for more context.
   case internalError(underlying: Error)
diff --git a/FirebaseVertexAI/Sources/GenerateContentRequest.swift b/FirebaseVertexAI/Sources/GenerateContentRequest.swift
index 87333bbfec1..ffa98fe4159 100644
--- a/FirebaseVertexAI/Sources/GenerateContentRequest.swift
+++ b/FirebaseVertexAI/Sources/GenerateContentRequest.swift
@@ -14,7 +14,7 @@
 
 import Foundation
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct GenerateContentRequest {
   /// Model name.
   let model: String
@@ -28,7 +28,7 @@ struct GenerateContentRequest {
   let options: RequestOptions
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension GenerateContentRequest: Encodable {
   enum CodingKeys: String, CodingKey {
     case contents
@@ -40,7 +40,7 @@ extension GenerateContentRequest: Encodable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension GenerateContentRequest: GenerativeAIRequest {
   typealias Response = GenerateContentResponse
 
diff --git a/FirebaseVertexAI/Sources/GenerateContentResponse.swift b/FirebaseVertexAI/Sources/GenerateContentResponse.swift
index f9d8e1d349c..3472807f1bb 100644
--- a/FirebaseVertexAI/Sources/GenerateContentResponse.swift
+++ b/FirebaseVertexAI/Sources/GenerateContentResponse.swift
@@ -15,9 +15,10 @@
 import Foundation
 
 /// The model's response to a generate content request.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct GenerateContentResponse: Sendable {
   /// Token usage metadata for processing the generate content request.
+  @available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
   public struct UsageMetadata: Sendable {
     /// The number of tokens in the request prompt.
     public let promptTokenCount: Int
@@ -92,7 +93,7 @@ public struct GenerateContentResponse: Sendable {
 
 /// A struct representing a possible reply to a content generation prompt. Each content generation
 /// prompt may produce multiple candidate responses.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct Candidate: Sendable {
   /// The response's content.
   public let content: ModelContent
@@ -118,14 +119,14 @@ public struct Candidate: Sendable {
 }
 
 /// A collection of source attributions for a piece of content.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct CitationMetadata: Sendable {
   /// A list of individual cited sources and the parts of the content to which they apply.
   public let citations: [Citation]
 }
 
 /// A struct describing a source attribution.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct Citation: Sendable {
   /// The inclusive beginning of a sequence in a model response that derives from a cited source.
   public let startIndex: Int
@@ -149,7 +150,7 @@ public struct Citation: Sendable {
 }
 
 /// A value enumerating possible reasons for a model to terminate a content generation request.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct FinishReason: DecodableProtoEnum, Hashable, Sendable {
   enum Kind: String {
     case stop = "STOP"
@@ -204,9 +205,10 @@ public struct FinishReason: DecodableProtoEnum, Hashable, Sendable {
 }
 
 /// A metadata struct containing any feedback the model had on the prompt it was provided.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct PromptFeedback: Sendable {
   /// A type describing possible reasons to block a prompt.
+  @available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
   public struct BlockReason: DecodableProtoEnum, Hashable, Sendable {
     enum Kind: String {
       case safety = "SAFETY"
@@ -257,7 +259,7 @@ public struct PromptFeedback: Sendable {
 
 // MARK: - Codable Conformances
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension GenerateContentResponse: Decodable {
   enum CodingKeys: CodingKey {
     case candidates
@@ -291,7 +293,7 @@ extension GenerateContentResponse: Decodable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension GenerateContentResponse.UsageMetadata: Decodable {
   enum CodingKeys: CodingKey {
     case promptTokenCount
@@ -308,7 +310,7 @@ extension GenerateContentResponse.UsageMetadata: Decodable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension Candidate: Decodable {
   enum CodingKeys: CodingKey {
     case content
@@ -357,10 +359,10 @@ extension Candidate: Decodable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension CitationMetadata: Decodable {}
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension Citation: Decodable {
   enum CodingKeys: CodingKey {
     case startIndex
@@ -412,7 +414,7 @@ extension Citation: Decodable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension PromptFeedback: Decodable {
   enum CodingKeys: CodingKey {
     case blockReason
diff --git a/FirebaseVertexAI/Sources/GenerationConfig.swift b/FirebaseVertexAI/Sources/GenerationConfig.swift
index 8598624aea0..fa472dd37e1 100644
--- a/FirebaseVertexAI/Sources/GenerationConfig.swift
+++ b/FirebaseVertexAI/Sources/GenerationConfig.swift
@@ -16,7 +16,7 @@ import Foundation
 
