[Vertex AI] Increase macOS minimum to 12.0 (#13903)

Author: andrewheard

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)

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
 

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 {}

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 {}

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)

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
 

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

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 {}

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`.

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"