Update activerecord requirement from ~> 3.x.x to >= 3, < 8

Gemfile

@@ -1,5 +1,5 @@
 source "http://rubygems.org"
-gem 'activerecord', '~>3.x.x'
+gem 'activerecord', '~>6.beta1'
 gem 'vertica', '~>0.9.x'
 
 group :development do

Gemfile.lock

@@ -1,31 +1,34 @@
 GEM
   remote: http://rubygems.org/
   specs:
-    activemodel (3.0.12)
-      activesupport (= 3.0.12)
-      builder (~> 2.1.2)
-      i18n (~> 0.5.0)
-    activerecord (3.0.12)
-      activemodel (= 3.0.12)
-      activesupport (= 3.0.12)
-      arel (~> 2.0.10)
-      tzinfo (~> 0.3.23)
-    activesupport (3.0.12)
-    arel (2.0.10)
-    builder (2.1.2)
+    activemodel (6.0.0.beta1)
+      activesupport (= 6.0.0.beta1)
+    activerecord (6.0.0.beta1)
+      activemodel (= 6.0.0.beta1)
+      activesupport (= 6.0.0.beta1)
+    activesupport (6.0.0.beta1)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
+    concurrent-ruby (1.2.0)
     git (1.2.5)
-    i18n (0.5.0)
+    i18n (1.12.0)
+      concurrent-ruby (~> 1.0)
     jeweler (1.6.4)
       bundler (~> 1.0)
       git (>= 1.2.5)
       rake
+    minitest (5.17.0)
     multi_json (1.1.0)
     rake (0.9.2.2)
     simplecov (0.6.1)
       multi_json (~> 1.0)
       simplecov-html (~> 0.5.3)
     simplecov-html (0.5.3)
-    tzinfo (0.3.32)
+    thread_safe (0.3.6)
+    tzinfo (1.2.10)
+      thread_safe (~> 0.1)
     vertica (0.9.1)
       jeweler
       rake
@@ -35,7 +38,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  activerecord (~> 3.x.x)
+  activerecord (~> 6.beta1)
   bundler (~> 1.0.0)
   jeweler (~> 1.6.4)
   simplecov

activerecord_vertica_adapter.gemspec

@@ -40,22 +40,22 @@ Gem::Specification.new do |s|
     s.specification_version = 3
 
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
-      s.add_runtime_dependency(%q<activerecord>, ["~> 3.x.x"])
+      s.add_runtime_dependency(%q<activerecord>, ">= 3", "< 8")
       s.add_runtime_dependency(%q<vertica>, ["~> 0.9.x"])
       s.add_development_dependency(%q<yard>, ["~> 0.6.0"])
       s.add_development_dependency(%q<bundler>, ["~> 1.0.0"])
       s.add_development_dependency(%q<jeweler>, ["~> 1.6.4"])
       s.add_development_dependency(%q<simplecov>, [">= 0"])
     else
-      s.add_dependency(%q<activerecord>, ["~> 3.x.x"])
+      s.add_dependency(%q<activerecord>, ">= 3", "< 8")
       s.add_dependency(%q<vertica>, ["~> 0.9.x"])
       s.add_dependency(%q<yard>, ["~> 0.6.0"])
       s.add_dependency(%q<bundler>, ["~> 1.0.0"])
       s.add_dependency(%q<jeweler>, ["~> 1.6.4"])
       s.add_dependency(%q<simplecov>, [">= 0"])
     end
   else
-    s.add_dependency(%q<activerecord>, ["~> 3.x.x"])
+    s.add_dependency(%q<activerecord>, ">= 3", "< 8")
     s.add_dependency(%q<vertica>, ["~> 0.9.x"])
     s.add_dependency(%q<yard>, ["~> 0.6.0"])
     s.add_dependency(%q<bundler>, ["~> 1.0.0"])