 /// A struct defining model parameters to be used when sending generative AI
 /// requests to the backend model.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct GenerationConfig {
   /// A parameter controlling the degree of randomness in token selection. A
   /// temperature of zero is deterministic, always choosing the
@@ -143,5 +143,5 @@ public struct GenerationConfig {
 
 // MARK: - Codable Conformances
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension GenerationConfig: Encodable {}
diff --git a/FirebaseVertexAI/Sources/GenerativeAIRequest.swift b/FirebaseVertexAI/Sources/GenerativeAIRequest.swift
index ac9046e0de4..b792830120e 100644
--- a/FirebaseVertexAI/Sources/GenerativeAIRequest.swift
+++ b/FirebaseVertexAI/Sources/GenerativeAIRequest.swift
@@ -14,7 +14,7 @@
 
 import Foundation
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 protocol GenerativeAIRequest: Encodable {
   associatedtype Response: Decodable
 
@@ -24,7 +24,7 @@ protocol GenerativeAIRequest: Encodable {
 }
 
 /// Configuration parameters for sending requests to the backend.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct RequestOptions {
   /// The request’s timeout interval in seconds; if not specified uses the default value for a
   /// `URLRequest`.
diff --git a/FirebaseVertexAI/Sources/GenerativeAIService.swift b/FirebaseVertexAI/Sources/GenerativeAIService.swift
index ff49a17b07f..30a24c13c6b 100644
--- a/FirebaseVertexAI/Sources/GenerativeAIService.swift
+++ b/FirebaseVertexAI/Sources/GenerativeAIService.swift
@@ -18,7 +18,7 @@ import FirebaseCore
 import Foundation
 import os.log
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct GenerativeAIService {
   /// The language of the SDK in the format `gl-<language>/<version>`.
   static let languageTag = "gl-swift/5"
diff --git a/FirebaseVertexAI/Sources/GenerativeModel.swift b/FirebaseVertexAI/Sources/GenerativeModel.swift
index c920a0daa88..0d2ea829f55 100644
--- a/FirebaseVertexAI/Sources/GenerativeModel.swift
+++ b/FirebaseVertexAI/Sources/GenerativeModel.swift
@@ -18,7 +18,7 @@ import Foundation
 
 /// A type that represents a remote multimodal model (like Gemini), with the ability to generate
 /// content based on various input types.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public final class GenerativeModel {
   /// The resource name of the model in the backend; has the format "models/model-name".
   let modelResourceName: String
diff --git a/FirebaseVertexAI/Sources/JSONValue.swift b/FirebaseVertexAI/Sources/JSONValue.swift
index c12e8aecb0f..f1333888d27 100644
--- a/FirebaseVertexAI/Sources/JSONValue.swift
+++ b/FirebaseVertexAI/Sources/JSONValue.swift
@@ -18,12 +18,14 @@ import Foundation
 ///
 /// This may be decoded from, or encoded to, a
 /// [`google.protobuf.Struct`](https://protobuf.dev/reference/protobuf/google.protobuf/#struct).
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public typealias JSONObject = [String: JSONValue]
 
 /// Represents a value in one of JSON's data types.
 ///
 /// This may be decoded from, or encoded to, a
 /// [`google.protobuf.Value`](https://protobuf.dev/reference/protobuf/google.protobuf/#value).
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public enum JSONValue: Sendable {
   /// A `null` value.
   case null
@@ -44,6 +46,7 @@ public enum JSONValue: Sendable {
   case array([JSONValue])
 }
 
