1.x branch: bump to 1.21.0 to make a release.

Author: thomasvl

Sources/SwiftProtobuf/Version.swift

@@ -19,9 +19,9 @@ public struct Version {
   /// Major version.
   public static let major = 1
   /// Minor version.
-  public static let minor = 20
+  public static let minor = 21
   /// Revision number.
-  public static let revision = 3
+  public static let revision = 0
 
   /// String form of the version number.
   public static let versionString = "\(major).\(minor).\(revision)"

SwiftProtobuf.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name = 'SwiftProtobuf'
-  s.version = '1.20.3'
+  s.version = '1.21.0'
   s.license = { :type => 'Apache 2.0', :file => 'LICENSE.txt' }
   s.summary = 'Swift Protobuf code generator plugin and runtime library'
   s.homepage = 'https://github.com/apple/swift-protobuf'

SwiftProtobuf.xcodeproj/xcconfigs/Base.xcconfig

@@ -13,7 +13,7 @@ APPLICATION_EXTENSION_API_ONLY = YES
 DYLIB_CURRENT_VERSION = 1
 DYLIB_COMPATIBILITY_VERSION = 1
 DYLIB_INSTALL_NAME_BASE = @rpath
-CURRENT_PROJECT_VERSION = 1.20.3
+CURRENT_PROJECT_VERSION = 1.21.0
 
 // Packaging
 PRODUCT_NAME = $(TARGET_NAME)