Update rubies to 2.6.6, 2.5.8 and 2.4.10

Rakefile

@@ -17,12 +17,12 @@
 RUNTIME_PROJECT="gcp-runtimes"
 BUNDLER1_VERSION="1.17.3"
 BUNDLER2_VERSION="2.0.2"
-DEFAULT_RUBY_VERSION="2.6.5"
+DEFAULT_RUBY_VERSION="2.6.6"
 NODEJS_VERSION="10.16.3"
 GCLOUD_VERSION="261.0.0"
 OS_NAME="ubuntu16"
 
-LOCAL_PREBUILT_RUBY_VERSIONS=["2.4.9", "2.5.7", "2.6.5"]
+LOCAL_PREBUILT_RUBY_VERSIONS=["2.4.10", "2.5.8", "2.6.6"]
 LOCAL_PREBUILT_RUBY_IMAGE_BASE="ruby-prebuilt-"
 LOCAL_PREBUILT_RUBY_IMAGE_TAG="latest"
 RELEASED_PREBUILT_RUBY_VERSIONS=::File.readlines("ruby-pipeline/ruby-latest.yaml")

build-ruby-runtime-images.sh

@@ -18,7 +18,7 @@
 # This is the Ruby version that is installed in the "basic" convenience image
 # and that is used to run generate-dockerfile. It is NOT the same as the Ruby
 # version used by the runtime by default if one is not specified by the app.
-BASIC_RUBY_VERSION=2.6.5
+BASIC_RUBY_VERSION=2.6.6
 
 BUNDLER1_VERSION=1.17.3
 BUNDLER2_VERSION=2.0.2

ruby-pipeline/ruby-latest.yaml

@@ -42,20 +42,23 @@ steps:
            '--prebuilt-image=2.4.6=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.4.6:latest',
            '--prebuilt-image=2.4.7=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.4.7:latest',
            '--prebuilt-image=2.4.9=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.4.9:latest',
+           '--prebuilt-image=2.4.10=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.4.10:latest',
            '--prebuilt-image=2.5.0=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.5.0:latest',
            '--prebuilt-image=2.5.1=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.5.1:latest',
            '--prebuilt-image=2.5.3=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.5.3:latest',
            '--prebuilt-image=2.5.4=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.5.4:latest',
            '--prebuilt-image=2.5.5=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.5.5:latest',
            '--prebuilt-image=2.5.6=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.5.6:latest',
            '--prebuilt-image=2.5.7=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.5.7:latest',
+           '--prebuilt-image=2.5.8=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.5.8:latest',
            '--prebuilt-image=2.6.0=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.6.0:latest',
            '--prebuilt-image=2.6.1=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.6.1:latest',
            '--prebuilt-image=2.6.2=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.6.2:latest',
            '--prebuilt-image=2.6.3=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.6.3:latest',
            '--prebuilt-image=2.6.4=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.6.4:latest',
            '--prebuilt-image=2.6.5=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.6.5:latest',
-           '--default-ruby-version=2.6.5']
+           '--prebuilt-image=2.6.6=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.6.6:latest',
+           '--default-ruby-version=2.6.6']
   - name: 'gcr.io/cloud-builders/docker:latest'
     args: ['build', '--network=cloudbuild', '-t', '$_OUTPUT_IMAGE', '.']
 images:

test/test_base_ruby_versions.rb

@@ -37,7 +37,9 @@ class TestRubyVersions < ::Minitest::Test
     "2.4.5",
     "2.4.6",
     "2.4.7",
+    # 2.4.8 was withdrawn.
     "2.4.9",
+    "2.4.10",
     # 2.5.x versions are currently supported.
     "2.5.0",
     "2.5.1",
@@ -46,20 +48,22 @@ class TestRubyVersions < ::Minitest::Test
     "2.5.5",
     "2.5.6",
     "2.5.7",
+    "2.5.8",
     # 2.6.0 versions are currently supported.
     "2.6.0",
     "2.6.1",
     "2.6.2",
     "2.6.3",
     "2.6.4",
-    "2.6.5"
+    "2.6.5",
+    "2.6.6"
   ]
 
   FASTER_VERSIONS = [
     # Test only the latest patch of each supported minor version.
-    "2.4.9",
-    "2.5.7",
-    "2.6.5"
+    "2.4.10",
+    "2.5.8",
+    "2.6.6"
   ]
 
   PREBUILT_VERSIONS = ::ENV["PREBUILT_RUBY_VERSIONS"].to_s.split(",")