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension JSONValue: Decodable {
   public init(from decoder: Decoder) throws {
     let container = try decoder.singleValueContainer()
@@ -68,6 +71,7 @@ extension JSONValue: Decodable {
   }
 }
 
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension JSONValue: Encodable {
   public func encode(to encoder: Encoder) throws {
     var container = encoder.singleValueContainer()
@@ -93,4 +97,5 @@ extension JSONValue: Encodable {
   }
 }
 
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension JSONValue: Equatable {}
diff --git a/FirebaseVertexAI/Sources/ModelContent.swift b/FirebaseVertexAI/Sources/ModelContent.swift
index 885d209e0a1..ba87736e648 100644
--- a/FirebaseVertexAI/Sources/ModelContent.swift
+++ b/FirebaseVertexAI/Sources/ModelContent.swift
@@ -14,7 +14,7 @@
 
 import Foundation
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension [ModelContent] {
   // TODO: Rename and refactor this.
   func throwIfError() throws {
@@ -34,7 +34,7 @@ extension [ModelContent] {
 /// A type describing data in media formats interpretable by an AI model. Each generative AI
 /// request or response contains an `Array` of ``ModelContent``s, and each ``ModelContent`` value
 /// may comprise multiple heterogeneous ``Part``s.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct ModelContent: Equatable, Sendable {
   enum InternalPart: Equatable, Sendable {
     case text(String)
@@ -106,7 +106,7 @@ public struct ModelContent: Equatable, Sendable {
 
 // MARK: Codable Conformances
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension ModelContent: Codable {
   enum CodingKeys: String, CodingKey {
     case role
@@ -114,7 +114,7 @@ extension ModelContent: Codable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension ModelContent.InternalPart: Codable {
   enum CodingKeys: String, CodingKey {
     case text
diff --git a/FirebaseVertexAI/Sources/PartsRepresentable+Image.swift b/FirebaseVertexAI/Sources/PartsRepresentable+Image.swift
index 24d11be2c46..9c5a0c7fe77 100644
--- a/FirebaseVertexAI/Sources/PartsRepresentable+Image.swift
+++ b/FirebaseVertexAI/Sources/PartsRepresentable+Image.swift
@@ -37,7 +37,7 @@ enum ImageConversionError: Error {
 
 #if canImport(UIKit)
   /// Enables images to be representable as ``PartsRepresentable``.
-  @available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+  @available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
   extension UIImage: PartsRepresentable {
     public var partsValue: [any Part] {
       guard let data = jpegData(compressionQuality: imageCompressionQuality) else {
@@ -49,7 +49,7 @@ enum ImageConversionError: Error {
 
 #elseif canImport(AppKit)
   /// Enables images to be representable as ``PartsRepresentable``.
-  @available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+  @available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
   extension NSImage: PartsRepresentable {
     public var partsValue: [any Part] {
       guard let cgImage = cgImage(forProposedRect: nil, context: nil, hints: nil) else {
diff --git a/FirebaseVertexAI/Sources/PartsRepresentable.swift b/FirebaseVertexAI/Sources/PartsRepresentable.swift
index 6ef63d3f182..82d0688df38 100644
--- a/FirebaseVertexAI/Sources/PartsRepresentable.swift
+++ b/FirebaseVertexAI/Sources/PartsRepresentable.swift
@@ -16,13 +16,13 @@ import Foundation
 
 /// A protocol describing any data that could be serialized to model-interpretable input data,
 /// where the serialization process cannot fail with an error.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public protocol PartsRepresentable {
   var partsValue: [any Part] { get }
 }
 
 /// Enables a ``Part`` to be used as a ``PartsRepresentable``.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public extension Part {
   var partsValue: [any Part] {
     return [self]
@@ -31,7 +31,7 @@ public extension Part {
 
 /// Enable an `Array` of ``PartsRepresentable`` values to be passed in as a single
 /// ``PartsRepresentable``.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension [PartsRepresentable]: PartsRepresentable {
   public var partsValue: [any Part] {
     return flatMap { $0.partsValue }
@@ -39,7 +39,7 @@ extension [PartsRepresentable]: PartsRepresentable {
 }
 
 /// Enables a `String` to be passed in as ``PartsRepresentable``.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension String: PartsRepresentable {
   public var partsValue: [any Part] {
     return [TextPart(self)]
diff --git a/FirebaseVertexAI/Sources/Safety.swift b/FirebaseVertexAI/Sources/Safety.swift
index 655046db98a..decb54ba0e8 100644
--- a/FirebaseVertexAI/Sources/Safety.swift
+++ b/FirebaseVertexAI/Sources/Safety.swift
@@ -17,7 +17,7 @@ import Foundation
 /// A type defining potentially harmful media categories and their model-assigned ratings. A value
 /// of this type may be assigned to a category for every model-generated response, not just
 /// responses that exceed a certain threshold.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct SafetyRating: Equatable, Hashable, Sendable {
   /// The category describing the potential harm a piece of content may pose.
   ///
@@ -75,6 +75,7 @@ public struct SafetyRating: Equatable, Hashable, Sendable {
   /// The probability that a given model output falls under a harmful content category.
   ///
   /// > Note: This does not indicate the severity of harm for a piece of content.
+  @available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
   public struct HarmProbability: DecodableProtoEnum, Hashable, Sendable {
     enum Kind: String {
       case negligible = "NEGLIGIBLE"
@@ -110,6 +111,7 @@ public struct SafetyRating: Equatable, Hashable, Sendable {
   }
 
   /// The magnitude of how harmful a model response might be for the respective ``HarmCategory``.
+  @available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
   public struct HarmSeverity: DecodableProtoEnum, Hashable, Sendable {
     enum Kind: String {
       case negligible = "HARM_SEVERITY_NEGLIGIBLE"
@@ -143,7 +145,7 @@ public struct SafetyRating: Equatable, Hashable, Sendable {
 
 /// A type used to specify a threshold for harmful content, beyond which the model will return a
 /// fallback response instead of generated content.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct SafetySetting {
   /// Block at and beyond a specified ``SafetyRating/HarmProbability``.
   public struct HarmBlockThreshold: EncodableProtoEnum, Sendable {
@@ -174,6 +176,7 @@ public struct SafetySetting {
   }
 
   /// The method of computing whether the ``SafetySetting/HarmBlockThreshold`` has been exceeded.
+  @available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
   public struct HarmBlockMethod: EncodableProtoEnum, Sendable {
     enum Kind: String {
       case severity = "SEVERITY"
@@ -224,6 +227,7 @@ public struct SafetySetting {
 }
 
 /// Categories describing the potential harm a piece of content may pose.
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct HarmCategory: CodableProtoEnum, Hashable, Sendable {
   enum Kind: String {
     case harassment = "HARM_CATEGORY_HARASSMENT"
@@ -260,7 +264,7 @@ public struct HarmCategory: CodableProtoEnum, Hashable, Sendable {
 
 // MARK: - Codable Conformances
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension SafetyRating: Decodable {
   enum CodingKeys: CodingKey {
     case category
@@ -287,8 +291,8 @@ extension SafetyRating: Decodable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension SafetySetting.HarmBlockThreshold: Encodable {}
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension SafetySetting: Encodable {}
diff --git a/FirebaseVertexAI/Sources/Types/Internal/InternalPart.swift b/FirebaseVertexAI/Sources/Types/Internal/InternalPart.swift
index 8a62ae4fdd9..872f394abd1 100644
--- a/FirebaseVertexAI/Sources/Types/Internal/InternalPart.swift
+++ b/FirebaseVertexAI/Sources/Types/Internal/InternalPart.swift
@@ -14,7 +14,7 @@
 
 import Foundation
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct InlineData: Codable, Equatable, Sendable {
   let mimeType: String
   let data: Data
@@ -25,7 +25,7 @@ struct InlineData: Codable, Equatable, Sendable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct FileData: Codable, Equatable, Sendable {
   let fileURI: String
   let mimeType: String
@@ -36,7 +36,7 @@ struct FileData: Codable, Equatable, Sendable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct FunctionCall: Equatable, Sendable {
   let name: String
   let args: JSONObject
@@ -47,7 +47,7 @@ struct FunctionCall: Equatable, Sendable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct FunctionResponse: Codable, Equatable, Sendable {
   let name: String
   let response: JSONObject
@@ -58,7 +58,7 @@ struct FunctionResponse: Codable, Equatable, Sendable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct ErrorPart: Part, Error {
   let error: Error
 
@@ -69,7 +69,7 @@ struct ErrorPart: Part, Error {
 
 // MARK: - Codable Conformances
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension FunctionCall: Codable {
   init(from decoder: Decoder) throws {
     let container = try decoder.container(keyedBy: CodingKeys.self)
@@ -82,7 +82,7 @@ extension FunctionCall: Codable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension ErrorPart: Codable {
   init(from decoder: any Decoder) throws {
     fatalError("Decoding an ErrorPart is not supported.")
@@ -95,7 +95,7 @@ extension ErrorPart: Codable {
 
 // MARK: - Equatable Conformances
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension ErrorPart: Equatable {
   static func == (lhs: ErrorPart, rhs: ErrorPart) -> Bool {
     fatalError("Comparing ErrorParts for equality is not supported.")
diff --git a/FirebaseVertexAI/Sources/Types/Public/Part.swift b/FirebaseVertexAI/Sources/Types/Public/Part.swift
index 8cc25de1db2..41de624c56c 100644
--- a/FirebaseVertexAI/Sources/Types/Public/Part.swift
+++ b/FirebaseVertexAI/Sources/Types/Public/Part.swift
@@ -17,11 +17,11 @@ import Foundation
 /// A discrete piece of data in a media format interpretable by an AI model.
 ///
 /// Within a single value of ``Part``, different data types may not mix.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public protocol Part: PartsRepresentable, Codable, Sendable, Equatable {}
 
 /// A text part containing a string value.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct TextPart: Part {
   /// Text value.
   public let text: String
@@ -34,7 +34,7 @@ public struct TextPart: Part {
 /// Data with a specified media type.
 ///
 /// > Note: Not all media types may be supported by the AI model.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct InlineDataPart: Part {
   let inlineData: InlineData
 
@@ -51,7 +51,7 @@ public struct InlineDataPart: Part {
 }
 
 /// File data stored in Cloud Storage for Firebase, referenced by URI.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct FileDataPart: Part {
   let fileData: FileData
 
@@ -77,7 +77,7 @@ public struct FileDataPart: Part {
 }
 
 /// A predicted function call returned from the model.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct FunctionCallPart: Part {
   let functionCall: FunctionCall
 
@@ -109,7 +109,7 @@ public struct FunctionCallPart: Part {
 /// Contains a string representing the `FunctionDeclaration.name` and a structured JSON object
 /// containing any output from the function is used as context to the model. This should contain the
 /// result of a ``FunctionCallPart`` made based on model prediction.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct FunctionResponsePart: Part {
   let functionResponse: FunctionResponse
 
diff --git a/FirebaseVertexAI/Sources/Types/Public/Schema.swift b/FirebaseVertexAI/Sources/Types/Public/Schema.swift
index 9496113a071..93cf4f55127 100644
--- a/FirebaseVertexAI/Sources/Types/Public/Schema.swift
+++ b/FirebaseVertexAI/Sources/Types/Public/Schema.swift
@@ -18,8 +18,10 @@ import Foundation
 ///
 /// These types can be objects, but also primitives and arrays. Represents a select subset of an
 /// [OpenAPI 3.0 schema object](https://spec.openapis.org/oas/v3.0.3#schema).
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public class Schema {
   /// Modifiers describing the expected format of a string `Schema`.
+  @available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
   public struct StringFormat: EncodableProtoEnum {
     // This enum is currently only used to conform `StringFormat` to `ProtoEnum`, which requires
     // `associatedtype Kind: RawRepresentable<String>`.
@@ -37,6 +39,7 @@ public class Schema {
   }
 
   /// Modifiers describing the expected format of an integer `Schema`.
+  @available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
   public struct IntegerFormat: EncodableProtoEnum {
     enum Kind: String {
       case int32
@@ -321,6 +324,7 @@ public class Schema {
 
 // MARK: - Codable Conformance
 
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension Schema: Encodable {
   enum CodingKeys: String, CodingKey {
     case dataType = "type"
diff --git a/FirebaseVertexAI/Sources/VertexAI.swift b/FirebaseVertexAI/Sources/VertexAI.swift
index 896f2982c61..ad378c067d1 100644
--- a/FirebaseVertexAI/Sources/VertexAI.swift
+++ b/FirebaseVertexAI/Sources/VertexAI.swift
@@ -21,7 +21,7 @@ import Foundation
 @_implementationOnly import FirebaseCoreExtension
 
 /// The Vertex AI for Firebase SDK provides access to Gemini models directly from your app.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public class VertexAI {
   // MARK: - Public APIs
 
diff --git a/FirebaseVertexAI/Tests/Unit/GenerationConfigTests.swift b/FirebaseVertexAI/Tests/Unit/GenerationConfigTests.swift
index 232807d08da..e6bfe7cf09b 100644
--- a/FirebaseVertexAI/Tests/Unit/GenerationConfigTests.swift
+++ b/FirebaseVertexAI/Tests/Unit/GenerationConfigTests.swift
@@ -16,7 +16,7 @@ import FirebaseVertexAI
 import Foundation
 import XCTest
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 final class GenerationConfigTests: XCTestCase {
   let encoder = JSONEncoder()
 
diff --git a/FirebaseVertexAI/Tests/Unit/JSONValueTests.swift b/FirebaseVertexAI/Tests/Unit/JSONValueTests.swift
index 74196230887..77b88b686e1 100644
--- a/FirebaseVertexAI/Tests/Unit/JSONValueTests.swift
+++ b/FirebaseVertexAI/Tests/Unit/JSONValueTests.swift
@@ -15,6 +15,7 @@ import XCTest
 
 @testable import FirebaseVertexAI
 
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 final class JSONValueTests: XCTestCase {
   let decoder = JSONDecoder()
   let encoder = JSONEncoder()
diff --git a/FirebaseVertexAI/Tests/Unit/PartTests.swift b/FirebaseVertexAI/Tests/Unit/PartTests.swift
index 35c3b441d9f..d48600e9013 100644
--- a/FirebaseVertexAI/Tests/Unit/PartTests.swift
+++ b/FirebaseVertexAI/Tests/Unit/PartTests.swift
@@ -17,7 +17,7 @@ import XCTest
 
 @testable import FirebaseVertexAI
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 final class PartTests: XCTestCase {
   let decoder = JSONDecoder()
   let encoder = JSONEncoder()
diff --git a/FirebaseVertexAI/Tests/Unit/PartsRepresentableTests.swift b/FirebaseVertexAI/Tests/Unit/PartsRepresentableTests.swift
index 859b77f58c7..cf5e6a1eadf 100644
--- a/FirebaseVertexAI/Tests/Unit/PartsRepresentableTests.swift
+++ b/FirebaseVertexAI/Tests/Unit/PartsRepresentableTests.swift
@@ -25,7 +25,7 @@ import XCTest
 
 @testable import FirebaseVertexAI
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 final class PartsRepresentableTests: XCTestCase {
   #if !os(watchOS)
     func testModelContentFromCGImageIsNotEmpty() throws {
diff --git a/FirebaseVertexAI/Tests/Unit/VertexAIAPITests.swift b/FirebaseVertexAI/Tests/Unit/VertexAIAPITests.swift
index f113bb7bf49..56dff8dd02b 100644
--- a/FirebaseVertexAI/Tests/Unit/VertexAIAPITests.swift
+++ b/FirebaseVertexAI/Tests/Unit/VertexAIAPITests.swift
@@ -21,7 +21,7 @@ import XCTest
   import UIKit // For UIImage extensions.
 #endif
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 final class VertexAIAPITests: XCTestCase {
   func codeSamples() async throws {
     let app = FirebaseApp.app()
diff --git a/FirebaseVertexAI/Tests/Unit/VertexComponentTests.swift b/FirebaseVertexAI/Tests/Unit/VertexComponentTests.swift
index 64a3edcc6b8..bea85bf96e7 100644
--- a/FirebaseVertexAI/Tests/Unit/VertexComponentTests.swift
+++ b/FirebaseVertexAI/Tests/Unit/VertexComponentTests.swift
@@ -20,7 +20,7 @@ import XCTest
 
 @testable import FirebaseVertexAI
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 class VertexComponentTests: XCTestCase {
   static let projectID = "test-project-id"
   static let apiKey = "test-api-key"

From e7ba8900178882b23d27b5fb8890aebb6c542ad6 Mon Sep 17 00:00:00 2001
From: Andrew Heard <andrewheard@google.com>
Date: Wed, 16 Oct 2024 10:42:43 -0400
Subject: [PATCH 2/3] Add changelog entry

---
 FirebaseVertexAI/CHANGELOG.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/FirebaseVertexAI/CHANGELOG.md b/FirebaseVertexAI/CHANGELOG.md
index 95d70ca6c0a..02aa129a852 100644
--- a/FirebaseVertexAI/CHANGELOG.md
+++ b/FirebaseVertexAI/CHANGELOG.md
@@ -52,6 +52,9 @@
   `any(allowedFunctionNames:)`, or `none()` to create a config. (#13873)
 - [changed] **Breaking Change**: The `CandidateResponse` type is now named
   `Candidate`. (#13897)
+- [changed] **Breaking Change**: The minimum deployment target for the SDK is
+  now macOS 12.0; all other platform minimums remain the same at iOS 15.0,
+  macCatalyst 15.0, tvOS 15.0, and watchOS 8.0. (#13903)
 - [changed] The default request timeout is now 180 seconds instead of the
   platform-default value of 60 seconds for a `URLRequest`; this timeout may
   still be customized in `RequestOptions`. (#13722)

From 27a46b25f27f13e64cb999036bfd151a211272db Mon Sep 17 00:00:00 2001
From: Andrew Heard <andrewheard@google.com>
Date: Wed, 16 Oct 2024 11:02:03 -0400
Subject: [PATCH 3/3] Fix `PartsRepresentable+Image` annotations

---
 FirebaseVertexAI/Sources/PartsRepresentable+Image.swift | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/FirebaseVertexAI/Sources/PartsRepresentable+Image.swift b/FirebaseVertexAI/Sources/PartsRepresentable+Image.swift
index 9c5a0c7fe77..5bedeb8f3d1 100644
--- a/FirebaseVertexAI/Sources/PartsRepresentable+Image.swift
+++ b/FirebaseVertexAI/Sources/PartsRepresentable+Image.swift
@@ -67,7 +67,7 @@ enum ImageConversionError: Error {
 
 #if !os(watchOS) // This code does not build on watchOS.
   /// Enables `CGImages` to be representable as model content.
-  @available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, *)
+  @available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, *)
   extension CGImage: PartsRepresentable {
     public var partsValue: [any Part] {
       let output = NSMutableData()
@@ -90,7 +90,7 @@ enum ImageConversionError: Error {
 
 #if canImport(CoreImage)
   /// Enables `CIImages` to be representable as model content.
-  @available(iOS 15.0, macOS 11.0, macCatalyst 15.0, tvOS 15.0, *)
+  @available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, *)
   extension CIImage: PartsRepresentable {
     public var partsValue: [any Part] {
       let context = CIContext()